[VirtualFileSystem] Support virtual working directory in the RedirectingFS #11

JDevlieghere · 2019-10-21T20:13:06Z

Before this patch, changing the working directory of the RedirectingFS
would just forward to its external file system. This prevented us from
having a working directory that only existed in the VFS mapping.

This patch adds support for a virtual working directory in the
RedirectingFileSystem. It now keeps track of its own WD in addition to
updating the WD of the external file system. This ensures that we can
still fall through for relative paths.

This change was originally motivated by the reproducer infrastructure in
LLDB where we want to deal transparently with relative paths.

JDevlieghere · 2019-10-21T20:13:16Z

@swift-ci please test

JDevlieghere · 2019-10-21T21:49:48Z

@swift-ci please test

Add a reverse iterator to the overlay file system. This makes it possible to take overlays from one OverlayFileSystem, and add them to another. Differential revision: https://reviews.llvm.org/D64113 llvm-svn: 364986 (cherry picked from commit efe2108)

…ingFS Before this patch, changing the working directory of the RedirectingFS would just forward to its external file system. This prevented us from having a working directory that only existed in the VFS mapping. This patch adds support for a virtual working directory in the RedirectingFileSystem. It now keeps track of its own WD in addition to updating the WD of the external file system. This ensures that we can still fall through for relative paths. This change was originally motivated by the reproducer infrastructure in LLDB where we want to deal transparently with relative paths. Differential revision: https://reviews.llvm.org/D65677 llvm-svn: 374917 (cherry picked from commit 0b9981b)

The 'bar' directory should be part of the root rather than the file itself. llvm-svn: 374930 (cherry picked from commit 621ce37)

…RedirectingFS" This reverts the original commit and the follow up: Revert "[VirtualFileSystem] Support virtual working directory in the RedirectingFS" Revert "[test] Update YAML mapping in VirtualFileSystemTest" llvm-svn: 374935 (cherry picked from commit 409b4b5)

…RedirectingFS Before this patch, changing the working directory of the RedirectingFS would just forward to its external file system. This prevented us from having a working directory that only existed in the VFS mapping. This patch adds support for a virtual working directory in the RedirectingFileSystem. It now keeps track of its own WD in addition to updating the WD of the external file system. This ensures that we can still fall through for relative paths. This change was originally motivated by the reproducer infrastructure in LLDB where we want to deal transparently with relative paths. Differential revision: https://reviews.llvm.org/D65677 llvm-svn: 374955 (cherry picked from commit 2170354)

Even though this is a unit test, it still may be run under optimization. llvm-svn: 374961 (cherry picked from commit a337806)

…an && to fix warning Seems to be just a typo - now matches other instances which do something similar llvm-svn: 374995 (cherry picked from commit 0caee27)

Silences a number of clang static analyzer null dereference warnings. llvm-svn: 373325 (cherry picked from commit 7ce3123)

This fixes a bug for making path with a //net style root absolute. I discovered the bug while writing a test case for the VFS, which uses these paths because they're both legal absolute paths on Windows and Unix. Differential revision: https://reviews.llvm.org/D65675 llvm-svn: 368053 (cherry picked from commit cb6f264)

JDevlieghere · 2019-10-22T00:02:06Z

@swift-ci please test

JDevlieghere · 2019-10-22T18:36:50Z

@swift-ci please test

JDevlieghere · 2019-10-23T21:06:27Z

@swift-ci please test

JDevlieghere · 2019-10-28T17:11:57Z

@swift-ci please test

This reverts commit e57a9ab. Parser/cxx2a-placeholder-type-constraint.cpp has MSan failures. Present at 7b81c3f: http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap-msan/builds/17133/steps/check-clang%20msan/logs/stdio not present at eaa594f: http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap-msan/builds/17132/steps/check-clang%20msan/logs/stdio Stack trace: ``` ==57032==WARNING: MemorySanitizer: use-of-uninitialized-value #0 0xccfe016 in clang::AutoTypeLoc::getLocalSourceRange() const /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/include/clang/AST/TypeLoc.h:2036:19 #1 0xcc56758 in CheckDeducedPlaceholderConstraints(clang::Sema&, clang::AutoType const&, clang::AutoTypeLoc, clang::QualType) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Sema/SemaTemplateDeduction.cpp:4505:56 #2 0xcc550ce in clang::Sema::DeduceAutoType(clang::TypeLoc, clang::Expr*&, clang::QualType&, llvm::Optional<unsigned int>, bool) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Sema/SemaTemplateDeduction.cpp:4707:11 #3 0xcc52407 in clang::Sema::DeduceAutoType(clang::TypeSourceInfo*, clang::Expr*&, clang::QualType&, llvm::Optional<unsigned int>, bool) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Sema/SemaTemplateDeduction.cpp:4457:10 #4 0xba38332 in clang::Sema::deduceVarTypeFromInitializer(clang::VarDecl*, clang::DeclarationName, clang::QualType, clang::TypeSourceInfo*, clang::SourceRange, bool, clang::Expr*) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:11351:7 #5 0xba3a8a9 in clang::Sema::DeduceVariableDeclarationType(clang::VarDecl*, bool, clang::Expr*) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:11385:26 #6 0xba3c520 in clang::Sema::AddInitializerToDecl(clang::Decl*, clang::Expr*, bool) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:11725:9 #7 0xb39c498 in clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Parse/ParseDecl.cpp:2399:17 #8 0xb394d80 in clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::SourceLocation*, clang::Parser::ForRangeInit*) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Parse/ParseDecl.cpp:2128:21 #9 0xb383bbf in clang::Parser::ParseSimpleDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&, bool, clang::Parser::ForRangeInit*, clang::SourceLocation*) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Parse/ParseDecl.cpp:1848:10 #10 0xb383129 in clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&, clang::SourceLocation*) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/llvm/include/llvm/ADT/PointerUnion.h #11 0xb53a388 in clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::Parser::ParsedAttributesWithRange&) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Parse/ParseStmt.cpp:221:13 #12 0xb539309 in clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Parse/ParseStmt.cpp:106:20 #13 0xb55610e in clang::Parser::ParseCompoundStatementBody(bool) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Parse/ParseStmt.cpp:1079:11 #14 0xb559529 in clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Parse/ParseStmt.cpp:2204:21 #15 0xb33c13e in clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Parse/Parser.cpp:1339:10 #16 0xb394703 in clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::SourceLocation*, clang::Parser::ForRangeInit*) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Parse/ParseDecl.cpp:2068:11 #17 0xb338e52 in clang::Parser::ParseDeclOrFunctionDefInternal(clang::Parser::ParsedAttributesWithRange&, clang::ParsingDeclSpec&, clang::AccessSpecifier) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Parse/Parser.cpp:1099:10 #18 0xb337674 in clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsedAttributesWithRange&, clang::ParsingDeclSpec*, clang::AccessSpecifier) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Parse/Parser.cpp:1115:12 #19 0xb334a96 in clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&, clang::ParsingDeclSpec*) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Parse/Parser.cpp:935:12 #20 0xb32f12a in clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Parse/Parser.cpp:686:12 #21 0xb31e193 in clang::ParseAST(clang::Sema&, bool, bool) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Parse/ParseAST.cpp:158:20 #22 0x80263f0 in clang::FrontendAction::Execute() /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Frontend/FrontendAction.cpp:936:8 #23 0x7f2a257 in clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:965:33 #24 0x8288bef in clang::ExecuteCompilerInvocation(clang::CompilerInstance*) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:290:25 #25 0xad44c2 in cc1_main(llvm::ArrayRef<char const*>, char const*, void*) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/tools/driver/cc1_main.cpp:239:15 #26 0xacd76a in ExecuteCC1Tool(llvm::ArrayRef<char const*>) /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/tools/driver/driver.cpp:325:12 #27 0xacc9fd in main /b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm-project/clang/tools/driver/driver.cpp:398:12 #28 0x7f7d82cdb2e0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202e0) #29 0xa4dde9 in _start (/b/sanitizer-x86_64-linux-bootstrap-msan/build/llvm_build_msan/bin/clang-11+0xa4dde9) ```

…RecoveryExpr. Summary: crash stack: ``` lang: workspace/llvm-project/clang/lib/AST/ExprConstant.cpp:13704: bool EvaluateInPlace(clang::APValue &, (anonymous namespace)::EvalInfo &, const (anonymous namespace)::LValue &, const clang::Expr *, bool): Assertion `!E->isValueDependent()' failed. #8 EvaluateInPlace(clang::APValue&, (anonymous namespace)::EvalInfo&, (anonymous namespace)::LValue const&, clang::Expr const*, bool) workspace/llvm-project/clang/lib/AST/ExprConstant.cpp:0:0 #9 HandleConstructorCall(clang::Expr const*, (anonymous namespace)::LValue const&, clang::APValue*, clang::CXXConstructorDecl const*, (anonymous namespace)::EvalInfo&, clang::APValue&) workspace/llvm-project/clang/lib/AST/ExprConstant.cpp:5779:57 #10 HandleConstructorCall(clang::Expr const*, (anonymous namespace)::LValue const&, llvm::ArrayRef<clang::Expr const*>, clang::CXXConstructorDecl const*, (anonymous namespace)::EvalInfo&, clang::APValue&) workspace/llvm-project/clang/lib/AST/ExprConstant.cpp:5819:10 #11 clang::Expr::isPotentialConstantExpr(clang::FunctionDecl const*, llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic> >&) workspace/llvm-project/clang/lib/AST/ExprConstant.cpp:14746:5 #12 CheckConstexprFunctionBody(clang::Sema&, clang::FunctionDecl const*, clang::Stmt*, clang::Sema::CheckConstexprKind) workspace/llvm-project/clang/lib/Sema/SemaDeclCXX.cpp:2306:7 #13 clang::Sema::CheckConstexprFunctionDefinition(clang::FunctionDecl const*, clang::Sema::CheckConstexprKind) workspace/llvm-project/clang/lib/Sema/SemaDeclCXX.cpp:1766:0 #14 clang::Sema::ActOnFinishFunctionBody(clang::Decl*, clang::Stmt*, bool) workspace/llvm-project/clang/lib/Sema/SemaDecl.cpp:14357:9 #15 clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) workspace/llvm-project/clang/lib/Parse/ParseStmt.cpp:2213:18 ``` Reviewers: sammccall Reviewed By: sammccall Subscribers: rsmith, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D77041

Bitcode file alignment is only 32-bit so 64-bit offsets need special handling. /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReader.cpp:6327:28: runtime error: load of misaligned address 0x7fca2bcfe54c for type 'const uint64_t' (aka 'const unsigned long'), which requires 8 byte alignment 0x7fca2bcfe54c: note: pointer points here 00 00 00 00 5a a6 01 00 00 00 00 00 19 a7 01 00 00 00 00 00 48 a7 01 00 00 00 00 00 7d a7 01 00 ^ #0 0x3be2fe4 in clang::ASTReader::TypeCursorForIndex(unsigned int) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReader.cpp:6327:28 #1 0x3be30a0 in clang::ASTReader::readTypeRecord(unsigned int) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReader.cpp:6348:24 #2 0x3bd3d4a in clang::ASTReader::GetType(unsigned int) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReader.cpp:6985:26 #3 0x3c5d9ae in clang::ASTDeclReader::Visit(clang::Decl*) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReaderDecl.cpp:533:31 #4 0x3c91cac in clang::ASTReader::ReadDeclRecord(unsigned int) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReaderDecl.cpp:4045:10 #5 0x3bd4fb1 in clang::ASTReader::GetDecl(unsigned int) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReader.cpp:7352:5 #6 0x3bce2f9 in clang::ASTReader::ReadASTBlock(clang::serialization::ModuleFile&, unsigned int) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReader.cpp:3625:22 #7 0x3bd6d75 in clang::ASTReader::ReadAST(llvm::StringRef, clang::serialization::ModuleKind, clang::SourceLocation, unsigned int, llvm::SmallVectorImpl<clang::ASTReader::ImportedSubmodule>*) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReader.cpp:4230:32 #8 0x3a6b415 in clang::CompilerInstance::createPCHExternalASTSource(llvm::StringRef, llvm::StringRef, bool, bool, clang::Preprocessor&, clang::InMemoryModuleCache&, clang::ASTContext&, clang::PCHContainerReader const&, llvm::ArrayRef<std::shared_ptr<clang::ModuleFileExtension> >, llvm::ArrayRef<std::shared_ptr<clang::DependencyCollector> >, void*, bool, bool, bool) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:539:19 #9 0x3a6b00e in clang::CompilerInstance::createPCHExternalASTSource(llvm::StringRef, bool, bool, void*, bool) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:501:18 #10 0x3abac80 in clang::FrontendAction::BeginSourceFile(clang::CompilerInstance&, clang::FrontendInputFile const&) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Frontend/FrontendAction.cpp:865:12 #11 0x3a6e61c in clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:972:13 #12 0x3ba74bf in clang::ExecuteCompilerInvocation(clang::CompilerInstance*) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:282:25 #13 0xa3f753 in cc1_main(llvm::ArrayRef<char const*>, char const*, void*) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/driver/cc1_main.cpp:240:15 #14 0xa3a68a in ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/driver/driver.cpp:330:12 #15 0xa37f31 in main /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/driver/driver.cpp:407:12 #16 0x7fca2a7032e0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202e0) #17 0xa21029 in _start (/b/sanitizer-x86_64-linux-fast/build/llvm_build_ubsan/bin/clang-11+0xa21029) This reverts commit 30d5946.

When `Target::GetEntryPointAddress()` calls `exe_module->GetObjectFile()->GetEntryPointAddress()`, and the returned `entry_addr` is valid, it can immediately be returned. However, just before that, an `llvm::Error` value has been setup, but in this case it is not consumed before returning, like is done further below in the function. In https://bugs.freebsd.org/248745 we got a bug report for this, where a very simple test case aborts and dumps core: ``` * thread #1, name = 'testcase', stop reason = breakpoint 1.1 frame #0: 0x00000000002018d4 testcase`main(argc=1, argv=0x00007fffffffea18) at testcase.c:3:5 1 int main(int argc, char *argv[]) 2 { -> 3 return 0; 4 } (lldb) p argc Program aborted due to an unhandled Error: Error value was Success. (Note: Success values must still be checked prior to being destroyed). Thread 1 received signal SIGABRT, Aborted. thr_kill () at thr_kill.S:3 3 thr_kill.S: No such file or directory. (gdb) bt #0 thr_kill () at thr_kill.S:3 #1 0x00000008049a0004 in __raise (s=6) at /usr/src/lib/libc/gen/raise.c:52 #2 0x0000000804916229 in abort () at /usr/src/lib/libc/stdlib/abort.c:67 #3 0x000000000451b5f5 in fatalUncheckedError () at /usr/src/contrib/llvm-project/llvm/lib/Support/Error.cpp:112 #4 0x00000000019cf008 in GetEntryPointAddress () at /usr/src/contrib/llvm-project/llvm/include/llvm/Support/Error.h:267 #5 0x0000000001bccbd8 in ConstructorSetup () at /usr/src/contrib/llvm-project/lldb/source/Target/ThreadPlanCallFunction.cpp:67 #6 0x0000000001bcd2c0 in ThreadPlanCallFunction () at /usr/src/contrib/llvm-project/lldb/source/Target/ThreadPlanCallFunction.cpp:114 #7 0x00000000020076d4 in InferiorCallMmap () at /usr/src/contrib/llvm-project/lldb/source/Plugins/Process/Utility/InferiorCallPOSIX.cpp:97 #8 0x0000000001f4be33 in DoAllocateMemory () at /usr/src/contrib/llvm-project/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp:604 #9 0x0000000001fe51b9 in AllocatePage () at /usr/src/contrib/llvm-project/lldb/source/Target/Memory.cpp:347 #10 0x0000000001fe5385 in AllocateMemory () at /usr/src/contrib/llvm-project/lldb/source/Target/Memory.cpp:383 #11 0x0000000001974da2 in AllocateMemory () at /usr/src/contrib/llvm-project/lldb/source/Target/Process.cpp:2301 #12 CanJIT () at /usr/src/contrib/llvm-project/lldb/source/Target/Process.cpp:2331 #13 0x0000000001a1bf3d in Evaluate () at /usr/src/contrib/llvm-project/lldb/source/Expression/UserExpression.cpp:190 #14 0x00000000019ce7a2 in EvaluateExpression () at /usr/src/contrib/llvm-project/lldb/source/Target/Target.cpp:2372 #15 0x0000000001ad784c in EvaluateExpression () at /usr/src/contrib/llvm-project/lldb/source/Commands/CommandObjectExpression.cpp:414 #16 0x0000000001ad86ae in DoExecute () at /usr/src/contrib/llvm-project/lldb/source/Commands/CommandObjectExpression.cpp:646 #17 0x0000000001a5e3ed in Execute () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandObject.cpp:1003 #18 0x0000000001a6c4a3 in HandleCommand () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandInterpreter.cpp:1762 #19 0x0000000001a6f98c in IOHandlerInputComplete () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandInterpreter.cpp:2760 #20 0x0000000001a90b08 in Run () at /usr/src/contrib/llvm-project/lldb/source/Core/IOHandler.cpp:548 #21 0x00000000019a6c6a in ExecuteIOHandlers () at /usr/src/contrib/llvm-project/lldb/source/Core/Debugger.cpp:903 #22 0x0000000001a70337 in RunCommandInterpreter () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandInterpreter.cpp:2946 #23 0x0000000001d9d812 in RunCommandInterpreter () at /usr/src/contrib/llvm-project/lldb/source/API/SBDebugger.cpp:1169 #24 0x0000000001918be8 in MainLoop () at /usr/src/contrib/llvm-project/lldb/tools/driver/Driver.cpp:675 #25 0x000000000191a114 in main () at /usr/src/contrib/llvm-project/lldb/tools/driver/Driver.cpp:890``` Fix the incorrect error catch by only instantiating an `Error` object if it is necessary. Reviewed By: JDevlieghere Differential Revision: https://reviews.llvm.org/D86355

When `Target::GetEntryPointAddress()` calls `exe_module->GetObjectFile()->GetEntryPointAddress()`, and the returned `entry_addr` is valid, it can immediately be returned. However, just before that, an `llvm::Error` value has been setup, but in this case it is not consumed before returning, like is done further below in the function. In https://bugs.freebsd.org/248745 we got a bug report for this, where a very simple test case aborts and dumps core: ``` * thread #1, name = 'testcase', stop reason = breakpoint 1.1 frame #0: 0x00000000002018d4 testcase`main(argc=1, argv=0x00007fffffffea18) at testcase.c:3:5 1 int main(int argc, char *argv[]) 2 { -> 3 return 0; 4 } (lldb) p argc Program aborted due to an unhandled Error: Error value was Success. (Note: Success values must still be checked prior to being destroyed). Thread 1 received signal SIGABRT, Aborted. thr_kill () at thr_kill.S:3 3 thr_kill.S: No such file or directory. (gdb) bt #0 thr_kill () at thr_kill.S:3 #1 0x00000008049a0004 in __raise (s=6) at /usr/src/lib/libc/gen/raise.c:52 #2 0x0000000804916229 in abort () at /usr/src/lib/libc/stdlib/abort.c:67 #3 0x000000000451b5f5 in fatalUncheckedError () at /usr/src/contrib/llvm-project/llvm/lib/Support/Error.cpp:112 #4 0x00000000019cf008 in GetEntryPointAddress () at /usr/src/contrib/llvm-project/llvm/include/llvm/Support/Error.h:267 #5 0x0000000001bccbd8 in ConstructorSetup () at /usr/src/contrib/llvm-project/lldb/source/Target/ThreadPlanCallFunction.cpp:67 #6 0x0000000001bcd2c0 in ThreadPlanCallFunction () at /usr/src/contrib/llvm-project/lldb/source/Target/ThreadPlanCallFunction.cpp:114 #7 0x00000000020076d4 in InferiorCallMmap () at /usr/src/contrib/llvm-project/lldb/source/Plugins/Process/Utility/InferiorCallPOSIX.cpp:97 #8 0x0000000001f4be33 in DoAllocateMemory () at /usr/src/contrib/llvm-project/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp:604 #9 0x0000000001fe51b9 in AllocatePage () at /usr/src/contrib/llvm-project/lldb/source/Target/Memory.cpp:347 #10 0x0000000001fe5385 in AllocateMemory () at /usr/src/contrib/llvm-project/lldb/source/Target/Memory.cpp:383 #11 0x0000000001974da2 in AllocateMemory () at /usr/src/contrib/llvm-project/lldb/source/Target/Process.cpp:2301 #12 CanJIT () at /usr/src/contrib/llvm-project/lldb/source/Target/Process.cpp:2331 #13 0x0000000001a1bf3d in Evaluate () at /usr/src/contrib/llvm-project/lldb/source/Expression/UserExpression.cpp:190 #14 0x00000000019ce7a2 in EvaluateExpression () at /usr/src/contrib/llvm-project/lldb/source/Target/Target.cpp:2372 #15 0x0000000001ad784c in EvaluateExpression () at /usr/src/contrib/llvm-project/lldb/source/Commands/CommandObjectExpression.cpp:414 #16 0x0000000001ad86ae in DoExecute () at /usr/src/contrib/llvm-project/lldb/source/Commands/CommandObjectExpression.cpp:646 #17 0x0000000001a5e3ed in Execute () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandObject.cpp:1003 #18 0x0000000001a6c4a3 in HandleCommand () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandInterpreter.cpp:1762 #19 0x0000000001a6f98c in IOHandlerInputComplete () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandInterpreter.cpp:2760 #20 0x0000000001a90b08 in Run () at /usr/src/contrib/llvm-project/lldb/source/Core/IOHandler.cpp:548 #21 0x00000000019a6c6a in ExecuteIOHandlers () at /usr/src/contrib/llvm-project/lldb/source/Core/Debugger.cpp:903 #22 0x0000000001a70337 in RunCommandInterpreter () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandInterpreter.cpp:2946 #23 0x0000000001d9d812 in RunCommandInterpreter () at /usr/src/contrib/llvm-project/lldb/source/API/SBDebugger.cpp:1169 #24 0x0000000001918be8 in MainLoop () at /usr/src/contrib/llvm-project/lldb/tools/driver/Driver.cpp:675 #25 0x000000000191a114 in main () at /usr/src/contrib/llvm-project/lldb/tools/driver/Driver.cpp:890``` Fix the incorrect error catch by only instantiating an `Error` object if it is necessary. Reviewed By: JDevlieghere Differential Revision: https://reviews.llvm.org/D86355 (cherry picked from commit 1ce07cd)

ADDI often has a frameindex in operand 1, but consumers of this interface, such as MachineSink, tend to call getReg() on the Destination and Source operands, leading to the following crash when building FreeBSD after this implementation was added in 8cf6778: ``` clang: llvm/include/llvm/CodeGen/MachineOperand.h:359: llvm::Register llvm::MachineOperand::getReg() const: Assertion `isReg() && "This is not a register operand!"' failed. PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace, preprocessed source, and associated run script. Stack dump: #0 0x00007f4286f9b4d0 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) llvm/lib/Support/Unix/Signals.inc:563:0 #1 0x00007f4286f9b587 PrintStackTraceSignalHandler(void*) llvm/lib/Support/Unix/Signals.inc:630:0 #2 0x00007f4286f9926b llvm::sys::RunSignalHandlers() llvm/lib/Support/Signals.cpp:71:0 #3 0x00007f4286f9ae52 SignalHandler(int) llvm/lib/Support/Unix/Signals.inc:405:0 #4 0x00007f428646ffd0 (/lib/x86_64-linux-gnu/libc.so.6+0x3efd0) #5 0x00007f428646ff47 raise /build/glibc-2ORdQG/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0 #6 0x00007f42864718b1 abort /build/glibc-2ORdQG/glibc-2.27/stdlib/abort.c:81:0 #7 0x00007f428646142a __assert_fail_base /build/glibc-2ORdQG/glibc-2.27/assert/assert.c:89:0 #8 0x00007f42864614a2 (/lib/x86_64-linux-gnu/libc.so.6+0x304a2) #9 0x00007f428d4078e2 llvm::MachineOperand::getReg() const llvm/include/llvm/CodeGen/MachineOperand.h:359:0 #10 0x00007f428d8260e7 attemptDebugCopyProp(llvm::MachineInstr&, llvm::MachineInstr&) llvm/lib/CodeGen/MachineSink.cpp:862:0 #11 0x00007f428d826442 performSink(llvm::MachineInstr&, llvm::MachineBasicBlock&, llvm::MachineInstrBundleIterator<llvm::MachineInstr, false>, llvm::SmallVectorImpl<llvm::MachineInstr*>&) llvm/lib/CodeGen/MachineSink.cpp:918:0 #12 0x00007f428d826e27 (anonymous namespace)::MachineSinking::SinkInstruction(llvm::MachineInstr&, bool&, std::map<llvm::MachineBasicBlock*, llvm::SmallVector<llvm::MachineBasicBlock*, 4u>, std::less<llvm::MachineBasicBlock*>, std::allocator<std::pair<llvm::MachineBasicBlock* const, llvm::SmallVector<llvm::MachineBasicBlock*, 4u> > > >&) llvm/lib/CodeGen/MachineSink.cpp:1073:0 #13 0x00007f428d824a2c (anonymous namespace)::MachineSinking::ProcessBlock(llvm::MachineBasicBlock&) llvm/lib/CodeGen/MachineSink.cpp:410:0 #14 0x00007f428d824513 (anonymous namespace)::MachineSinking::runOnMachineFunction(llvm::MachineFunction&) llvm/lib/CodeGen/MachineSink.cpp:340:0 ``` Thus, check that operand 1 is also a register in the condition. Reviewed By: arichardson, luismarques Differential Revision: https://reviews.llvm.org/D89090

CXXDeductionGuideDecl with a local typedef has its own copy of the TypedefDecl with the CXXDeductionGuideDecl as the DeclContext of that TypedefDecl. ``` template <typename T> struct A { typedef T U; A(U, T); }; A a{(int)0, (int)0}; ``` Related discussion on cfe-dev: http://lists.llvm.org/pipermail/cfe-dev/2020-November/067252.html Without this fix, when we import the CXXDeductionGuideDecl (via VisitFunctionDecl) then before creating the Decl we must import the FunctionType. However, the first parameter's type is the afore mentioned local typedef. So, we then start importing the TypedefDecl whose DeclContext is the CXXDeductionGuideDecl itself. The infinite loop is formed. ``` #0 clang::ASTNodeImporter::VisitCXXDeductionGuideDecl(clang::CXXDeductionGuideDecl*) clang/lib/AST/ASTImporter.cpp:3543:0 #1 clang::declvisitor::Base<std::add_pointer, clang::ASTNodeImporter, llvm::Expected<clang::Decl*> >::Visit(clang::Decl*) /home/egbomrt/WORK/llvm5/build/debug/tools/clang/include/clang/AST/DeclNodes.inc:405:0 #2 clang::ASTImporter::ImportImpl(clang::Decl*) clang/lib/AST/ASTImporter.cpp:8038:0 #3 clang::ASTImporter::Import(clang::Decl*) clang/lib/AST/ASTImporter.cpp:8200:0 #4 clang::ASTImporter::ImportContext(clang::DeclContext*) clang/lib/AST/ASTImporter.cpp:8297:0 #5 clang::ASTNodeImporter::ImportDeclContext(clang::Decl*, clang::DeclContext*&, clang::DeclContext*&) clang/lib/AST/ASTImporter.cpp:1852:0 #6 clang::ASTNodeImporter::ImportDeclParts(clang::NamedDecl*, clang::DeclContext*&, clang::DeclContext*&, clang::DeclarationName&, clang::NamedDecl*&, clang::SourceLocation&) clang/lib/AST/ASTImporter.cpp:1628:0 #7 clang::ASTNodeImporter::VisitTypedefNameDecl(clang::TypedefNameDecl*, bool) clang/lib/AST/ASTImporter.cpp:2419:0 #8 clang::ASTNodeImporter::VisitTypedefDecl(clang::TypedefDecl*) clang/lib/AST/ASTImporter.cpp:2500:0 #9 clang::declvisitor::Base<std::add_pointer, clang::ASTNodeImporter, llvm::Expected<clang::Decl*> >::Visit(clang::Decl*) /home/egbomrt/WORK/llvm5/build/debug/tools/clang/include/clang/AST/DeclNodes.inc:315:0 #10 clang::ASTImporter::ImportImpl(clang::Decl*) clang/lib/AST/ASTImporter.cpp:8038:0 #11 clang::ASTImporter::Import(clang::Decl*) clang/lib/AST/ASTImporter.cpp:8200:0 #12 llvm::Expected<clang::TypedefNameDecl*> clang::ASTNodeImporter::import<clang::TypedefNameDecl>(clang::TypedefNameDecl*) clang/lib/AST/ASTImporter.cpp:165:0 #13 clang::ASTNodeImporter::VisitTypedefType(clang::TypedefType const*) clang/lib/AST/ASTImporter.cpp:1304:0 #14 clang::TypeVisitor<clang::ASTNodeImporter, llvm::Expected<clang::QualType> >::Visit(clang::Type const*) /home/egbomrt/WORK/llvm5/build/debug/tools/clang/include/clang/AST/TypeNodes.inc:74:0 #15 clang::ASTImporter::Import(clang::QualType) clang/lib/AST/ASTImporter.cpp:8071:0 #16 llvm::Expected<clang::QualType> clang::ASTNodeImporter::import<clang::QualType>(clang::QualType const&) clang/lib/AST/ASTImporter.cpp:179:0 #17 clang::ASTNodeImporter::VisitFunctionProtoType(clang::FunctionProtoType const*) clang/lib/AST/ASTImporter.cpp:1244:0 #18 clang::TypeVisitor<clang::ASTNodeImporter, llvm::Expected<clang::QualType> >::Visit(clang::Type const*) /home/egbomrt/WORK/llvm5/build/debug/tools/clang/include/clang/AST/TypeNodes.inc:47:0 #19 clang::ASTImporter::Import(clang::QualType) clang/lib/AST/ASTImporter.cpp:8071:0 #20 llvm::Expected<clang::QualType> clang::ASTNodeImporter::import<clang::QualType>(clang::QualType const&) clang/lib/AST/ASTImporter.cpp:179:0 #21 clang::QualType clang::ASTNodeImporter::importChecked<clang::QualType>(llvm::Error&, clang::QualType const&) clang/lib/AST/ASTImporter.cpp:198:0 #22 clang::ASTNodeImporter::VisitFunctionDecl(clang::FunctionDecl*) clang/lib/AST/ASTImporter.cpp:3313:0 #23 clang::ASTNodeImporter::VisitCXXDeductionGuideDecl(clang::CXXDeductionGuideDecl*) clang/lib/AST/ASTImporter.cpp:3543:0 ``` The fix is to first create the TypedefDecl and only then start to import the DeclContext. Basically, we could do this during the import of all other Decls (not just for typedefs). But it seems, there is only one another AST construct that has a similar cycle: a struct defined as a function parameter: ``` int struct_in_proto(struct data_t{int a;int b;} *d); ``` In that case, however, we had decided to return simply with an error back then because that seemed to be a very rare construct. Differential Revision: https://reviews.llvm.org/D92209

@probinson

…rtial type llvm-dwarfdump crashed for Unit header with DW_UT_partial type. ------------- llvm-dwarfdump: /tmp/llvm/include/llvm/ADT/Optional.h:197: T& llvm::optional_detail::OptionalStorage<T, true>::getValue() & [with T = long unsigned int]: Assertion `hasVal' failed. PLEASE submit a bug report to the technical support section of https://developer.amd.com/amd-aocc and include the crash backtrace. Stack dump: 0. Program arguments: llvm-dwarfdump -v /tmp/test/DebugInfo/X86/Output/dwarfdump-he ader.s.tmp.o #0 0x00007f37d5ad8838 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /tmp/llvm/lib/Support/Unix/Signals.inc:565:0 #1 0x00007f37d5ad88ef PrintStackTraceSignalHandler(void*) /tmp/llvm/lib/Support/Unix/Signals.inc:632:0 #2 0x00007f37d5ad65bd llvm::sys::RunSignalHandlers() /tmp/llvm/lib/Support/Signals.cpp:71:0 #3 0x00007f37d5ad81b9 SignalHandler(int) /tmp/llvm/lib/Support/Unix/Signals.inc:407:0 #4 0x00007f37d4c26040 (/lib/x86_64-linux-gnu/libc.so.6+0x3f040) #5 0x00007f37d4c25fb7 raise /build/glibc-S9d2JN/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0 #6 0x00007f37d4c27921 abort /build/glibc-S9d2JN/glibc-2.27/stdlib/abort.c:81:0 #7 0x00007f37d4c1748a __assert_fail_base /build/glibc-S9d2JN/glibc-2.27/assert/assert.c:89:0 #8 0x00007f37d4c17502 (/lib/x86_64-linux-gnu/libc.so.6+0x30502) #9 0x00007f37d7576b81 llvm::optional_detail::OptionalStorage<unsigned long, true>::getValue() & /tmp/llvm/include/llvm/ADT/Optional.h:198:0 #10 0x00007f37d75726ac llvm::Optional<unsigned long>::operator*() && /tmp/llvm/include/llvm/ADT/Optional.h:309:0 #11 0x00007f37d7582968 llvm::DWARFCompileUnit::dump(llvm::raw_ostream&, llvm::DIDumpOptions) /tmp/llvm/lib/DebugInfo/DWARF/DWARFCompileUnit.cpp:30:0 -------------- Patch by: @jini.susan Reviewed By: @probinson Differential Revision: https://reviews.llvm.org/D101255

Rust's v0 name mangling scheme [1] is easy to disambiguate from other name mangling schemes because symbols always start with `_R`. The llvm Demangle library supports demangling the Rust v0 scheme. Use it to demangle Rust symbols. Added unit tests that check simple symbols. Ran LLDB built with this patch to debug some Rust programs compiled with the v0 name mangling scheme. Confirmed symbol names were demangled as expected. Note: enabling the new name mangling scheme requires a nightly toolchain: ``` $ cat main.rs fn main() { println!("Hello world!"); } $ $(rustup which --toolchain nightly rustc) -Z symbol-mangling-version=v0 main.rs -g $ /home/asm/hacking/llvm/build/bin/lldb ./main --one-line 'b main.rs:2' (lldb) target create "./main" Current executable set to '/home/asm/hacking/llvm/rust/main' (x86_64). (lldb) b main.rs:2 Breakpoint 1: where = main`main::main + 4 at main.rs:2:5, address = 0x00000000000076a4 (lldb) r Process 948449 launched: '/home/asm/hacking/llvm/rust/main' (x86_64) warning: (x86_64) /lib64/libgcc_s.so.1 No LZMA support found for reading .gnu_debugdata section Process 948449 stopped * thread #1, name = 'main', stop reason = breakpoint 1.1 frame #0: 0x000055555555b6a4 main`main::main at main.rs:2:5 1 fn main() { -> 2 println!("Hello world!"); 3 } (lldb) bt error: need to add support for DW_TAG_base_type '()' encoded with DW_ATE = 0x7, bit_size = 0 * thread #1, name = 'main', stop reason = breakpoint 1.1 * frame #0: 0x000055555555b6a4 main`main::main at main.rs:2:5 frame #1: 0x000055555555b78b main`<fn() as core::ops::function::FnOnce<()>>::call_once((null)=(main`main::main at main.rs:1), (null)=<unavailable>) at function.rs:227:5 frame #2: 0x000055555555b66e main`std::sys_common::backtrace::__rust_begin_short_backtrace::<fn(), ()>(f=(main`main::main at main.rs:1)) at backtrace.rs:125:18 frame #3: 0x000055555555b851 main`std::rt::lang_start::<()>::{closure#0} at rt.rs:49:18 frame #4: 0x000055555556c9f9 main`std::rt::lang_start_internal::hc51399759a90501a [inlined] core::ops::function::impls::_$LT$impl$u20$core..ops..function..FnOnce$LT$A$GT$$u20$for$u20$$RF$F$GT$::call_once::h04259e4a34d07c2f at function.rs:259:13 frame #5: 0x000055555556c9f2 main`std::rt::lang_start_internal::hc51399759a90501a [inlined] std::panicking::try::do_call::hb8da45704d5cfbbf at panicking.rs:401:40 frame #6: 0x000055555556c9f2 main`std::rt::lang_start_internal::hc51399759a90501a [inlined] std::panicking::try::h4beadc19a78fec52 at panicking.rs:365:19 frame #7: 0x000055555556c9f2 main`std::rt::lang_start_internal::hc51399759a90501a [inlined] std::panic::catch_unwind::hc58016cd36ba81a4 at panic.rs:433:14 frame #8: 0x000055555556c9f2 main`std::rt::lang_start_internal::hc51399759a90501a at rt.rs:34:21 frame #9: 0x000055555555b830 main`std::rt::lang_start::<()>(main=(main`main::main at main.rs:1), argc=1, argv=0x00007fffffffcb18) at rt.rs:48:5 frame #10: 0x000055555555b6fc main`main + 28 frame #11: 0x00007ffff73f2493 libc.so.6`__libc_start_main + 243 frame #12: 0x000055555555b59e main`_start + 46 (lldb) ``` [1]: rust-lang/rust#60705 Reviewed By: clayborg, teemperor Differential Revision: https://reviews.llvm.org/D104054

There is a SIGSEGV at `DeduceTemplateArgumentsByTypeMatch`. The bug [llvm#51171](https://bugs.llvm.org/show_bug.cgi?id=51171) was filled. The reproducer can be found at the bug description. LIT test for the issue was added: ``` ./bin/llvm-lit -v ../clang/test/SemaCXX/pr51171-crash.cpp ``` The debug stack trace is below: ``` #0 0x00000000055afcb9 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/ivanmurashko/local/llvm-project/llvm/lib/Support/Unix/Signals.inc:565:22 #1 0x00000000055afd70 PrintStackTraceSignalHandler(void*) /home/ivanmurashko/local/llvm-project/llvm/lib/Support/Unix/Signals.inc:632:1 #2 0x00000000055add2d llvm::sys::RunSignalHandlers() /home/ivanmurashko/local/llvm-project/llvm/lib/Support/Signals.cpp:97:20 #3 0x00000000055af701 SignalHandler(int) /home/ivanmurashko/local/llvm-project/llvm/lib/Support/Unix/Signals.inc:407:1 #4 0x00007ffff7bc2b20 __restore_rt sigaction.c:0:0 #5 0x00007ffff66a337f raise (/lib64/libc.so.6+0x3737f) #6 0x00007ffff668ddb5 abort (/lib64/libc.so.6+0x21db5) #7 0x00007ffff668dc89 _nl_load_domain.cold.0 loadmsgcat.c:0:0 #8 0x00007ffff669ba76 .annobin___GI___assert_fail.end assert.c:0:0 #9 0x000000000594b210 clang::QualType::getCommonPtr() const /home/ivanmurashko/local/llvm-project/clang/include/clang/AST/Type.h:684:5 #10 0x0000000005a12ca6 clang::QualType::getCanonicalType() const /home/ivanmurashko/local/llvm-project/clang/include/clang/AST/Type.h:6467:36 #11 0x0000000005a137a6 clang::ASTContext::getCanonicalType(clang::QualType) const /home/ivanmurashko/local/llvm-project/clang/include/clang/AST/ASTContext.h:2433:58 #12 0x0000000009204584 DeduceTemplateArgumentsByTypeMatch(clang::Sema&, clang::TemplateParameterList*, clang::QualType, clang::QualType, clang::sema::TemplateDeductionInfo&, llvm::SmallVectorImpl<clang::DeducedTemplateArgument>&, unsigned int, bool, bool) /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaTemplateDeduction.cpp:1355:54 #13 0x000000000920df0d clang::Sema::DeduceTemplateArguments(clang::FunctionTemplateDecl*, clang::TemplateArgumentListInfo*, clang::QualType, clang::FunctionDecl*&, clang::sema::TemplateDeductionInfo&, bool) /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaTemplateDeduction.cpp:4354:47 #14 0x0000000009012b09 (anonymous namespace)::AddressOfFunctionResolver::AddMatchingTemplateFunction(clang::FunctionTemplateDecl*, clang::DeclAccessPair const&) /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaOverload.cpp:12026:38 #15 0x0000000009013030 (anonymous namespace)::AddressOfFunctionResolver::FindAllFunctionsThatMatchTargetTypeExactly() /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaOverload.cpp:12119:9 #16 0x0000000009012679 (anonymous namespace)::AddressOfFunctionResolver::AddressOfFunctionResolver(clang::Sema&, clang::Expr*, clang::QualType const&, bool) /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaOverload.cpp:11931:5 #17 0x0000000009013c91 clang::Sema::ResolveAddressOfOverloadedFunction(clang::Expr*, clang::QualType, bool, clang::DeclAccessPair&, bool*) /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaOverload.cpp:12286:42 #18 0x0000000008fed85d IsStandardConversion(clang::Sema&, clang::Expr*, clang::QualType, bool, clang::StandardConversionSequence&, bool, bool) /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaOverload.cpp:1712:49 #19 0x0000000008fec8ea TryImplicitConversion(clang::Sema&, clang::Expr*, clang::QualType, bool, clang::Sema::AllowedExplicit, bool, bool, bool, bool) /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaOverload.cpp:1433:27 #20 0x0000000008ff90ba TryCopyInitialization(clang::Sema&, clang::Expr*, clang::QualType, bool, bool, bool, bool) /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaOverload.cpp:5273:71 #21 0x00000000090024fb clang::Sema::AddBuiltinCandidate(clang::QualType*, llvm::ArrayRef<clang::Expr*>, clang::OverloadCandidateSet&, bool, unsigned int) /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaOverload.cpp:7755:32 #22 0x000000000900513f (anonymous namespace)::BuiltinOperatorOverloadBuilder::addGenericBinaryArithmeticOverloads() /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaOverload.cpp:8633:30 #23 0x0000000009007624 clang::Sema::AddBuiltinOperatorCandidates(clang::OverloadedOperatorKind, clang::SourceLocation, llvm::ArrayRef<clang::Expr*>, clang::OverloadCandidateSet&) /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaOverload.cpp:9205:51 #24 0x0000000009018734 clang::Sema::LookupOverloadedBinOp(clang::OverloadCandidateSet&, clang::OverloadedOperatorKind, clang::UnresolvedSetImpl const&, llvm::ArrayRef<clang::Expr*>, bool) /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaOverload.cpp:13469:1 #25 0x0000000009018d56 clang::Sema::CreateOverloadedBinOp(clang::SourceLocation, clang::BinaryOperatorKind, clang::UnresolvedSetImpl const&, clang::Expr*, clang::Expr*, bool, bool, clang::FunctionDecl*) /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaOverload.cpp:13568:24 #26 0x0000000008b24797 BuildOverloadedBinOp(clang::Sema&, clang::Scope*, clang::SourceLocation, clang::BinaryOperatorKind, clang::Expr*, clang::Expr*) /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaExpr.cpp:14606:65 #27 0x0000000008b24ed5 clang::Sema::BuildBinOp(clang::Scope*, clang::SourceLocation, clang::BinaryOperatorKind, clang::Expr*, clang::Expr*) /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaExpr.cpp:14691:73 #28 0x0000000008b245d4 clang::Sema::ActOnBinOp(clang::Scope*, clang::SourceLocation, clang::tok::TokenKind, clang::Expr*, clang::Expr*) /home/ivanmurashko/local/llvm-project/clang/lib/Sema/SemaExpr.cpp:14566:1 #29 0x00000000085bfafb clang::Parser::ParseRHSOfBinaryExpression(clang::ActionResult<clang::Expr*, true>, clang::prec::Level) /home/ivanmurashko/local/llvm-project/clang/lib/Parse/ParseExpr.cpp:630:71 #30 0x00000000085bd922 clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState) /home/ivanmurashko/local/llvm-project/clang/lib/Parse/ParseExpr.cpp:177:1 #31 0x00000000085cbbcd clang::Parser::ParseExpressionList(llvm::SmallVectorImpl<clang::Expr*>&, llvm::SmallVectorImpl<clang::SourceLocation>&, llvm::function_ref<void ()>) /home/ivanmurashko/local/llvm-project/clang/lib/Parse/ParseExpr.cpp:3368:40 #32 0x000000000857f49c clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) /home/ivanmurashko/local/llvm-project/clang/lib/Parse/ParseDecl.cpp:2416:5 #33 0x000000000857df16 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::SourceLocation*, clang::Parser::ForRangeInit*) /home/ivanmurashko/local/llvm-project/clang/lib/Parse/ParseDecl.cpp:2092:65 #34 0x000000000855f07b clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributesWithRange&, clang::ParsingDeclSpec&, clang::AccessSpecifier) /home/ivanmurashko/local/llvm-project/clang/lib/Parse/Parser.cpp:1138:1 #35 0x000000000855f136 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributesWithRange&, clang::ParsingDeclSpec*, clang::AccessSpecifier) /home/ivanmurashko/local/llvm-project/clang/lib/Parse/Parser.cpp:1153:57 #36 0x000000000855e644 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributesWithRange&, clang::ParsingDeclSpec*) /home/ivanmurashko/local/llvm-project/clang/lib/Parse/Parser.cpp:975:58 #37 0x000000000855d717 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool) /home/ivanmurashko/local/llvm-project/clang/lib/Parse/Parser.cpp:720:42 #38 0x0000000008558e01 clang::ParseAST(clang::Sema&, bool, bool) /home/ivanmurashko/local/llvm-project/clang/lib/Parse/ParseAST.cpp:158:37 #39 0x000000000627a221 clang::ASTFrontendAction::ExecuteAction() /home/ivanmurashko/local/llvm-project/clang/lib/Frontend/FrontendAction.cpp:1058:11 #40 0x0000000006bdcc31 clang::CodeGenAction::ExecuteAction() /home/ivanmurashko/local/llvm-project/clang/lib/CodeGen/CodeGenAction.cpp:1045:5 #41 0x0000000006279b4d clang::FrontendAction::Execute() /home/ivanmurashko/local/llvm-project/clang/lib/Frontend/FrontendAction.cpp:955:38 #42 0x00000000061c3fe9 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) /home/ivanmurashko/local/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:974:42 #43 0x00000000063f9c5e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) /home/ivanmurashko/local/llvm-project/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:278:38 #44 0x0000000002603a03 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) /home/ivanmurashko/local/llvm-project/clang/tools/driver/cc1_main.cpp:246:40 #45 0x00000000025f8a39 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&) /home/ivanmurashko/local/llvm-project/clang/tools/driver/driver.cpp:338:20 #46 0x00000000025f9107 main /home/ivanmurashko/local/llvm-project/clang/tools/driver/driver.cpp:415:26 #47 0x00007ffff668f493 __libc_start_main (/lib64/libc.so.6+0x23493) #48 0x00000000025f729e _start (/data/users/ivanmurashko/llvm-project/build/bin/clang-13+0x25f729e) ``` Reviewed By: erichkeane Differential Revision: https://reviews.llvm.org/D106583

…D112621 It seems like `LHS` and `RHS` could be empty range sets. This caused an assertion failure inside RangeConstraintManager. I'm hoisting out the check from the function into the call-site. This way we could assert that we only want to deal with non-empty range sets. The relevant part of the trace: ``` #6 0x00007fe6ff5f81a6 __assert_fail_base (/lib64/libc.so.6+0x2f1a6) #7 0x00007fe6ff5f8252 (/lib64/libc.so.6+0x2f252) #8 0x00000000049caed2 (anonymous namespace)::SymbolicRangeInferrer::VisitBinaryOperator(clang::ento::RangeSet, clang::BinaryOperatorKind, clang::ento::RangeSet, clang::QualType) RangeConstraintManager.cpp:0:0 #9 0x00000000049c9867 (anonymous namespace)::SymbolicRangeInferrer::infer(clang::ento::SymExpr const*) RangeConstraintManager.cpp:0:0 #10 0x00000000049bebf5 (anonymous namespace)::RangeConstraintManager::assumeSymNE(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::ento::SymExpr const*, llvm::APSInt const&, llvm::APSInt const&) RangeConstraintManager.cpp:0:0 #11 0x00000000049d368c clang::ento::RangedConstraintManager::assumeSymUnsupported(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::ento::SymExpr const*, bool) (../../main-github/llvm/build-all/bin/clang+0x49d368c) #12 0x00000000049f0b09 clang::ento::SimpleConstraintManager::assumeAux(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::ento::NonLoc, bool) (../../main-github/llvm/build-all/bin/clang+0x49f0b09) #13 0x00000000049f096a clang::ento::SimpleConstraintManager::assume(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::ento::NonLoc, bool) (../../main-github/llvm/build-all/bin/clang+0x49f096a) #14 0x00000000049f086d clang::ento::SimpleConstraintManager::assumeInternal(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::ento::DefinedSVal, bool) (../../main-github/llvm/build-all/bin/clang+0x49f086d) #15 0x000000000492d3e3 clang::ento::ConstraintManager::assumeDual(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::ento::DefinedSVal) (../../main-github/llvm/build-all/bin/clang+0x492d3e3) #16 0x0000000004955b6d clang::ento::ExprEngine::evalEagerlyAssumeBinOpBifurcation(clang::ento::ExplodedNodeSet&, clang::ento::ExplodedNodeSet&, clang::Expr const*) (../../main-github/llvm/build-all/bin/clang+0x4955b6d) #17 0x00000000049514b6 clang::ento::ExprEngine::Visit(clang::Stmt const*, clang::ento::ExplodedNode*, clang::ento::ExplodedNodeSet&) (../../main-github/llvm/build-all/bin/clang+0x49514b6) #18 0x000000000494c73e clang::ento::ExprEngine::ProcessStmt(clang::Stmt const*, clang::ento::ExplodedNode*) (../../main-github/llvm/build-all/bin/clang+0x494c73e) #19 0x000000000494c459 clang::ento::ExprEngine::processCFGElement(clang::CFGElement, clang::ento::ExplodedNode*, unsigned int, clang::ento::NodeBuilderContext*) (../../main-github/llvm/build-all/bin/clang+0x494c459) #20 0x000000000492f3d0 clang::ento::CoreEngine::HandlePostStmt(clang::CFGBlock const*, unsigned int, clang::ento::ExplodedNode*) (../../main-github/llvm/build-all/bin/clang+0x492f3d0) #21 0x000000000492e1f6 clang::ento::CoreEngine::ExecuteWorkList(clang::LocationContext const*, unsigned int, llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>) (../../main-github/llvm/build-all/bin/clang+0x492e1f6) ``` Differential Revision: https://reviews.llvm.org/D112621

…D112621 It seems like `LHS` and `RHS` could be empty range sets. This caused an assertion failure inside RangeConstraintManager. I'm hoisting out the check from the function into the call-site. This way we could assert that we only want to deal with non-empty range sets. The relevant part of the trace: ``` swiftlang#6 0x00007fe6ff5f81a6 __assert_fail_base (/lib64/libc.so.6+0x2f1a6) swiftlang#7 0x00007fe6ff5f8252 (/lib64/libc.so.6+0x2f252) swiftlang#8 0x00000000049caed2 (anonymous namespace)::SymbolicRangeInferrer::VisitBinaryOperator(clang::ento::RangeSet, clang::BinaryOperatorKind, clang::ento::RangeSet, clang::QualType) RangeConstraintManager.cpp:0:0 swiftlang#9 0x00000000049c9867 (anonymous namespace)::SymbolicRangeInferrer::infer(clang::ento::SymExpr const*) RangeConstraintManager.cpp:0:0 swiftlang#10 0x00000000049bebf5 (anonymous namespace)::RangeConstraintManager::assumeSymNE(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::ento::SymExpr const*, llvm::APSInt const&, llvm::APSInt const&) RangeConstraintManager.cpp:0:0 swiftlang#11 0x00000000049d368c clang::ento::RangedConstraintManager::assumeSymUnsupported(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::ento::SymExpr const*, bool) (../../main-github/llvm/build-all/bin/clang+0x49d368c) swiftlang#12 0x00000000049f0b09 clang::ento::SimpleConstraintManager::assumeAux(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::ento::NonLoc, bool) (../../main-github/llvm/build-all/bin/clang+0x49f0b09) swiftlang#13 0x00000000049f096a clang::ento::SimpleConstraintManager::assume(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::ento::NonLoc, bool) (../../main-github/llvm/build-all/bin/clang+0x49f096a) swiftlang#14 0x00000000049f086d clang::ento::SimpleConstraintManager::assumeInternal(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::ento::DefinedSVal, bool) (../../main-github/llvm/build-all/bin/clang+0x49f086d) swiftlang#15 0x000000000492d3e3 clang::ento::ConstraintManager::assumeDual(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::ento::DefinedSVal) (../../main-github/llvm/build-all/bin/clang+0x492d3e3) swiftlang#16 0x0000000004955b6d clang::ento::ExprEngine::evalEagerlyAssumeBinOpBifurcation(clang::ento::ExplodedNodeSet&, clang::ento::ExplodedNodeSet&, clang::Expr const*) (../../main-github/llvm/build-all/bin/clang+0x4955b6d) swiftlang#17 0x00000000049514b6 clang::ento::ExprEngine::Visit(clang::Stmt const*, clang::ento::ExplodedNode*, clang::ento::ExplodedNodeSet&) (../../main-github/llvm/build-all/bin/clang+0x49514b6) swiftlang#18 0x000000000494c73e clang::ento::ExprEngine::ProcessStmt(clang::Stmt const*, clang::ento::ExplodedNode*) (../../main-github/llvm/build-all/bin/clang+0x494c73e) swiftlang#19 0x000000000494c459 clang::ento::ExprEngine::processCFGElement(clang::CFGElement, clang::ento::ExplodedNode*, unsigned int, clang::ento::NodeBuilderContext*) (../../main-github/llvm/build-all/bin/clang+0x494c459) swiftlang#20 0x000000000492f3d0 clang::ento::CoreEngine::HandlePostStmt(clang::CFGBlock const*, unsigned int, clang::ento::ExplodedNode*) (../../main-github/llvm/build-all/bin/clang+0x492f3d0) swiftlang#21 0x000000000492e1f6 clang::ento::CoreEngine::ExecuteWorkList(clang::LocationContext const*, unsigned int, llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>) (../../main-github/llvm/build-all/bin/clang+0x492e1f6) ``` Differential Revision: https://reviews.llvm.org/D112621 (cherry picked from commit f61a08b)

the swift branch. The function IRExecutionUnit::PopulateSymtab() is only implemented in swift-lldb. One thing it does is resolve any unresolved global symbols in the JIT module. This global search can cause the JIT module to recursively be asked for its symtab. This patch works around the problem by removing the JIT module from the list of modules being searched while in PopulateSymtab. That isn't done in the most elegant fashion, as it does so by changing the state of the IRExecutionUnit object. (lldb) bt * thread swiftlang#2, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP frame #0: 0x00007ff80dc2a0ce libsystem_kernel.dylib`__psynch_cvwait + 10 frame swiftlang#1: 0x00007ff80dc66758 libsystem_pthread.dylib`_pthread_cond_wait + 1242 frame swiftlang#2: 0x00007ff80dba51fd libc++.1.dylib`std::__1::__call_once(unsigned long volatile&, void*, void (*)(void*)) + 70 frame swiftlang#3: 0x000000014ff9235d LLDB`lldb_private::ObjectFile::GetSymtab() at mutex:676:9 [opt] * frame swiftlang#4: 0x000000014ff92334 LLDB`lldb_private::ObjectFile::GetSymtab() [inlined] void llvm::call_once<lldb_private::ObjectFile::GetSymtab()::$_0>(flag=<unavailable>, F=<unavailable>)::$_0&&) at Threading.h:89:5 [opt] frame swiftlang#5: 0x000000014ff92334 LLDB`lldb_private::ObjectFile::GetSymtab(this=0x0000600003d04f18) at ObjectFile.cpp:758:5 [opt] frame swiftlang#6: 0x0000000150531d67 LLDB`SymbolFileSymtab::CalculateAbilities(this=0x0000600003e20600) at SymbolFileSymtab.cpp:60:42 [opt] frame swiftlang#7: 0x000000015053001d LLDB`lldb_private::SymbolFileCommon::GetAbilities(this=0x0000600003e20600) at SymbolFile.h:478:21 [opt] frame swiftlang#8: 0x000000014ff9a8cd LLDB`lldb_private::SymbolFile::FindPlugin(objfile_sp=std::__1::shared_ptr<lldb_private::ObjectFile>::element_type @ 0x0000600003d04f18 strong=7 weak=2) at SymbolFile.cpp:71:62 [opt] frame swiftlang#9: 0x000000014ff9f4bd LLDB`lldb_private::SymbolVendor::AddSymbolFileRepresentation(this=0x00006000002b05a0, objfile_sp=std::__1::shared_ptr<lldb_private::ObjectFile>::element_type @ 0x0000600003d04f18 strong=7 weak=2) at SymbolVendor.cpp:71:27 [opt] frame swiftlang#10: 0x000000014ff9f419 LLDB`lldb_private::SymbolVendor::FindPlugin(module_sp=std::__1::shared_ptr<lldb_private::Module>::element_type @ 0x0000000106589ca0 strong=12 weak=26, feedback_strm=0x0000000000000000) at SymbolVendor.cpp:57:16 [opt] frame swiftlang#11: 0x000000014fe8d2a0 LLDB`lldb_private::Module::GetSymbolFile(this=0x0000000106589ca0, can_create=<unavailable>, feedback_strm=0x0000000000000000) at Module.cpp:1083:13 [opt] frame swiftlang#12: 0x000000014fe8c4c0 LLDB`lldb_private::Module::FindFunctions(lldb_private::ConstString, lldb_private::CompilerDeclContext const&, lldb::FunctionNameType, lldb_private::ModuleFunctionSearchOptions const&, lldb_private::SymbolContextList&) at Module.cpp:857:29 [opt] frame swiftlang#13: 0x000000014fe8c4b0 LLDB`lldb_private::Module::FindFunctions(this=0x0000000106589ca0, name=<unavailable>, parent_decl_ctx=0x00007ff7bfef98d0, name_type_mask=eFunctionNameTypeFull, options=0x00007ff7bfef9990, sc_list=0x00007ff7bfef9960) at Module.cpp:878:3 [opt] frame swiftlang#14: 0x000000014fe92ba1 LLDB`lldb_private::ModuleList::FindFunctions(this=<unavailable>, name=<unavailable>, name_type_mask=<unavailable>, options=0x00007ff7bfef9990, sc_list=0x00007ff7bfef9960) const at ModuleList.cpp:554:18 [opt] frame swiftlang#15: 0x000000014fef36cb LLDB`lldb_private::IRExecutionUnit::FindInSymbols(this=<unavailable>, names=<unavailable>, sc=0x00000001004db950, symbol_was_missing_weak=<unavailable>) at IRExecutionUnit.cpp:843:33 [opt] frame swiftlang#16: 0x000000014fef3c36 LLDB`lldb_private::IRExecutionUnit::FindSymbol(this=0x00000001004db860, name=<unavailable>, missing_weak=0x00007ff7bfef9a97) at IRExecutionUnit.cpp:915:22 [opt] frame swiftlang#17: 0x000000014fef43f3 LLDB`lldb_private::IRExecutionUnit::MemoryManager::GetSymbolAddressAndPresence(this=0x0000000107c71000, Name="_$sBoWV", missing_weak=0x00007ff7bfef9a97) at IRExecutionUnit.cpp:1010:31 [opt] frame swiftlang#18: 0x000000014fef4490 LLDB`non-virtual thunk to lldb_private::IRExecutionUnit::MemoryManager::findSymbol(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) [inlined] lldb_private::IRExecutionUnit::MemoryManager::findSymbol(this=<unavailable>, Name=<unavailable>) at IRExecutionUnit.cpp:988:21 [opt] frame swiftlang#19: 0x000000014fef447d LLDB`non-virtual thunk to lldb_private::IRExecutionUnit::MemoryManager::findSymbol(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) at IRExecutionUnit.cpp:0 [opt] frame swiftlang#20: 0x0000000154ab3a5c LLDB`llvm::LinkingSymbolResolver::findSymbol(this=0x0000000107e0ecc0, Name="_$sBoWV") at MCJIT.cpp:681:26 [opt] frame swiftlang#21: 0x0000000154abd458 LLDB`llvm::LegacyJITSymbolResolver::lookup(this=<unavailable>, Symbols=<unavailable>, OnResolved=<unavailable>)>) at JITSymbol.cpp:125:22 [opt] frame swiftlang#22: 0x0000000154abf6f3 LLDB`llvm::RuntimeDyldImpl::resolveExternalSymbols(this=0x000000013cfeea20) at RuntimeDyld.cpp:1195:16 [opt] frame swiftlang#23: 0x0000000154abecde LLDB`llvm::RuntimeDyldImpl::resolveRelocations(this=0x000000013cfeea20) at RuntimeDyld.cpp:131:18 [opt] frame swiftlang#24: 0x0000000154ab1482 LLDB`llvm::MCJIT::finalizeLoadedModules(this=0x0000000107e0ea00) at MCJIT.cpp:242:8 [opt] frame swiftlang#25: 0x0000000154ab24ec LLDB`llvm::MCJIT::getGlobalValueAddress(this=0x0000000107e0ea00, Name=<unavailable>) at MCJIT.cpp:400:5 [opt] frame swiftlang#26: 0x000000014fef499d LLDB`lldb_private::IRExecutionUnit::PopulateSymtab(this=0x00000001004db860, obj_file=<unavailable>, symtab=0x0000600003342f80) at IRExecutionUnit.cpp:1246:34 [opt] frame swiftlang#27: 0x00000001503e4bf1 LLDB`ObjectFileJIT::ParseSymtab(this=0x0000600003d04f18, symtab=0x0000600003342f80) at ObjectFileJIT.cpp:112:18 [opt] frame swiftlang#28: 0x000000014ff93a14 LLDB`void std::__1::__call_once_proxy<std::__1::tuple<lldb_private::ObjectFile::GetSymtab()::$_0&&> >(void*) at ObjectFile.cpp:764:9 [opt] frame swiftlang#29: 0x000000014ff93998 LLDB`void std::__1::__call_once_proxy<std::__1::tuple<lldb_private::ObjectFile::GetSymtab()::$_0&&> >(void*) [inlined] decltype(__f=0x00007ff7bfefa180)::$_0>(fp)()) std::__1::__invoke<lldb_private::ObjectFile::GetSymtab()::$_0>(lldb_private::ObjectFile::GetSymtab()::$_0&&) at type_traits:3918:1 [opt] frame swiftlang#30: 0x000000014ff93998 LLDB`void std::__1::__call_once_proxy<std::__1::tuple<lldb_private::ObjectFile::GetSymtab()::$_0&&> >(void*) [inlined] void std::__1::__call_once_param<std::__1::tuple<lldb_private::ObjectFile::GetSymtab()::$_0&&> >::__execute<>(this=<unavailable>, (null)=<unavailable>) at mutex:630:9 [opt] frame swiftlang#31: 0x000000014ff93984 LLDB`void std::__1::__call_once_proxy<std::__1::tuple<lldb_private::ObjectFile::GetSymtab()::$_0&&> >(void*) [inlined] std::__1::__call_once_param<std::__1::tuple<lldb_private::ObjectFile::GetSymtab()::$_0&&> >::operator(this=<unavailable>)() at mutex:622:9 [opt] frame swiftlang#32: 0x000000014ff93984 LLDB`void std::__1::__call_once_proxy<std::__1::tuple<lldb_private::ObjectFile::GetSymtab()::$_0&&> >(__vp=<unavailable>) at mutex:658:5 [opt] frame swiftlang#33: 0x00007ff80dba5242 libc++.1.dylib`std::__1::__call_once(unsigned long volatile&, void*, void (*)(void*)) + 139 frame swiftlang#34: 0x000000014ff9235d LLDB`lldb_private::ObjectFile::GetSymtab() at mutex:676:9 [opt] frame swiftlang#35: 0x000000014ff92334 LLDB`lldb_private::ObjectFile::GetSymtab() [inlined] void llvm::call_once<lldb_private::ObjectFile::GetSymtab()::$_0>(flag=<unavailable>, F=<unavailable>)::$_0&&) at Threading.h:89:5 [opt] frame swiftlang#36: 0x000000014ff92334 LLDB`lldb_private::ObjectFile::GetSymtab(this=0x0000600003d04f18) at ObjectFile.cpp:758:5 [opt] frame swiftlang#37: 0x0000000150531d67 LLDB`SymbolFileSymtab::CalculateAbilities(this=0x0000600003e20100) at SymbolFileSymtab.cpp:60:42 [opt] frame swiftlang#38: 0x000000015053001d LLDB`lldb_private::SymbolFileCommon::GetAbilities(this=0x0000600003e20100) at SymbolFile.h:478:21 [opt] frame swiftlang#39: 0x000000014ff9a8cd LLDB`lldb_private::SymbolFile::FindPlugin(objfile_sp=std::__1::shared_ptr<lldb_private::ObjectFile>::element_type @ 0x0000600003d04f18 strong=7 weak=2) at SymbolFile.cpp:71:62 [opt] frame swiftlang#40: 0x000000014ff9f4bd LLDB`lldb_private::SymbolVendor::AddSymbolFileRepresentation(this=0x00006000002b0560, objfile_sp=std::__1::shared_ptr<lldb_private::ObjectFile>::element_type @ 0x0000600003d04f18 strong=7 weak=2) at SymbolVendor.cpp:71:27 [opt] frame swiftlang#41: 0x000000014ff9f419 LLDB`lldb_private::SymbolVendor::FindPlugin(module_sp=std::__1::shared_ptr<lldb_private::Module>::element_type @ 0x0000000106589ca0 strong=12 weak=26, feedback_strm=0x0000000000000000) at SymbolVendor.cpp:57:16 [opt] frame swiftlang#42: 0x000000014fe8d2a0 LLDB`lldb_private::Module::GetSymbolFile(this=0x0000000106589ca0, can_create=<unavailable>, feedback_strm=0x0000000000000000) at Module.cpp:1083:13 [opt] frame swiftlang#43: 0x000000015041f366 LLDB`lldb_private::PlatformDarwin::LocateExecutableScriptingResources(this=<unavailable>, target=0x000000010309e800, module=0x0000000106589ca0, feedback_stream=0x00007ff7bfefa770) at PlatformDarwin.cpp:212:40 [opt] frame swiftlang#44: 0x000000014fe8f97c LLDB`lldb_private::Module::LoadScriptingResourceInTarget(this=<unavailable>, target=0x000000010309e800, error=0x00007ff7bfefa750, feedback_stream=<unavailable>) at Module.cpp:1588:44 [opt] frame swiftlang#45: 0x0000000150027520 LLDB`lldb_private::Target::ModulesDidLoad(lldb_private::ModuleList&) [inlined] LoadScriptingResourceForModule(module_sp=<unavailable>, target=0x000000010309e800) at Target.cpp:1415:32 [opt] frame swiftlang#46: 0x00000001500274f4 LLDB`lldb_private::Target::ModulesDidLoad(this=0x000000010309e800, module_list=<unavailable>) at Target.cpp:1672:7 [opt] frame swiftlang#47: 0x00000001500284ca LLDB`non-virtual thunk to lldb_private::Target::NotifyModuleAdded(lldb_private::ModuleList const&, std::__1::shared_ptr<lldb_private::Module> const&) at Target.cpp:1637:5 [opt] frame swiftlang#48: 0x00000001500284a7 LLDB`non-virtual thunk to lldb_private::Target::NotifyModuleAdded(lldb_private::ModuleList const&, std::__1::shared_ptr<lldb_private::Module> const&) at Target.cpp:0 [opt] frame swiftlang#49: 0x000000014fe91f8b LLDB`lldb_private::ModuleList::Append(std::__1::shared_ptr<lldb_private::Module> const&, bool) at ModuleList.cpp:334:19 [opt] frame swiftlang#50: 0x000000014fe91f44 LLDB`lldb_private::ModuleList::Append(this=0x000000010309eb48, module_sp=std::__1::shared_ptr<lldb_private::Module>::element_type @ 0x0000000106589ca0 strong=12 weak=26, notify=<unavailable>) at ModuleList.cpp:339:3 [opt] frame swiftlang#51: 0x000000014fef5200 LLDB`lldb_private::IRExecutionUnit::CreateJITModule(this=<unavailable>, name="$__lldb_expr2") at IRExecutionUnit.cpp:1339:27 [opt] frame swiftlang#52: 0x000000015011063b LLDB`lldb_private::SwiftUserExpression::Parse(this=<unavailable>, diagnostic_manager=<unavailable>, exe_ctx=<unavailable>, execution_policy=eExecutionPolicyOnlyWhenNeeded, keep_result_in_memory=<unavailable>, generate_debug_info=<unavailable>) at SwiftUserExpression.cpp:802:28 [opt] frame swiftlang#53: 0x000000014ff0cd05 LLDB`lldb_private::UserExpression::Evaluate(exe_ctx=<unavailable>, options=0x00006000033441e0, expr="", prefix="", result_valobj_sp=nullptr, error=0x00007ff7bfefaf40, fixed_expression=Summary Unavailable, ctx_obj=0x0000000000000000) at UserExpression.cpp:281:27 [opt] frame swiftlang#54: 0x000000015002e124 LLDB`lldb_private::Target::EvaluateExpression(this=0x000000010309e800, expr="", exe_scope=<unavailable>, result_valobj_sp=nullptr, options=<unavailable>, fixed_expression=Summary Unavailable, ctx_obj=0x0000000000000000) at Target.cpp:2960:25 [opt] frame swiftlang#55: 0x000000014fcc3e62 LLDB`lldb::SBFrame::EvaluateExpression(this=<unavailable>, expr=<unavailable>, options=0x0000600000011880) at SBFrame.cpp:1084:17 [opt] frame swiftlang#56: 0x000000014fdaaf70 LLDB`_wrap_SBFrame_EvaluateExpression(_object*, _object*) at LLDBWrapPython.cpp:32887:22 [opt] frame swiftlang#57: 0x000000014fdaaebf LLDB`_wrap_SBFrame_EvaluateExpression(self=<unavailable>, args=<unavailable>) at LLDBWrapPython.cpp:32933:18 [opt]

the swift branch. The function IRExecutionUnit::PopulateSymtab() is only implemented in swift-lldb. One thing it does is resolve any unresolved global symbols in the JIT module. This global search can cause the JIT module to recursively be asked for its symtab. This patch works around the problem by removing the JIT module from the list of modules being searched while in PopulateSymtab. That isn't done in the most elegant fashion, as it does so by changing the state of the IRExecutionUnit object. (lldb) bt * thread swiftlang#2, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP frame #0: 0x00007ff80dc2a0ce libsystem_kernel.dylib`__psynch_cvwait + 10 frame swiftlang#1: 0x00007ff80dc66758 libsystem_pthread.dylib`_pthread_cond_wait + 1242 frame swiftlang#2: 0x00007ff80dba51fd libc++.1.dylib`std::__1::__call_once(unsigned long volatile&, void*, void (*)(void*)) + 70 frame swiftlang#3: 0x000000014ff9235d LLDB`lldb_private::ObjectFile::GetSymtab() at mutex:676:9 [opt] * frame swiftlang#4: 0x000000014ff92334 LLDB`lldb_private::ObjectFile::GetSymtab() [inlined] void llvm::call_once<lldb_private::ObjectFile::GetSymtab()::$_0>(flag=<unavailable>, F=<unavailable>)::$_0&&) at Threading.h:89:5 [opt] frame swiftlang#5: 0x000000014ff92334 LLDB`lldb_private::ObjectFile::GetSymtab(this=0x0000600003d04f18) at ObjectFile.cpp:758:5 [opt] frame swiftlang#6: 0x0000000150531d67 LLDB`SymbolFileSymtab::CalculateAbilities(this=0x0000600003e20600) at SymbolFileSymtab.cpp:60:42 [opt] frame swiftlang#7: 0x000000015053001d LLDB`lldb_private::SymbolFileCommon::GetAbilities(this=0x0000600003e20600) at SymbolFile.h:478:21 [opt] frame swiftlang#8: 0x000000014ff9a8cd LLDB`lldb_private::SymbolFile::FindPlugin(objfile_sp=std::__1::shared_ptr<lldb_private::ObjectFile>::element_type @ 0x0000600003d04f18 strong=7 weak=2) at SymbolFile.cpp:71:62 [opt] frame swiftlang#9: 0x000000014ff9f4bd LLDB`lldb_private::SymbolVendor::AddSymbolFileRepresentation(this=0x00006000002b05a0, objfile_sp=std::__1::shared_ptr<lldb_private::ObjectFile>::element_type @ 0x0000600003d04f18 strong=7 weak=2) at SymbolVendor.cpp:71:27 [opt] frame swiftlang#10: 0x000000014ff9f419 LLDB`lldb_private::SymbolVendor::FindPlugin(module_sp=std::__1::shared_ptr<lldb_private::Module>::element_type @ 0x0000000106589ca0 strong=12 weak=26, feedback_strm=0x0000000000000000) at SymbolVendor.cpp:57:16 [opt] frame swiftlang#11: 0x000000014fe8d2a0 LLDB`lldb_private::Module::GetSymbolFile(this=0x0000000106589ca0, can_create=<unavailable>, feedback_strm=0x0000000000000000) at Module.cpp:1083:13 [opt] frame swiftlang#12: 0x000000014fe8c4c0 LLDB`lldb_private::Module::FindFunctions(lldb_private::ConstString, lldb_private::CompilerDeclContext const&, lldb::FunctionNameType, lldb_private::ModuleFunctionSearchOptions const&, lldb_private::SymbolContextList&) at Module.cpp:857:29 [opt] frame swiftlang#13: 0x000000014fe8c4b0 LLDB`lldb_private::Module::FindFunctions(this=0x0000000106589ca0, name=<unavailable>, parent_decl_ctx=0x00007ff7bfef98d0, name_type_mask=eFunctionNameTypeFull, options=0x00007ff7bfef9990, sc_list=0x00007ff7bfef9960) at Module.cpp:878:3 [opt] frame swiftlang#14: 0x000000014fe92ba1 LLDB`lldb_private::ModuleList::FindFunctions(this=<unavailable>, name=<unavailable>, name_type_mask=<unavailable>, options=0x00007ff7bfef9990, sc_list=0x00007ff7bfef9960) const at ModuleList.cpp:554:18 [opt] frame swiftlang#15: 0x000000014fef36cb LLDB`lldb_private::IRExecutionUnit::FindInSymbols(this=<unavailable>, names=<unavailable>, sc=0x00000001004db950, symbol_was_missing_weak=<unavailable>) at IRExecutionUnit.cpp:843:33 [opt] frame swiftlang#16: 0x000000014fef3c36 LLDB`lldb_private::IRExecutionUnit::FindSymbol(this=0x00000001004db860, name=<unavailable>, missing_weak=0x00007ff7bfef9a97) at IRExecutionUnit.cpp:915:22 [opt] frame swiftlang#17: 0x000000014fef43f3 LLDB`lldb_private::IRExecutionUnit::MemoryManager::GetSymbolAddressAndPresence(this=0x0000000107c71000, Name="_$sBoWV", missing_weak=0x00007ff7bfef9a97) at IRExecutionUnit.cpp:1010:31 [opt] frame swiftlang#18: 0x000000014fef4490 LLDB`non-virtual thunk to lldb_private::IRExecutionUnit::MemoryManager::findSymbol(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) [inlined] lldb_private::IRExecutionUnit::MemoryManager::findSymbol(this=<unavailable>, Name=<unavailable>) at IRExecutionUnit.cpp:988:21 [opt] frame swiftlang#19: 0x000000014fef447d LLDB`non-virtual thunk to lldb_private::IRExecutionUnit::MemoryManager::findSymbol(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) at IRExecutionUnit.cpp:0 [opt] frame swiftlang#20: 0x0000000154ab3a5c LLDB`llvm::LinkingSymbolResolver::findSymbol(this=0x0000000107e0ecc0, Name="_$sBoWV") at MCJIT.cpp:681:26 [opt] frame swiftlang#21: 0x0000000154abd458 LLDB`llvm::LegacyJITSymbolResolver::lookup(this=<unavailable>, Symbols=<unavailable>, OnResolved=<unavailable>)>) at JITSymbol.cpp:125:22 [opt] frame swiftlang#22: 0x0000000154abf6f3 LLDB`llvm::RuntimeDyldImpl::resolveExternalSymbols(this=0x000000013cfeea20) at RuntimeDyld.cpp:1195:16 [opt] frame swiftlang#23: 0x0000000154abecde LLDB`llvm::RuntimeDyldImpl::resolveRelocations(this=0x000000013cfeea20) at RuntimeDyld.cpp:131:18 [opt] frame swiftlang#24: 0x0000000154ab1482 LLDB`llvm::MCJIT::finalizeLoadedModules(this=0x0000000107e0ea00) at MCJIT.cpp:242:8 [opt] frame swiftlang#25: 0x0000000154ab24ec LLDB`llvm::MCJIT::getGlobalValueAddress(this=0x0000000107e0ea00, Name=<unavailable>) at MCJIT.cpp:400:5 [opt] frame swiftlang#26: 0x000000014fef499d LLDB`lldb_private::IRExecutionUnit::PopulateSymtab(this=0x00000001004db860, obj_file=<unavailable>, symtab=0x0000600003342f80) at IRExecutionUnit.cpp:1246:34 [opt] frame swiftlang#27: 0x00000001503e4bf1 LLDB`ObjectFileJIT::ParseSymtab(this=0x0000600003d04f18, symtab=0x0000600003342f80) at ObjectFileJIT.cpp:112:18 [opt] frame swiftlang#28: 0x000000014ff93a14 LLDB`void std::__1::__call_once_proxy<std::__1::tuple<lldb_private::ObjectFile::GetSymtab()::$_0&&> >(void*) at ObjectFile.cpp:764:9 [opt] frame swiftlang#29: 0x000000014ff93998 LLDB`void std::__1::__call_once_proxy<std::__1::tuple<lldb_private::ObjectFile::GetSymtab()::$_0&&> >(void*) [inlined] decltype(__f=0x00007ff7bfefa180)::$_0>(fp)()) std::__1::__invoke<lldb_private::ObjectFile::GetSymtab()::$_0>(lldb_private::ObjectFile::GetSymtab()::$_0&&) at type_traits:3918:1 [opt] frame swiftlang#30: 0x000000014ff93998 LLDB`void std::__1::__call_once_proxy<std::__1::tuple<lldb_private::ObjectFile::GetSymtab()::$_0&&> >(void*) [inlined] void std::__1::__call_once_param<std::__1::tuple<lldb_private::ObjectFile::GetSymtab()::$_0&&> >::__execute<>(this=<unavailable>, (null)=<unavailable>) at mutex:630:9 [opt] frame swiftlang#31: 0x000000014ff93984 LLDB`void std::__1::__call_once_proxy<std::__1::tuple<lldb_private::ObjectFile::GetSymtab()::$_0&&> >(void*) [inlined] std::__1::__call_once_param<std::__1::tuple<lldb_private::ObjectFile::GetSymtab()::$_0&&> >::operator(this=<unavailable>)() at mutex:622:9 [opt] frame swiftlang#32: 0x000000014ff93984 LLDB`void std::__1::__call_once_proxy<std::__1::tuple<lldb_private::ObjectFile::GetSymtab()::$_0&&> >(__vp=<unavailable>) at mutex:658:5 [opt] frame swiftlang#33: 0x00007ff80dba5242 libc++.1.dylib`std::__1::__call_once(unsigned long volatile&, void*, void (*)(void*)) + 139 frame swiftlang#34: 0x000000014ff9235d LLDB`lldb_private::ObjectFile::GetSymtab() at mutex:676:9 [opt] frame swiftlang#35: 0x000000014ff92334 LLDB`lldb_private::ObjectFile::GetSymtab() [inlined] void llvm::call_once<lldb_private::ObjectFile::GetSymtab()::$_0>(flag=<unavailable>, F=<unavailable>)::$_0&&) at Threading.h:89:5 [opt] frame swiftlang#36: 0x000000014ff92334 LLDB`lldb_private::ObjectFile::GetSymtab(this=0x0000600003d04f18) at ObjectFile.cpp:758:5 [opt] frame swiftlang#37: 0x0000000150531d67 LLDB`SymbolFileSymtab::CalculateAbilities(this=0x0000600003e20100) at SymbolFileSymtab.cpp:60:42 [opt] frame swiftlang#38: 0x000000015053001d LLDB`lldb_private::SymbolFileCommon::GetAbilities(this=0x0000600003e20100) at SymbolFile.h:478:21 [opt] frame swiftlang#39: 0x000000014ff9a8cd LLDB`lldb_private::SymbolFile::FindPlugin(objfile_sp=std::__1::shared_ptr<lldb_private::ObjectFile>::element_type @ 0x0000600003d04f18 strong=7 weak=2) at SymbolFile.cpp:71:62 [opt] frame swiftlang#40: 0x000000014ff9f4bd LLDB`lldb_private::SymbolVendor::AddSymbolFileRepresentation(this=0x00006000002b0560, objfile_sp=std::__1::shared_ptr<lldb_private::ObjectFile>::element_type @ 0x0000600003d04f18 strong=7 weak=2) at SymbolVendor.cpp:71:27 [opt] frame swiftlang#41: 0x000000014ff9f419 LLDB`lldb_private::SymbolVendor::FindPlugin(module_sp=std::__1::shared_ptr<lldb_private::Module>::element_type @ 0x0000000106589ca0 strong=12 weak=26, feedback_strm=0x0000000000000000) at SymbolVendor.cpp:57:16 [opt] frame swiftlang#42: 0x000000014fe8d2a0 LLDB`lldb_private::Module::GetSymbolFile(this=0x0000000106589ca0, can_create=<unavailable>, feedback_strm=0x0000000000000000) at Module.cpp:1083:13 [opt] frame swiftlang#43: 0x000000015041f366 LLDB`lldb_private::PlatformDarwin::LocateExecutableScriptingResources(this=<unavailable>, target=0x000000010309e800, module=0x0000000106589ca0, feedback_stream=0x00007ff7bfefa770) at PlatformDarwin.cpp:212:40 [opt] frame swiftlang#44: 0x000000014fe8f97c LLDB`lldb_private::Module::LoadScriptingResourceInTarget(this=<unavailable>, target=0x000000010309e800, error=0x00007ff7bfefa750, feedback_stream=<unavailable>) at Module.cpp:1588:44 [opt] frame swiftlang#45: 0x0000000150027520 LLDB`lldb_private::Target::ModulesDidLoad(lldb_private::ModuleList&) [inlined] LoadScriptingResourceForModule(module_sp=<unavailable>, target=0x000000010309e800) at Target.cpp:1415:32 [opt] frame swiftlang#46: 0x00000001500274f4 LLDB`lldb_private::Target::ModulesDidLoad(this=0x000000010309e800, module_list=<unavailable>) at Target.cpp:1672:7 [opt] frame swiftlang#47: 0x00000001500284ca LLDB`non-virtual thunk to lldb_private::Target::NotifyModuleAdded(lldb_private::ModuleList const&, std::__1::shared_ptr<lldb_private::Module> const&) at Target.cpp:1637:5 [opt] frame swiftlang#48: 0x00000001500284a7 LLDB`non-virtual thunk to lldb_private::Target::NotifyModuleAdded(lldb_private::ModuleList const&, std::__1::shared_ptr<lldb_private::Module> const&) at Target.cpp:0 [opt] frame swiftlang#49: 0x000000014fe91f8b LLDB`lldb_private::ModuleList::Append(std::__1::shared_ptr<lldb_private::Module> const&, bool) at ModuleList.cpp:334:19 [opt] frame swiftlang#50: 0x000000014fe91f44 LLDB`lldb_private::ModuleList::Append(this=0x000000010309eb48, module_sp=std::__1::shared_ptr<lldb_private::Module>::element_type @ 0x0000000106589ca0 strong=12 weak=26, notify=<unavailable>) at ModuleList.cpp:339:3 [opt] frame swiftlang#51: 0x000000014fef5200 LLDB`lldb_private::IRExecutionUnit::CreateJITModule(this=<unavailable>, name="$__lldb_expr2") at IRExecutionUnit.cpp:1339:27 [opt] frame swiftlang#52: 0x000000015011063b LLDB`lldb_private::SwiftUserExpression::Parse(this=<unavailable>, diagnostic_manager=<unavailable>, exe_ctx=<unavailable>, execution_policy=eExecutionPolicyOnlyWhenNeeded, keep_result_in_memory=<unavailable>, generate_debug_info=<unavailable>) at SwiftUserExpression.cpp:802:28 [opt] frame swiftlang#53: 0x000000014ff0cd05 LLDB`lldb_private::UserExpression::Evaluate(exe_ctx=<unavailable>, options=0x00006000033441e0, expr="", prefix="", result_valobj_sp=nullptr, error=0x00007ff7bfefaf40, fixed_expression=Summary Unavailable, ctx_obj=0x0000000000000000) at UserExpression.cpp:281:27 [opt] frame swiftlang#54: 0x000000015002e124 LLDB`lldb_private::Target::EvaluateExpression(this=0x000000010309e800, expr="", exe_scope=<unavailable>, result_valobj_sp=nullptr, options=<unavailable>, fixed_expression=Summary Unavailable, ctx_obj=0x0000000000000000) at Target.cpp:2960:25 [opt] frame swiftlang#55: 0x000000014fcc3e62 LLDB`lldb::SBFrame::EvaluateExpression(this=<unavailable>, expr=<unavailable>, options=0x0000600000011880) at SBFrame.cpp:1084:17 [opt] frame swiftlang#56: 0x000000014fdaaf70 LLDB`_wrap_SBFrame_EvaluateExpression(_object*, _object*) at LLDBWrapPython.cpp:32887:22 [opt] frame swiftlang#57: 0x000000014fdaaebf LLDB`_wrap_SBFrame_EvaluateExpression(self=<unavailable>, args=<unavailable>) at LLDBWrapPython.cpp:32933:18 [opt] (cherry picked from commit ba81700)

This change prevents rare deadlocks observed for specific macOS/iOS GUI applications which issue many `dlopen()` calls from multiple different threads at startup and where TSan finds and reports a race during startup. Providing a reliable test for this has been deemed infeasible. Although I've only observed this deadlock on Apple platforms, conceptually the cause is not confined to Apple code so the fix lives in platform-independent code. Deadlock scenario: ``` Thread 2 | Thread 4 ReportRace() | Lock internal TSan mutexes | &ctx->slot_mtx | | dlopen() interceptor | OnLibraryLoaded() | MemoryMappingLayout::DumpListOfModules() | calls dyld API, which takes internal lock | lock() interceptor | TSan tries to take internal mutexes again | &ctx->slot_mtx call into symbolizer | MemoryMappingLayout::DumpListOfModules() calls dyld API, which hangs on trying to take lock ``` Resulting in: * Thread 2 has internal TSan mutex, blocked on dyld lock * Thread 4 has dyld lock, blocked on internal TSan mutex The fix prevents this situation by not intercepting any of the calls originating from `MemoryMappingLayout::DumpListOfModules()`. Stack traces for deadlock between ReportRace() and dlopen() interceptor: ``` thread #2, queue = 'com.apple.root.default-qos' frame #0: libsystem_kernel.dylib frame #1: libclang_rt.tsan_osx_dynamic.dylib`::wrap_os_unfair_lock_lock_with_options(lock=<unavailable>, options=<unavailable>) at tsan_interceptors_mac.cpp:306:3 frame #2: dyld`dyld4::RuntimeLocks::withLoadersReadLock(this=0x000000016f21b1e0, work=0x00000001814523c0) block_pointer) at DyldRuntimeState.cpp:227:28 frame #3: dyld`dyld4::APIs::_dyld_get_image_header(this=0x0000000101012a20, imageIndex=614) at DyldAPIs.cpp:240:11 frame #4: libclang_rt.tsan_osx_dynamic.dylib`__sanitizer::MemoryMappingLayout::CurrentImageHeader(this=<unavailable>) at sanitizer_procmaps_mac.cpp:391:35 frame #5: libclang_rt.tsan_osx_dynamic.dylib`__sanitizer::MemoryMappingLayout::Next(this=0x000000016f2a2800, segment=0x000000016f2a2738) at sanitizer_procmaps_mac.cpp:397:51 frame #6: libclang_rt.tsan_osx_dynamic.dylib`__sanitizer::MemoryMappingLayout::DumpListOfModules(this=0x000000016f2a2800, modules=0x00000001011000a0) at sanitizer_procmaps_mac.cpp:460:10 frame #7: libclang_rt.tsan_osx_dynamic.dylib`__sanitizer::ListOfModules::init(this=0x00000001011000a0) at sanitizer_mac.cpp:610:18 frame #8: libclang_rt.tsan_osx_dynamic.dylib`__sanitizer::Symbolizer::FindModuleForAddress(unsigned long) [inlined] __sanitizer::Symbolizer::RefreshModules(this=0x0000000101100078) at sanitizer_symbolizer_libcdep.cpp:185:12 frame #9: libclang_rt.tsan_osx_dynamic.dylib`__sanitizer::Symbolizer::FindModuleForAddress(this=0x0000000101100078, address=6465454512) at sanitizer_symbolizer_libcdep.cpp:204:5 frame #10: libclang_rt.tsan_osx_dynamic.dylib`__sanitizer::Symbolizer::SymbolizePC(this=0x0000000101100078, addr=6465454512) at sanitizer_symbolizer_libcdep.cpp:88:15 frame #11: libclang_rt.tsan_osx_dynamic.dylib`__tsan::SymbolizeCode(addr=6465454512) at tsan_symbolize.cpp:106:35 frame #12: libclang_rt.tsan_osx_dynamic.dylib`__tsan::SymbolizeStack(trace=StackTrace @ 0x0000600002d66d00) at tsan_rtl_report.cpp:112:28 frame #13: libclang_rt.tsan_osx_dynamic.dylib`__tsan::ScopedReportBase::AddMemoryAccess(this=0x000000016f2a2a90, addr=4381057136, external_tag=<unavailable>, s=<unavailable>, tid=<unavailable>, stack=<unavailable>, mset=0x00000001012fc310) at tsan_rtl_report.cpp:190:16 frame #14: libclang_rt.tsan_osx_dynamic.dylib`__tsan::ReportRace(thr=0x00000001012fc000, shadow_mem=0x000008020a4340e0, cur=<unavailable>, old=<unavailable>, typ0=1) at tsan_rtl_report.cpp:795:9 frame #15: libclang_rt.tsan_osx_dynamic.dylib`__tsan::DoReportRace(thr=0x00000001012fc000, shadow_mem=0x000008020a4340e0, cur=Shadow @ x22, old=Shadow @ 0x0000600002d6b4f0, typ=1) at tsan_rtl_access.cpp:166:3 frame #16: libclang_rt.tsan_osx_dynamic.dylib`::__tsan_read8(void *) at tsan_rtl_access.cpp:220:5 frame #17: libclang_rt.tsan_osx_dynamic.dylib`::__tsan_read8(void *) [inlined] __tsan::MemoryAccess(thr=0x00000001012fc000, pc=<unavailable>, addr=<unavailable>, size=8, typ=1) at tsan_rtl_access.cpp:442:3 frame #18: libclang_rt.tsan_osx_dynamic.dylib`::__tsan_read8(addr=<unavailable>) at tsan_interface.inc:34:3 <call into TSan from from instrumented code> thread #4, queue = 'com.apple.dock.fullscreen' frame #0: libsystem_kernel.dylib frame #1: libclang_rt.tsan_osx_dynamic.dylib`__sanitizer::FutexWait(p=<unavailable>, cmp=<unavailable>) at sanitizer_mac.cpp:540:3 frame #2: libclang_rt.tsan_osx_dynamic.dylib`__sanitizer::Semaphore::Wait(this=<unavailable>) at sanitizer_mutex.cpp:35:7 frame #3: libclang_rt.tsan_osx_dynamic.dylib`__sanitizer::Mutex::Lock(this=0x0000000102992a80) at sanitizer_mutex.h:196:18 frame #4: libclang_rt.tsan_osx_dynamic.dylib`__tsan::ScopedInterceptor::~ScopedInterceptor() [inlined] __sanitizer::GenericScopedLock<__sanitizer::Mutex>::GenericScopedLock(this=<unavailable>, mu=0x0000000102992a80) at sanitizer_mutex.h:383:10 frame #5: libclang_rt.tsan_osx_dynamic.dylib`__tsan::ScopedInterceptor::~ScopedInterceptor() [inlined] __sanitizer::GenericScopedLock<__sanitizer::Mutex>::GenericScopedLock(this=<unavailable>, mu=0x0000000102992a80) at sanitizer_mutex.h:382:77 frame #6: libclang_rt.tsan_osx_dynamic.dylib`__tsan::ScopedInterceptor::~ScopedInterceptor() at tsan_rtl.h:708:10 frame #7: libclang_rt.tsan_osx_dynamic.dylib`__tsan::ScopedInterceptor::~ScopedInterceptor() [inlined] __tsan::TryTraceFunc(thr=0x000000010f084000, pc=0) at tsan_rtl.h:751:7 frame #8: libclang_rt.tsan_osx_dynamic.dylib`__tsan::ScopedInterceptor::~ScopedInterceptor() [inlined] __tsan::FuncExit(thr=0x000000010f084000) at tsan_rtl.h:798:7 frame #9: libclang_rt.tsan_osx_dynamic.dylib`__tsan::ScopedInterceptor::~ScopedInterceptor(this=0x000000016f3ba280) at tsan_interceptors_posix.cpp:300:5 frame #10: libclang_rt.tsan_osx_dynamic.dylib`__tsan::ScopedInterceptor::~ScopedInterceptor(this=<unavailable>) at tsan_interceptors_posix.cpp:293:41 frame #11: libclang_rt.tsan_osx_dynamic.dylib`::wrap_os_unfair_lock_lock_with_options(lock=0x000000016f21b1e8, options=OS_UNFAIR_LOCK_NONE) at tsan_interceptors_mac.cpp:310:1 frame #12: dyld`dyld4::RuntimeLocks::withLoadersReadLock(this=0x000000016f21b1e0, work=0x00000001814525d4) block_pointer) at DyldRuntimeState.cpp:227:28 frame #13: dyld`dyld4::APIs::_dyld_get_image_vmaddr_slide(this=0x0000000101012a20, imageIndex=412) at DyldAPIs.cpp:273:11 frame #14: libclang_rt.tsan_osx_dynamic.dylib`__sanitizer::MemoryMappingLayout::Next(__sanitizer::MemoryMappedSegment*) at sanitizer_procmaps_mac.cpp:286:17 frame #15: libclang_rt.tsan_osx_dynamic.dylib`__sanitizer::MemoryMappingLayout::Next(this=0x000000016f3ba560, segment=0x000000016f3ba498) at sanitizer_procmaps_mac.cpp:432:15 frame #16: libclang_rt.tsan_osx_dynamic.dylib`__sanitizer::MemoryMappingLayout::DumpListOfModules(this=0x000000016f3ba560, modules=0x000000016f3ba618) at sanitizer_procmaps_mac.cpp:460:10 frame #17: libclang_rt.tsan_osx_dynamic.dylib`__sanitizer::ListOfModules::init(this=0x000000016f3ba618) at sanitizer_mac.cpp:610:18 frame #18: libclang_rt.tsan_osx_dynamic.dylib`__sanitizer::LibIgnore::OnLibraryLoaded(this=0x0000000101f3aa40, name="<some library>") at sanitizer_libignore.cpp:54:11 frame #19: libclang_rt.tsan_osx_dynamic.dylib`::wrap_dlopen(filename="<some library>", flag=<unavailable>) at sanitizer_common_interceptors.inc:6466:3 <library code> ``` rdar://106766395 Differential Revision: https://reviews.llvm.org/D146593

…tput The crash happens in clang::driver::tools::SplitDebugName when Output is InputInfo::Nothing. It doesn't happen with standalone clang driver because output is created in Driver::BuildJobsForActionNoCache. Example backtrace: ``` * thread #1, name = 'clangd', stop reason = hit program assert * frame #0: 0x00007ffff5c4eacf libc.so.6`raise + 271 frame #1: 0x00007ffff5c21ea5 libc.so.6`abort + 295 frame #2: 0x00007ffff5c21d79 libc.so.6`__assert_fail_base.cold.0 + 15 frame #3: 0x00007ffff5c47426 libc.so.6`__assert_fail + 70 frame #4: 0x000055555dc0923c clangd`clang::driver::InputInfo::getFilename(this=0x00007fffffff9398) const at InputInfo.h:84:5 frame #5: 0x000055555dcd0d8d clangd`clang::driver::tools::SplitDebugName(JA=0x000055555f6c6a50, Args=0x000055555f6d0b80, Input=0x00007fffffff9678, Output=0x00007fffffff9398) at CommonArgs.cpp:1275:40 frame #6: 0x000055555dc955a5 clangd`clang::driver::tools::Clang::ConstructJob(this=0x000055555f6c69d0, C=0x000055555f6c64a0, JA=0x000055555f6c6a50, Output=0x00007fffffff9398, Inputs=0x00007fffffff9668, Args=0x000055555f6d0b80, LinkingOutput=0x0000000000000000) const at Clang.cpp:5690:33 frame #7: 0x000055555dbf6b54 clangd`clang::driver::Driver::BuildJobsForActionNoCache(this=0x00007fffffffb5e0, C=0x000055555f6c64a0, A=0x000055555f6c6a50, TC=0x000055555f6c4be0, BoundArch=(Data = 0x0000000000000000, Length = 0), AtTopLevel=true, MultipleArchs=false, LinkingOutput=0x0000000000000000, CachedResults=size=1, TargetDeviceOffloadKind=OFK_None) const at Driver.cpp:5618:10 frame #8: 0x000055555dbf4ef0 clangd`clang::driver::Driver::BuildJobsForAction(this=0x00007fffffffb5e0, C=0x000055555f6c64a0, A=0x000055555f6c6a50, TC=0x000055555f6c4be0, BoundArch=(Data = 0x0000000000000000, Length = 0), AtTopLevel=true, MultipleArchs=false, LinkingOutput=0x0000000000000000, CachedResults=size=1, TargetDeviceOffloadKind=OFK_None) const at Driver.cpp:5306:26 frame #9: 0x000055555dbeb590 clangd`clang::driver::Driver::BuildJobs(this=0x00007fffffffb5e0, C=0x000055555f6c64a0) const at Driver.cpp:4844:5 frame #10: 0x000055555dbe6b0f clangd`clang::driver::Driver::BuildCompilation(this=0x00007fffffffb5e0, ArgList=ArrayRef<const char *> @ 0x00007fffffffb268) at Driver.cpp:1496:3 frame #11: 0x000055555b0cc0d9 clangd`clang::createInvocation(ArgList=ArrayRef<const char *> @ 0x00007fffffffbb38, Opts=CreateInvocationOptions @ 0x00007fffffffbb90) at CreateInvocationFromCommandLine.cpp:53:52 frame #12: 0x000055555b378e7b clangd`clang::clangd::buildCompilerInvocation(Inputs=0x00007fffffffca58, D=0x00007fffffffc158, CC1Args=size=0) at Compiler.cpp:116:44 frame #13: 0x000055555895a6c8 clangd`clang::clangd::(anonymous namespace)::Checker::buildInvocation(this=0x00007fffffffc760, TFS=0x00007fffffffe570, Contents= Has Value=false ) at Check.cpp:212:9 frame #14: 0x0000555558959cec clangd`clang::clangd::check(File=(Data = "build/test.cpp", Length = 64), TFS=0x00007fffffffe570, Opts=0x00007fffffffe600) at Check.cpp:486:34 frame #15: 0x000055555892164a clangd`main(argc=4, argv=0x00007fffffffecd8) at ClangdMain.cpp:993:12 frame #16: 0x00007ffff5c3ad85 libc.so.6`__libc_start_main + 229 frame #17: 0x00005555585bbe9e clangd`_start + 46 ``` Test Plan: ninja ClangDriverTests && tools/clang/unittests/Driver/ClangDriverTests Differential Revision: https://reviews.llvm.org/D154602

This reverts commit f8a36d8. I believe this is causing an assertion failure on the sanitizer-x86_64-linux buildbot: clang++: /b/sanitizer-x86_64-linux/build/llvm-project/llvm/include/llvm/Support/Casting.h:578: decltype(auto) llvm::cast(From *) [To = llvm::BinaryOperator, From = llvm::Value]: Assertion `isa<To>(Val) && "cast<Ty>() argument of incompatible type!"' failed. #10 0x000055bdd7e82408 canonicalizeLogicFirst(llvm::BinaryOperator&, llvm::IRBuilder<llvm::TargetFolder, llvm::IRBuilderCallbackInserter>&) /b/sanitizer-x86_64-linux/build/llvm-project/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp:2131:5 #11 0x000055bdd7e80183 llvm::InstCombinerImpl::visitAnd(llvm::BinaryOperator&) /b/sanitizer-x86_64-linux/build/llvm-project/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp:2661:20 Likely the code is encountering a constant expression in a case it didn't before.

This crash was exposed recently in our randomized testing. _BitInts were not being handled properly during IntegerLiteral visitation. This patch addresses the problem for now. The BitIntType has no getKind() method, so the FoldingSetID is taken from the APInt value representing the _BitInt(), similar to other methods in StmtProfile.cpp. Crash seen (summary form): clang-tidy: <src-root>/llvm/include/llvm/Support/Casting.h:566: decltype(auto) llvm::cast(const From&) [with To = clang::BuiltinType; From = clang::QualType]: Assertion `isa<To>(Val) && "cast<Ty>() argument of incompatible type!"' failed ``` #9 <address> decltype(auto) llvm::cast<clang::BuiltinType, clang::QualType>(clang::QualType const&) <src-root>/llvm/include/llvm/Support/Casting.h:566:3 #10 <address> clang::BuiltinType const* clang::Type::castAs<clang::BuiltinType>() const <bin-root>/tools/clang/include/clang/AST/TypeNodes.inc:86:1 #11 <address> (anonymous namespace)::StmtProfiler::VisitIntegerLiteral( clang::IntegerLiteral const*) <src-root>/clang/lib/AST/StmtProfile.cpp:1362:64 #12 <address> clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::StmtProfiler, void>::Visit(clang::Stmt const*) <src-root>/clang/include/clang/AST/StmtNodes.inc:1225:1 ``` Reviewed By: donat.nagy

After 89d458b and #7662, the code of MetadataLoader.cpp allows the new NumExtraInhabitants field, but it always supposes it is available. Some tests do not seem to like that. When compiling with asserts, binaries like `opt` will crash with an assertion accessing `SmallVector` indices out of bounts, while in no-asserts it just keeps going, probably using garbage values. Change two places where the `Record` was accessed with `operator[]` without first checking for the `Record` size to check for the size. Use a default of `0` in case the record is not found. The test that failed before these changes are: ``` LLVM :: Bitcode/DIExpression-4.0.ll LLVM :: Bitcode/DIExpression-aggresult.ll LLVM :: Bitcode/DIExpression-deref.ll LLVM :: Bitcode/DIExpression-minus-upgrade.ll LLVM :: Bitcode/DIGlobalVariableExpression.ll LLVM :: Bitcode/DIGlobalVariableExpression2.ll LLVM :: Bitcode/DIModule-fortran-module.ll LLVM :: Bitcode/DINamespace.ll LLVM :: Bitcode/DISubprogram-v4.ll LLVM :: Bitcode/DISubprogram-v5.ll LLVM :: Bitcode/DITemplateParameter-5.0.ll LLVM :: Bitcode/diglobalvariable-3.8.ll LLVM :: Bitcode/dilocalvariable-3.9.ll LLVM :: Bitcode/disubrange-v0.ll LLVM :: Bitcode/dityperefs-3.8.ll LLVM :: Bitcode/invalid.test LLVM :: Bitcode/upgrade-cu-locals.ll LLVM :: Bitcode/upgrade-dbg-addr.ll LLVM :: Bitcode/upgrade-dbg-value.ll LLVM :: Bitcode/upgrade-pointer-address-space.ll LLVM :: ThinLTO/X86/drop-debug-info.ll ``` The failure looked like the following: ``` Assertion failed: (idx < size()), function operator[], file SmallVector.h, line 294. PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. Stack dump: 0. Program arguments: /Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis -o - /Users/danielrodriguez/code/swift-source/llvm-project/llvm/test/Bitcode/DIExpression-minus-upgrade.ll.bc #0 0x00000001003507b7 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x1001ca7b7) #1 0x000000010034ed55 llvm::sys::RunSignalHandlers() (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x1001c8d55) #2 0x0000000100351040 SignalHandler(int) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x1001cb040) #3 0x00007ff805ec05ed (/usr/lib/system/libsystem_platform.dylib+0x7ff8004245ed) #4 0x0000000000000000 #5 0x00007ff805db9b45 (/usr/lib/system/libsystem_c.dylib+0x7ff80031db45) #6 0x00007ff805db8e5e (/usr/lib/system/libsystem_c.dylib+0x7ff80031ce5e) #7 0x0000000100385573 llvm::MetadataLoader::MetadataLoaderImpl::parseOneMetadata(llvm::SmallVectorImpl<unsigned long long>&, unsigned int, (anonymous namespace)::(anonymous namespace)::PlaceholderQueue&, llvm::StringRef, unsigned int&) (.cold.50) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x1001ff573) #8 0x00000001001d13a3 llvm::MetadataLoader::MetadataLoaderImpl::parseOneMetadata(llvm::SmallVectorImpl<unsigned long long>&, unsigned int, (anonymous namespace)::(anonymous namespace)::PlaceholderQueue&, llvm::StringRef, unsigned int&) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x10004b3a3) #9 0x00000001001c9496 llvm::MetadataLoader::MetadataLoaderImpl::parseMetadata(bool) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x100043496) #10 0x00000001001d2f71 llvm::MetadataLoader::parseMetadata(bool) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x10004cf71) #11 0x00000001001b33b7 (anonymous namespace)::BitcodeReader::parseModule(unsigned long long, bool, llvm::ParserCallbacks) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x10002d3b7) #12 0x000000010018f2f5 llvm::BitcodeModule::getModuleImpl(llvm::LLVMContext&, bool, bool, bool, llvm::ParserCallbacks) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x1000092f5) #13 0x000000010019008a llvm::BitcodeModule::getLazyModule(llvm::LLVMContext&, bool, bool, llvm::ParserCallbacks) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x10000a08a) #14 0x0000000100189593 main (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x100003593) #15 0x0000000200a0941f ``` With these changes, those tests all pass and the crash does not reproduce.

…tePluginObject After llvm#68052 this function changed from returning a nullptr with `return {};` to returning Expected and hitting `llvm_unreachable` before it could do so. I gather that we're never supposed to call this function, but on Windows we actually do call this function because `interpreter->CreateScriptedProcessInterface()` returns `ScriptedProcessInterface` not `ScriptedProcessPythonInterface`. Likely because `target_sp->GetDebugger().GetScriptInterpreter()` also does not return a Python related class. The previously XFAILed test crashed with: ``` # .---command stderr------------ # | PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. # | Stack dump: # | 0. Program arguments: c:\\users\\tcwg\\david.spickett\\build-llvm\\bin\\lldb-test.exe ir-memory-map C:\\Users\\tcwg\\david.spickett\\build-llvm\\tools\\lldb\\test\\Shell\\Expr\\Output\\TestIRMemoryMapWindows.test.tmp C:\\Users\\tcwg\\david.spickett\\llvm-project\\lldb\\test\\Shell\\Expr/Inputs/ir-memory-map-basic # | 1. HandleCommand(command = "run") # | Exception Code: 0xC000001D # | #0 0x00007ff696b5f588 lldb_private::ScriptedProcessInterface::CreatePluginObject(class llvm::StringRef, class lldb_private::ExecutionContext &, class std::shared_ptr<class lldb_private::StructuredData::Dictionary>, class lldb_private::StructuredData::Generic *) C:\Users\tcwg\david.spickett\llvm-project\lldb\include\lldb\Interpreter\Interfaces\ScriptedProcessInterface.h:28:0 # | #1 0x00007ff696b1d808 llvm::Expected<std::shared_ptr<lldb_private::StructuredData::Generic> >::operator bool C:\Users\tcwg\david.spickett\llvm-project\llvm\include\llvm\Support\Error.h:567:0 # | #2 0x00007ff696b1d808 lldb_private::ScriptedProcess::ScriptedProcess(class std::shared_ptr<class lldb_private::Target>, class std::shared_ptr<class lldb_private::Listener>, class lldb_private::ScriptedMetadata const &, class lldb_private::Status &) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Plugins\Process\scripted\ScriptedProcess.cpp:115:0 # | #3 0x00007ff696b1d124 std::shared_ptr<lldb_private::ScriptedProcess>::shared_ptr C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1478:0 # | #4 0x00007ff696b1d124 lldb_private::ScriptedProcess::CreateInstance(class std::shared_ptr<class lldb_private::Target>, class std::shared_ptr<class lldb_private::Listener>, class lldb_private::FileSpec const *, bool) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Plugins\Process\scripted\ScriptedProcess.cpp:61:0 # | #5 0x00007ff69699c8f4 std::_Ptr_base<lldb_private::Process>::_Move_construct_from C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1237:0 # | #6 0x00007ff69699c8f4 std::shared_ptr<lldb_private::Process>::shared_ptr C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1534:0 # | #7 0x00007ff69699c8f4 std::shared_ptr<lldb_private::Process>::operator= C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1594:0 # | #8 0x00007ff69699c8f4 lldb_private::Process::FindPlugin(class std::shared_ptr<class lldb_private::Target>, class llvm::StringRef, class std::shared_ptr<class lldb_private::Listener>, class lldb_private::FileSpec const *, bool) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Target\Process.cpp:396:0 # | #9 0x00007ff6969bd708 std::_Ptr_base<lldb_private::Process>::_Move_construct_from C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1237:0 # | #10 0x00007ff6969bd708 std::shared_ptr<lldb_private::Process>::shared_ptr C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1534:0 # | #11 0x00007ff6969bd708 std::shared_ptr<lldb_private::Process>::operator= C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1594:0 # | #12 0x00007ff6969bd708 lldb_private::Target::CreateProcess(class std::shared_ptr<class lldb_private::Listener>, class llvm::StringRef, class lldb_private::FileSpec const *, bool) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Target\Target.cpp:215:0 # | #13 0x00007ff696b13af0 std::_Ptr_base<lldb_private::Process>::_Ptr_base C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1230:0 # | #14 0x00007ff696b13af0 std::shared_ptr<lldb_private::Process>::shared_ptr C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1524:0 # | #15 0x00007ff696b13af0 lldb_private::PlatformWindows::DebugProcess(class lldb_private::ProcessLaunchInfo &, class lldb_private::Debugger &, class lldb_private::Target &, class lldb_private::Status &) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Plugins\Platform\Windows\PlatformWindows.cpp:495:0 # | #16 0x00007ff6969cf590 std::_Ptr_base<lldb_private::Process>::_Move_construct_from C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1237:0 # | #17 0x00007ff6969cf590 std::shared_ptr<lldb_private::Process>::shared_ptr C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1534:0 # | #18 0x00007ff6969cf590 std::shared_ptr<lldb_private::Process>::operator= C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32124\include\memory:1594:0 # | #19 0x00007ff6969cf590 lldb_private::Target::Launch(class lldb_private::ProcessLaunchInfo &, class lldb_private::Stream *) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Target\Target.cpp:3274:0 # | #20 0x00007ff696fff82c CommandObjectProcessLaunch::DoExecute(class lldb_private::Args &, class lldb_private::CommandReturnObject &) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Commands\CommandObjectProcess.cpp:258:0 # | #21 0x00007ff696fab6c0 lldb_private::CommandObjectParsed::Execute(char const *, class lldb_private::CommandReturnObject &) C:\Users\tcwg\david.spickett\llvm-project\lldb\source\Interpreter\CommandObject.cpp:751:0 # `----------------------------- # error: command failed with exit status: 0xc000001d ``` That might be a bug on the Windows side, or an artifact of how our build is setup, but whatever it is, having `CreatePluginObject` return an error and the caller check it, fixes the failing test. The built lldb can run the script command to use Python, but I'm not sure if that means anything.

…ooking options for a custom subcommand (llvm#71975) …ooking options for a custom subcommand. (llvm#71776)" This reverts commit b88308b. The build-bot is unhappy (https://lab.llvm.org/buildbot/#/builders/186/builds/13096), `GroupingAndPrefix` fails after `TopLevelOptInSubcommand` (the newly added test). Revert while I look into this (might be related with test sharding but not sure) ``` [----------] 3 tests from CommandLineTest [ RUN ] CommandLineTest.TokenizeWindowsCommandLine2 [ OK ] CommandLineTest.TokenizeWindowsCommandLine2 (0 ms) [ RUN ] CommandLineTest.TopLevelOptInSubcommand [ OK ] CommandLineTest.TopLevelOptInSubcommand (0 ms) [ RUN ] CommandLineTest.GroupingAndPrefix #0 0x00ba8118 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x594118) #1 0x00ba5914 llvm::sys::RunSignalHandlers() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x591914) #2 0x00ba89c4 SignalHandler(int) (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5949c4) #3 0xf7828530 __default_sa_restorer /build/glibc-9MGTF6/glibc-2.31/signal/../sysdeps/unix/sysv/linux/arm/sigrestorer.S:67:0 #4 0x00af91f0 (anonymous namespace)::CommandLineParser::ResetAllOptionOccurrences() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x4e51f0) #5 0x00af8e1c llvm::cl::ResetCommandLineParser() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x4e4e1c) #6 0x0077cda0 (anonymous namespace)::CommandLineTest_GroupingAndPrefix_Test::TestBody() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x168da0) #7 0x00bc5adc testing::Test::Run() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5b1adc) #8 0x00bc6cc0 testing::TestInfo::Run() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5b2cc0) #9 0x00bc7880 testing::TestSuite::Run() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5b3880) #10 0x00bd7974 testing::internal::UnitTestImpl::RunAllTests() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5c3974) #11 0x00bd6ebc testing::UnitTest::Run() (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x5c2ebc) #12 0x00bb1058 main (/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/unittests/Support/./SupportTests+0x59d058) #13 0xf78185a4 __libc_start_main /build/glibc-9MGTF6/glibc-2.31/csu/libc-start.c:342:3 ```

This has been flaky for a while, for example https://lab.llvm.org/buildbot/#/builders/96/builds/50350 ``` Command Output (stdout): -- lldb version 18.0.0git (https://github.com/llvm/llvm-project.git revision 3974d89) clang revision 3974d89 llvm revision 3974d89 "can't evaluate expressions when the process is running." ``` ``` PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. #0 0x0000ffffa46191a0 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x529a1a0) #1 0x0000ffffa4617144 llvm::sys::RunSignalHandlers() (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x5298144) #2 0x0000ffffa46198d0 SignalHandler(int) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x529a8d0) #3 0x0000ffffab25b7dc (linux-vdso.so.1+0x7dc) #4 0x0000ffffab13d050 /build/glibc-Q8DG8B/glibc-2.31/string/../sysdeps/aarch64/multiarch/memcpy_advsimd.S:92:0 #5 0x0000ffffa446f420 lldb_private::process_gdb_remote::GDBRemoteRegisterContext::PrivateSetRegisterValue(unsigned int, llvm::ArrayRef<unsigned char>) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x50f0420) #6 0x0000ffffa446f7b8 lldb_private::process_gdb_remote::GDBRemoteRegisterContext::GetPrimordialRegister(lldb_private::RegisterInfo const*, lldb_private::process_gdb_remote::GDBRemoteCommunicationClient&) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x50f07b8) #7 0x0000ffffa446f308 lldb_private::process_gdb_remote::GDBRemoteRegisterContext::ReadRegisterBytes(lldb_private::RegisterInfo const*) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x50f0308) #8 0x0000ffffa446ec1c lldb_private::process_gdb_remote::GDBRemoteRegisterContext::ReadRegister(lldb_private::RegisterInfo const*, lldb_private::RegisterValue&) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x50efc1c) #9 0x0000ffffa412eaa4 lldb_private::RegisterContext::ReadRegisterAsUnsigned(lldb_private::RegisterInfo const*, unsigned long) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x4dafaa4) #10 0x0000ffffa420861c ReadLinuxProcessAddressMask(std::shared_ptr<lldb_private::Process>, llvm::StringRef) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x4e8961c) #11 0x0000ffffa4208430 ABISysV_arm64::FixCodeAddress(unsigned long) (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-aarch64-linux-gnu.so+0x4e89430) ``` Judging by the backtrace something is trying to read the pointer authentication address/code mask registers. This explains why I've not seen this issue locally, as the buildbot runs on Graviton 3 with has the pointer authentication extension. I will try to reproduce, fix and re-enable the test.

After 89d458b and #7662, the code of MetadataLoader.cpp allows the new NumExtraInhabitants field, but it always supposes it is available. Some tests do not seem to like that. When compiling with asserts, binaries like `opt` will crash with an assertion accessing `SmallVector` indices out of bounts, while in no-asserts it just keeps going, probably using garbage values. Change two places where the `Record` was accessed with `operator[]` without first checking for the `Record` size to check for the size. Use a default of `0` in case the record is not found. The test that failed before these changes are: ``` LLVM :: Bitcode/DIExpression-4.0.ll LLVM :: Bitcode/DIExpression-aggresult.ll LLVM :: Bitcode/DIExpression-deref.ll LLVM :: Bitcode/DIExpression-minus-upgrade.ll LLVM :: Bitcode/DIGlobalVariableExpression.ll LLVM :: Bitcode/DIGlobalVariableExpression2.ll LLVM :: Bitcode/DIModule-fortran-module.ll LLVM :: Bitcode/DINamespace.ll LLVM :: Bitcode/DISubprogram-v4.ll LLVM :: Bitcode/DISubprogram-v5.ll LLVM :: Bitcode/DITemplateParameter-5.0.ll LLVM :: Bitcode/diglobalvariable-3.8.ll LLVM :: Bitcode/dilocalvariable-3.9.ll LLVM :: Bitcode/disubrange-v0.ll LLVM :: Bitcode/dityperefs-3.8.ll LLVM :: Bitcode/invalid.test LLVM :: Bitcode/upgrade-cu-locals.ll LLVM :: Bitcode/upgrade-dbg-addr.ll LLVM :: Bitcode/upgrade-dbg-value.ll LLVM :: Bitcode/upgrade-pointer-address-space.ll LLVM :: ThinLTO/X86/drop-debug-info.ll ``` The failure looked like the following: ``` Assertion failed: (idx < size()), function operator[], file SmallVector.h, line 294. PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. Stack dump: 0. Program arguments: /Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis -o - /Users/danielrodriguez/code/swift-source/llvm-project/llvm/test/Bitcode/DIExpression-minus-upgrade.ll.bc #0 0x00000001003507b7 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x1001ca7b7) #1 0x000000010034ed55 llvm::sys::RunSignalHandlers() (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x1001c8d55) #2 0x0000000100351040 SignalHandler(int) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x1001cb040) #3 0x00007ff805ec05ed (/usr/lib/system/libsystem_platform.dylib+0x7ff8004245ed) #4 0x0000000000000000 #5 0x00007ff805db9b45 (/usr/lib/system/libsystem_c.dylib+0x7ff80031db45) #6 0x00007ff805db8e5e (/usr/lib/system/libsystem_c.dylib+0x7ff80031ce5e) #7 0x0000000100385573 llvm::MetadataLoader::MetadataLoaderImpl::parseOneMetadata(llvm::SmallVectorImpl<unsigned long long>&, unsigned int, (anonymous namespace)::(anonymous namespace)::PlaceholderQueue&, llvm::StringRef, unsigned int&) (.cold.50) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x1001ff573) #8 0x00000001001d13a3 llvm::MetadataLoader::MetadataLoaderImpl::parseOneMetadata(llvm::SmallVectorImpl<unsigned long long>&, unsigned int, (anonymous namespace)::(anonymous namespace)::PlaceholderQueue&, llvm::StringRef, unsigned int&) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x10004b3a3) #9 0x00000001001c9496 llvm::MetadataLoader::MetadataLoaderImpl::parseMetadata(bool) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x100043496) #10 0x00000001001d2f71 llvm::MetadataLoader::parseMetadata(bool) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x10004cf71) #11 0x00000001001b33b7 (anonymous namespace)::BitcodeReader::parseModule(unsigned long long, bool, llvm::ParserCallbacks) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x10002d3b7) #12 0x000000010018f2f5 llvm::BitcodeModule::getModuleImpl(llvm::LLVMContext&, bool, bool, bool, llvm::ParserCallbacks) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x1000092f5) #13 0x000000010019008a llvm::BitcodeModule::getLazyModule(llvm::LLVMContext&, bool, bool, llvm::ParserCallbacks) (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x10000a08a) #14 0x0000000100189593 main (/Users/danielrodriguez/code/swift-source/build/my_macos/llvm-macosx-x86_64/bin/llvm-dis+0x100003593) #15 0x0000000200a0941f ``` With these changes, those tests all pass and the crash does not reproduce. (cherry picked from commit dc75586)

@0

…lvm#80904)" This reverts commit b1ac052. This commit breaks coroutine splitting for non-swift calling convention functions. In this example: ```ll ; ModuleID = 'repro.ll' source_filename = "stdlib/test/runtime/test_llcl.mojo" target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" @0 = internal constant { i32, i32 } { i32 trunc (i64 sub (i64 ptrtoint (ptr @craSH to i64), i64 ptrtoint (ptr getelementptr inbounds ({ i32, i32 }, ptr @0, i32 0, i32 1) to i64)) to i32), i32 64 } define dso_local void @af_suspend_fn(ptr %0, i64 %1, ptr %2) #0 { ret void } define dso_local void @craSH(ptr %0) #0 { %2 = call token @llvm.coro.id.async(i32 64, i32 8, i32 0, ptr @0) %3 = call ptr @llvm.coro.begin(token %2, ptr null) %4 = getelementptr inbounds { ptr, { ptr, ptr }, i64, { ptr, i1 }, i64, i64 }, ptr poison, i32 0, i32 0 %5 = call ptr @llvm.coro.async.resume() store ptr %5, ptr %4, align 8 %6 = call { ptr, ptr, ptr } (i32, ptr, ptr, ...) @llvm.coro.suspend.async.sl_p0p0p0s(i32 0, ptr %5, ptr @ctxt_proj_fn, ptr @af_suspend_fn, ptr poison, i64 -1, ptr poison) ret void } define dso_local ptr @ctxt_proj_fn(ptr %0) #0 { ret ptr %0 } ; Function Attrs: nomerge nounwind declare { ptr, ptr, ptr } @llvm.coro.suspend.async.sl_p0p0p0s(i32, ptr, ptr, ...) #1 ; Function Attrs: nounwind declare token @llvm.coro.id.async(i32, i32, i32, ptr) #2 ; Function Attrs: nounwind declare ptr @llvm.coro.begin(token, ptr writeonly) #2 ; Function Attrs: nomerge nounwind declare ptr @llvm.coro.async.resume() #1 attributes #0 = { "target-features"="+adx,+aes,+avx,+avx2,+bmi,+bmi2,+clflushopt,+clwb,+clzero,+crc32,+cx16,+cx8,+f16c,+fma,+fsgsbase,+fxsr,+invpcid,+lzcnt,+mmx,+movbe,+mwaitx,+pclmul,+pku,+popcnt,+prfchw,+rdpid,+rdpru,+rdrnd,+rdseed,+sahf,+sha,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+sse4a,+ssse3,+vaes,+vpclmulqdq,+wbnoinvd,+x87,+xsave,+xsavec,+xsaveopt,+xsaves" } attributes #1 = { nomerge nounwind } attributes #2 = { nounwind } ``` This verifier crashes after the `coro-split` pass with ``` cannot guarantee tail call due to mismatched parameter counts musttail call void @af_suspend_fn(ptr poison, i64 -1, ptr poison) LLVM ERROR: Broken function PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. Stack dump: 0. Program arguments: opt ../../../reduced.ll -O0 #0 0x00007f1d89645c0e __interceptor_backtrace.part.0 /build/gcc-11-XeT9lY/gcc-11-11.4.0/build/x86_64-linux-gnu/libsanitizer/asan/../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:4193:28 #1 0x0000556d94d254f7 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Support/Unix/Signals.inc:723:22 #2 0x0000556d94d19a2f llvm::sys::RunSignalHandlers() /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Support/Signals.cpp:105:20 #3 0x0000556d94d1aa42 SignalHandler(int) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Support/Unix/Signals.inc:371:36 #4 0x00007f1d88e42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520) #5 0x00007f1d88e969fc __pthread_kill_implementation ./nptl/pthread_kill.c:44:76 #6 0x00007f1d88e969fc __pthread_kill_internal ./nptl/pthread_kill.c:78:10 #7 0x00007f1d88e969fc pthread_kill ./nptl/pthread_kill.c:89:10 #8 0x00007f1d88e42476 gsignal ./signal/../sysdeps/posix/raise.c:27:6 #9 0x00007f1d88e287f3 abort ./stdlib/abort.c:81:7 #10 0x0000556d8944be01 std::vector<llvm::json::Value, std::allocator<llvm::json::Value>>::size() const /usr/include/c++/11/bits/stl_vector.h:919:40 #11 0x0000556d8944be01 bool std::operator==<llvm::json::Value, std::allocator<llvm::json::Value>>(std::vector<llvm::json::Value, std::allocator<llvm::json::Value>> const&, std::vector<llvm::json::Value, std::allocator<llvm::json::Value>> const&) /usr/include/c++/11/bits/stl_vector.h:1893:23 #12 0x0000556d8944be01 llvm::json::operator==(llvm::json::Array const&, llvm::json::Array const&) /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/Support/JSON.h:572:69 #13 0x0000556d8944be01 llvm::json::operator==(llvm::json::Value const&, llvm::json::Value const&) (.cold) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Support/JSON.cpp:204:28 #14 0x0000556d949ed2bd llvm::report_fatal_error(char const*, bool) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Support/ErrorHandling.cpp:82:70 #15 0x0000556d8e37e876 llvm::SmallVectorBase<unsigned int>::size() const /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/ADT/SmallVector.h:91:32 #16 0x0000556d8e37e876 llvm::SmallVectorTemplateCommon<llvm::DiagnosticInfoOptimizationBase::Argument, void>::end() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/ADT/SmallVector.h:282:41 #17 0x0000556d8e37e876 llvm::SmallVector<llvm::DiagnosticInfoOptimizationBase::Argument, 4u>::~SmallVector() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/ADT/SmallVector.h:1215:24 #18 0x0000556d8e37e876 llvm::DiagnosticInfoOptimizationBase::~DiagnosticInfoOptimizationBase() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/DiagnosticInfo.h:413:7 #19 0x0000556d8e37e876 llvm::DiagnosticInfoIROptimization::~DiagnosticInfoIROptimization() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/DiagnosticInfo.h:622:7 #20 0x0000556d8e37e876 llvm::OptimizationRemark::~OptimizationRemark() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/DiagnosticInfo.h:689:7 #21 0x0000556d8e37e876 operator() /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Transforms/Coroutines/CoroSplit.cpp:2213:14 #22 0x0000556d8e37e876 emit<llvm::CoroSplitPass::run(llvm::LazyCallGraph::SCC&, llvm::CGSCCAnalysisManager&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&)::<lambda()> > /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/Analysis/OptimizationRemarkEmitter.h:83:12 #23 0x0000556d8e37e876 llvm::CoroSplitPass::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Transforms/Coroutines/CoroSplit.cpp:2212:13 #24 0x0000556d8c36ecb1 llvm::detail::PassModel<llvm::LazyCallGraph::SCC, llvm::CoroSplitPass, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/PassManagerInternal.h:91:3 #25 0x0000556d91c1a84f llvm::PassManager<llvm::LazyCallGraph::SCC, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Analysis/CGSCCPassManager.cpp:90:12 #26 0x0000556d8c3690d1 llvm::detail::PassModel<llvm::LazyCallGraph::SCC, llvm::PassManager<llvm::LazyCallGraph::SCC, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/PassManagerInternal.h:91:3 #27 0x0000556d91c2162d llvm::ModuleToPostOrderCGSCCPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Analysis/CGSCCPassManager.cpp:278:18 #28 0x0000556d8c369035 llvm::detail::PassModel<llvm::Module, llvm::ModuleToPostOrderCGSCCPassAdaptor, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/PassManagerInternal.h:91:3 #29 0x0000556d9457abc5 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/PassManager.h:247:20 #30 0x0000556d8e30979e llvm::CoroConditionalWrapper::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) /home/ubuntu/modular/third-party/llvm-project/llvm/lib/Transforms/Coroutines/CoroConditionalWrapper.cpp:19:74 #31 0x0000556d8c365755 llvm::detail::PassModel<llvm::Module, llvm::CoroConditionalWrapper, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/PassManagerInternal.h:91:3 #32 0x0000556d9457abc5 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/PassManager.h:247:20 #33 0x0000556d89818556 llvm::SmallPtrSetImplBase::isSmall() const /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/ADT/SmallPtrSet.h:196:33 #34 0x0000556d89818556 llvm::SmallPtrSetImplBase::~SmallPtrSetImplBase() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/ADT/SmallPtrSet.h:84:17 #35 0x0000556d89818556 llvm::SmallPtrSetImpl<llvm::AnalysisKey*>::~SmallPtrSetImpl() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/ADT/SmallPtrSet.h:321:7 #36 0x0000556d89818556 llvm::SmallPtrSet<llvm::AnalysisKey*, 2u>::~SmallPtrSet() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/ADT/SmallPtrSet.h:427:7 #37 0x0000556d89818556 llvm::PreservedAnalyses::~PreservedAnalyses() /home/ubuntu/modular/third-party/llvm-project/llvm/include/llvm/IR/Analysis.h:109:7 #38 0x0000556d89818556 llvm::runPassPipeline(llvm::StringRef, llvm::Module&, llvm::TargetMachine*, llvm::TargetLibraryInfoImpl*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::StringRef, llvm::ArrayRef<llvm::PassPlugin>, llvm::ArrayRef<std::function<void (llvm::PassBuilder&)>>, llvm::opt_tool::OutputKind, llvm::opt_tool::VerifierKind, bool, bool, bool, bool, bool, bool, bool) /home/ubuntu/modular/third-party/llvm-project/llvm/tools/opt/NewPMDriver.cpp:532:10 #39 0x0000556d897e3939 optMain /home/ubuntu/modular/third-party/llvm-project/llvm/tools/opt/optdriver.cpp:737:27 #40 0x0000556d89455461 main /home/ubuntu/modular/third-party/llvm-project/llvm/tools/opt/opt.cpp:25:33 #41 0x00007f1d88e29d90 __libc_start_call_main ./csu/../sysdeps/nptl/libc_start_call_main.h:58:16 #42 0x00007f1d88e29e40 call_init ./csu/../csu/libc-start.c:128:20 #43 0x00007f1d88e29e40 __libc_start_main ./csu/../csu/libc-start.c:379:5 #44 0x0000556d897b6335 _start (/home/ubuntu/modular/.derived/third-party/llvm-project/build-relwithdebinfo-asan/bin/opt+0x150c335) Aborted (core dumped)

TestCases/Misc/Linux/sigaction.cpp fails because dlsym() may call malloc on failure. And then the wrapped malloc appears to access thread local storage using global dynamic accesses, thus calling ___interceptor___tls_get_addr, before REAL(__tls_get_addr) has been set, so we get a crash inside ___interceptor___tls_get_addr. For example, this can happen when looking up __isoc23_scanf which might not exist in some libcs. Fix this by marking the thread local variable accessed inside the debug checks as "initial-exec", which does not require __tls_get_addr. This is probably a better alternative to llvm#83886. This fixes a different crash but is related to llvm#46204. Backtrace: ``` #0 0x0000000000000000 in ?? () #1 0x00007ffff6a9d89e in ___interceptor___tls_get_addr (arg=0x7ffff6b27be8) at /path/to/llvm/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:2759 #2 0x00007ffff6a46bc6 in __sanitizer::CheckedMutex::LockImpl (this=0x7ffff6b27be8, pc=140737331846066) at /path/to/llvm/compiler-rt/lib/sanitizer_common/sanitizer_mutex.cpp:218 #3 0x00007ffff6a448b2 in __sanitizer::CheckedMutex::Lock (this=0x7ffff6b27be8, this@entry=0x730000000580) at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_mutex.h:129 #4 __sanitizer::Mutex::Lock (this=0x7ffff6b27be8, this@entry=0x730000000580) at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_mutex.h:167 #5 0x00007ffff6abdbb2 in __sanitizer::GenericScopedLock<__sanitizer::Mutex>::GenericScopedLock (mu=0x730000000580, this=<optimized out>) at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_mutex.h:383 #6 __sanitizer::SizeClassAllocator64<__tsan::AP64>::GetFromAllocator (this=0x7ffff7487dc0 <__tsan::allocator_placeholder>, stat=stat@entry=0x7ffff570db68, class_id=11, chunks=chunks@entry=0x7ffff5702cc8, n_chunks=n_chunks@entry=128) at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_allocator_primary64.h:207 #7 0x00007ffff6abdaa0 in __sanitizer::SizeClassAllocator64LocalCache<__sanitizer::SizeClassAllocator64<__tsan::AP64> >::Refill (this=<optimized out>, c=c@entry=0x7ffff5702cb8, allocator=<optimized out>, class_id=<optimized out>) at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_allocator_local_cache.h:103 #8 0x00007ffff6abd731 in __sanitizer::SizeClassAllocator64LocalCache<__sanitizer::SizeClassAllocator64<__tsan::AP64> >::Allocate (this=0x7ffff6b27be8, allocator=0x7ffff5702cc8, class_id=140737311157448) at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_allocator_local_cache.h:39 #9 0x00007ffff6abc397 in __sanitizer::CombinedAllocator<__sanitizer::SizeClassAllocator64<__tsan::AP64>, __sanitizer::LargeMmapAllocatorPtrArrayDynamic>::Allocate (this=0x7ffff5702cc8, cache=0x7ffff6b27be8, size=<optimized out>, size@entry=175, alignment=alignment@entry=16) at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_allocator_combined.h:69 #10 0x00007ffff6abaa6a in __tsan::user_alloc_internal (thr=0x7ffff7ebd980, pc=140737331499943, sz=sz@entry=175, align=align@entry=16, signal=true) at /path/to/llvm/compiler-rt/lib/tsan/rtl/tsan_mman.cpp:198 #11 0x00007ffff6abb0d1 in __tsan::user_alloc (thr=0x7ffff6b27be8, pc=140737331846066, sz=11, sz@entry=175) at /path/to/llvm/compiler-rt/lib/tsan/rtl/tsan_mman.cpp:223 #12 0x00007ffff6a693b5 in ___interceptor_malloc (size=175) at /path/to/llvm/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:666 #13 0x00007ffff7fce7f2 in malloc (size=175) at ../include/rtld-malloc.h:56 #14 __GI__dl_exception_create_format (exception=exception@entry=0x7fffffffd0d0, objname=0x7ffff7fc3550 "/path/to/llvm/compiler-rt/cmake-build-all-sanitizers/lib/linux/libclang_rt.tsan-x86_64.so", fmt=fmt@entry=0x7ffff7ff2db9 "undefined symbol: %s%s%s") at ./elf/dl-exception.c:157 #15 0x00007ffff7fd50e8 in _dl_lookup_symbol_x (undef_name=0x7ffff6af868b "__isoc23_scanf", undef_map=<optimized out>, ref=0x7fffffffd148, symbol_scope=<optimized out>, version=<optimized out>, type_class=0, flags=2, skip_map=0x7ffff7fc35e0) at ./elf/dl-lookup.c:793 --Type <RET> for more, q to quit, c to continue without paging-- #16 0x00007ffff656d6ed in do_sym (handle=<optimized out>, name=0x7ffff6af868b "__isoc23_scanf", who=0x7ffff6a3bb84 <__interception::InterceptFunction(char const*, unsigned long*, unsigned long, unsigned long)+36>, vers=vers@entry=0x0, flags=flags@entry=2) at ./elf/dl-sym.c:146 #17 0x00007ffff656d9dd in _dl_sym (handle=<optimized out>, name=<optimized out>, who=<optimized out>) at ./elf/dl-sym.c:195 #18 0x00007ffff64a2854 in dlsym_doit (a=a@entry=0x7fffffffd3b0) at ./dlfcn/dlsym.c:40 #19 0x00007ffff7fcc489 in __GI__dl_catch_exception (exception=exception@entry=0x7fffffffd310, operate=0x7ffff64a2840 <dlsym_doit>, args=0x7fffffffd3b0) at ./elf/dl-catch.c:237 #20 0x00007ffff7fcc5af in _dl_catch_error (objname=0x7fffffffd368, errstring=0x7fffffffd370, mallocedp=0x7fffffffd367, operate=<optimized out>, args=<optimized out>) at ./elf/dl-catch.c:256 #21 0x00007ffff64a2257 in _dlerror_run (operate=operate@entry=0x7ffff64a2840 <dlsym_doit>, args=args@entry=0x7fffffffd3b0) at ./dlfcn/dlerror.c:138 #22 0x00007ffff64a28e5 in dlsym_implementation (dl_caller=<optimized out>, name=<optimized out>, handle=<optimized out>) at ./dlfcn/dlsym.c:54 #23 ___dlsym (handle=<optimized out>, name=<optimized out>) at ./dlfcn/dlsym.c:68 #24 0x00007ffff6a3bb84 in __interception::GetFuncAddr (name=0x7ffff6af868b "__isoc23_scanf", trampoline=140737311157448) at /path/to/llvm/compiler-rt/lib/interception/interception_linux.cpp:42 #25 __interception::InterceptFunction (name=0x7ffff6af868b "__isoc23_scanf", ptr_to_real=0x7ffff74850e8 <__interception::real___isoc23_scanf>, func=11, trampoline=140737311157448) at /path/to/llvm/compiler-rt/lib/interception/interception_linux.cpp:61 #26 0x00007ffff6a9f2d9 in InitializeCommonInterceptors () at /path/to/llvm/compiler-rt/lib/tsan/rtl/../../sanitizer_common/sanitizer_common_interceptors.inc:10315 ``` Reviewed By: vitalybuka, MaskRay Pull Request: llvm#83890

…arallel fusion llvm#94391 (llvm#97607)" This reverts commit edbc0e3. Reason for rollback. ASAN complains about this PR: ==4320==ERROR: AddressSanitizer: heap-use-after-free on address 0x502000006cd8 at pc 0x55e2978d63cf bp 0x7ffe6431c2b0 sp 0x7ffe6431c2a8 READ of size 8 at 0x502000006cd8 thread T0 #0 0x55e2978d63ce in map<llvm::MutableArrayRef<mlir::BlockArgument> &, llvm::MutableArrayRef<mlir::BlockArgument>, nullptr> mlir/include/mlir/IR/IRMapping.h:40:11 #1 0x55e2978d63ce in mlir::createFused(mlir::LoopLikeOpInterface, mlir::LoopLikeOpInterface, mlir::RewriterBase&, std::__u::function<llvm::SmallVector<mlir::Value, 6u> (mlir::OpBuilder&, mlir::Location, llvm::ArrayRef<mlir::BlockArgument>)>, llvm::function_ref<void (mlir::RewriterBase&, mlir::LoopLikeOpInterface, mlir::LoopLikeOpInterface&, mlir::IRMapping)>) mlir/lib/Interfaces/LoopLikeInterface.cpp:156:11 #2 0x55e2952a614b in mlir::fuseIndependentSiblingForLoops(mlir::scf::ForOp, mlir::scf::ForOp, mlir::RewriterBase&) mlir/lib/Dialect/SCF/Utils/Utils.cpp:1398:43 #3 0x55e291480c6f in mlir::transform::LoopFuseSiblingOp::apply(mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) mlir/lib/Dialect/SCF/TransformOps/SCFTransformOps.cpp:482:17 #4 0x55e29149ed5e in mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Model<mlir::transform::LoopFuseSiblingOp>::apply(mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Concept const*, mlir::Operation*, mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.h.inc:477:56 #5 0x55e297494a60 in apply blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.cpp.inc:61:14 #6 0x55e297494a60 in mlir::transform::TransformState::applyTransform(mlir::transform::TransformOpInterface) mlir/lib/Dialect/Transform/Interfaces/TransformInterfaces.cpp:953:48 #7 0x55e294646a8d in applySequenceBlock(mlir::Block&, mlir::transform::FailurePropagationMode, mlir::transform::TransformState&, mlir::transform::TransformResults&) mlir/lib/Dialect/Transform/IR/TransformOps.cpp:1788:15 #8 0x55e29464f927 in mlir::transform::NamedSequenceOp::apply(mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) mlir/lib/Dialect/Transform/IR/TransformOps.cpp:2155:10 #9 0x55e2945d28ee in mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Model<mlir::transform::NamedSequenceOp>::apply(mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Concept const*, mlir::Operation*, mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.h.inc:477:56 #10 0x55e297494a60 in apply blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.cpp.inc:61:14 #11 0x55e297494a60 in mlir::transform::TransformState::applyTransform(mlir::transform::TransformOpInterface) mlir/lib/Dialect/Transform/Interfaces/TransformInterfaces.cpp:953:48 #12 0x55e2974a5fe2 in mlir::transform::applyTransforms(mlir::Operation*, mlir::transform::TransformOpInterface, mlir::RaggedArray<llvm::PointerUnion<mlir::Operation*, mlir::Attribute, mlir::Value>> const&, mlir::transform::TransformOptions const&, bool) mlir/lib/Dialect/Transform/Interfaces/TransformInterfaces.cpp:2016:16 #13 0x55e2945888d7 in mlir::transform::applyTransformNamedSequence(mlir::RaggedArray<llvm::PointerUnion<mlir::Operation*, mlir::Attribute, mlir::Value>>, mlir::transform::TransformOpInterface, mlir::ModuleOp, mlir::transform::TransformOptions const&) mlir/lib/Dialect/Transform/Transforms/TransformInterpreterUtils.cpp:234:10 #14 0x55e294582446 in (anonymous namespace)::InterpreterPass::runOnOperation() mlir/lib/Dialect/Transform/Transforms/InterpreterPass.cpp:147:16 #15 0x55e2978e93c6 in operator() mlir/lib/Pass/Pass.cpp:527:17 #16 0x55e2978e93c6 in void llvm::function_ref<void ()>::callback_fn<mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int)::$_1>(long) llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12 #17 0x55e2978e207a in operator() llvm/include/llvm/ADT/STLFunctionalExtras.h:68:12 #18 0x55e2978e207a in executeAction<mlir::PassExecutionAction, mlir::Pass &> mlir/include/mlir/IR/MLIRContext.h:275:7 #19 0x55e2978e207a in mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int) mlir/lib/Pass/Pass.cpp:521:21 #20 0x55e2978e5fbf in runPipeline mlir/lib/Pass/Pass.cpp:593:16 #21 0x55e2978e5fbf in mlir::PassManager::runPasses(mlir::Operation*, mlir::AnalysisManager) mlir/lib/Pass/Pass.cpp:904:10 #22 0x55e2978e5b65 in mlir::PassManager::run(mlir::Operation*) mlir/lib/Pass/Pass.cpp:884:60 #23 0x55e291ebb460 in performActions(llvm::raw_ostream&, std::__u::shared_ptr<llvm::SourceMgr> const&, mlir::MLIRContext*, mlir::MlirOptMainConfig const&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:408:17 #24 0x55e291ebabd9 in processBuffer mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:481:9 #25 0x55e291ebabd9 in operator() mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:548:12 #26 0x55e291ebabd9 in llvm::LogicalResult llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>::callback_fn<mlir::MlirOptMain(llvm::raw_ostream&, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&)::$_0>(long, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&) llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12 #27 0x55e297b1cffe in operator() llvm/include/llvm/ADT/STLFunctionalExtras.h:68:12 #28 0x55e297b1cffe in mlir::splitAndProcessBuffer(std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>, llvm::raw_ostream&, llvm::StringRef, llvm::StringRef)::$_0::operator()(llvm::StringRef) const mlir/lib/Support/ToolUtilities.cpp:86:16 #29 0x55e297b1c9c5 in interleave<const llvm::StringRef *, (lambda at mlir/lib/Support/ToolUtilities.cpp:79:23), (lambda at llvm/include/llvm/ADT/STLExtras.h:2147:49), void> llvm/include/llvm/ADT/STLExtras.h:2125:3 #30 0x55e297b1c9c5 in interleave<llvm::SmallVector<llvm::StringRef, 8U>, (lambda at mlir/lib/Support/ToolUtilities.cpp:79:23), llvm::raw_ostream, llvm::StringRef> llvm/include/llvm/ADT/STLExtras.h:2147:3 #31 0x55e297b1c9c5 in mlir::splitAndProcessBuffer(std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>, llvm::raw_ostream&, llvm::StringRef, llvm::StringRef) mlir/lib/Support/ToolUtilities.cpp:89:3 #32 0x55e291eb0cf0 in mlir::MlirOptMain(llvm::raw_ostream&, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:551:10 #33 0x55e291eb115c in mlir::MlirOptMain(int, char**, llvm::StringRef, llvm::StringRef, mlir::DialectRegistry&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:589:14 #34 0x55e291eb15f8 in mlir::MlirOptMain(int, char**, llvm::StringRef, mlir::DialectRegistry&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:605:10 #35 0x55e29130d1be in main mlir/tools/mlir-opt/mlir-opt.cpp:311:33 #36 0x7fbcf3fff3d3 in __libc_start_main (/usr/grte/v5/lib64/libc.so.6+0x613d3) (BuildId: 9a996398ce14a94560b0c642eb4f6e94) #37 0x55e2912365a9 in _start /usr/grte/v5/debug-src/src/csu/../sysdeps/x86_64/start.S:120 0x502000006cd8 is located 8 bytes inside of 16-byte region [0x502000006cd0,0x502000006ce0) freed by thread T0 here: #0 0x55e29130b7e2 in operator delete(void*, unsigned long) compiler-rt/lib/asan/asan_new_delete.cpp:155:3 #1 0x55e2979eb657 in __libcpp_operator_delete<void *, unsigned long> #2 0x55e2979eb657 in __do_deallocate_handle_size<> #3 0x55e2979eb657 in __libcpp_deallocate #4 0x55e2979eb657 in deallocate #5 0x55e2979eb657 in deallocate #6 0x55e2979eb657 in operator() #7 0x55e2979eb657 in ~vector #8 0x55e2979eb657 in mlir::Block::~Block() mlir/lib/IR/Block.cpp:24:1 #9 0x55e2979ebc17 in deleteNode llvm/include/llvm/ADT/ilist.h:42:39 #10 0x55e2979ebc17 in erase llvm/include/llvm/ADT/ilist.h:205:5 #11 0x55e2979ebc17 in erase llvm/include/llvm/ADT/ilist.h:209:39 #12 0x55e2979ebc17 in mlir::Block::erase() mlir/lib/IR/Block.cpp:67:28 #13 0x55e297aef978 in mlir::RewriterBase::eraseBlock(mlir::Block*) mlir/lib/IR/PatternMatch.cpp:245:10 #14 0x55e297af0563 in mlir::RewriterBase::inlineBlockBefore(mlir::Block*, mlir::Block*, llvm::ilist_iterator<llvm::ilist_detail::node_options<mlir::Operation, false, false, void, false, void>, false, false>, mlir::ValueRange) mlir/lib/IR/PatternMatch.cpp:331:3 #15 0x55e297af06d8 in mlir::RewriterBase::mergeBlocks(mlir::Block*, mlir::Block*, mlir::ValueRange) mlir/lib/IR/PatternMatch.cpp:341:3 #16 0x55e297036608 in mlir::scf::ForOp::replaceWithAdditionalYields(mlir::RewriterBase&, mlir::ValueRange, bool, std::__u::function<llvm::SmallVector<mlir::Value, 6u> (mlir::OpBuilder&, mlir::Location, llvm::ArrayRef<mlir::BlockArgument>)> const&) mlir/lib/Dialect/SCF/IR/SCF.cpp:575:12 #17 0x55e2970673ca in mlir::detail::LoopLikeOpInterfaceInterfaceTraits::Model<mlir::scf::ForOp>::replaceWithAdditionalYields(mlir::detail::LoopLikeOpInterfaceInterfaceTraits::Concept const*, mlir::Operation*, mlir::RewriterBase&, mlir::ValueRange, bool, std::__u::function<llvm::SmallVector<mlir::Value, 6u> (mlir::OpBuilder&, mlir::Location, llvm::ArrayRef<mlir::BlockArgument>)> const&) blaze-out/k8-opt-asan/bin/mlir/include/mlir/Interfaces/LoopLikeInterface.h.inc:658:56 #18 0x55e2978d5feb in replaceWithAdditionalYields blaze-out/k8-opt-asan/bin/mlir/include/mlir/Interfaces/LoopLikeInterface.cpp.inc:105:14 #19 0x55e2978d5feb in mlir::createFused(mlir::LoopLikeOpInterface, mlir::LoopLikeOpInterface, mlir::RewriterBase&, std::__u::function<llvm::SmallVector<mlir::Value, 6u> (mlir::OpBuilder&, mlir::Location, llvm::ArrayRef<mlir::BlockArgument>)>, llvm::function_ref<void (mlir::RewriterBase&, mlir::LoopLikeOpInterface, mlir::LoopLikeOpInterface&, mlir::IRMapping)>) mlir/lib/Interfaces/LoopLikeInterface.cpp:135:14 #20 0x55e2952a614b in mlir::fuseIndependentSiblingForLoops(mlir::scf::ForOp, mlir::scf::ForOp, mlir::RewriterBase&) mlir/lib/Dialect/SCF/Utils/Utils.cpp:1398:43 #21 0x55e291480c6f in mlir::transform::LoopFuseSiblingOp::apply(mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) mlir/lib/Dialect/SCF/TransformOps/SCFTransformOps.cpp:482:17 #22 0x55e29149ed5e in mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Model<mlir::transform::LoopFuseSiblingOp>::apply(mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Concept const*, mlir::Operation*, mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.h.inc:477:56 #23 0x55e297494a60 in apply blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.cpp.inc:61:14 #24 0x55e297494a60 in mlir::transform::TransformState::applyTransform(mlir::transform::TransformOpInterface) mlir/lib/Dialect/Transform/Interfaces/TransformInterfaces.cpp:953:48 #25 0x55e294646a8d in applySequenceBlock(mlir::Block&, mlir::transform::FailurePropagationMode, mlir::transform::TransformState&, mlir::transform::TransformResults&) mlir/lib/Dialect/Transform/IR/TransformOps.cpp:1788:15 #26 0x55e29464f927 in mlir::transform::NamedSequenceOp::apply(mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) mlir/lib/Dialect/Transform/IR/TransformOps.cpp:2155:10 #27 0x55e2945d28ee in mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Model<mlir::transform::NamedSequenceOp>::apply(mlir::transform::detail::TransformOpInterfaceInterfaceTraits::Concept const*, mlir::Operation*, mlir::transform::TransformRewriter&, mlir::transform::TransformResults&, mlir::transform::TransformState&) blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.h.inc:477:56 #28 0x55e297494a60 in apply blaze-out/k8-opt-asan/bin/mlir/include/mlir/Dialect/Transform/Interfaces/TransformInterfaces.cpp.inc:61:14 #29 0x55e297494a60 in mlir::transform::TransformState::applyTransform(mlir::transform::TransformOpInterface) mlir/lib/Dialect/Transform/Interfaces/TransformInterfaces.cpp:953:48 #30 0x55e2974a5fe2 in mlir::transform::applyTransforms(mlir::Operation*, mlir::transform::TransformOpInterface, mlir::RaggedArray<llvm::PointerUnion<mlir::Operation*, mlir::Attribute, mlir::Value>> const&, mlir::transform::TransformOptions const&, bool) mlir/lib/Dialect/Transform/Interfaces/TransformInterfaces.cpp:2016:16 #31 0x55e2945888d7 in mlir::transform::applyTransformNamedSequence(mlir::RaggedArray<llvm::PointerUnion<mlir::Operation*, mlir::Attribute, mlir::Value>>, mlir::transform::TransformOpInterface, mlir::ModuleOp, mlir::transform::TransformOptions const&) mlir/lib/Dialect/Transform/Transforms/TransformInterpreterUtils.cpp:234:10 #32 0x55e294582446 in (anonymous namespace)::InterpreterPass::runOnOperation() mlir/lib/Dialect/Transform/Transforms/InterpreterPass.cpp:147:16 #33 0x55e2978e93c6 in operator() mlir/lib/Pass/Pass.cpp:527:17 #34 0x55e2978e93c6 in void llvm::function_ref<void ()>::callback_fn<mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int)::$_1>(long) llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12 #35 0x55e2978e207a in operator() llvm/include/llvm/ADT/STLFunctionalExtras.h:68:12 #36 0x55e2978e207a in executeAction<mlir::PassExecutionAction, mlir::Pass &> mlir/include/mlir/IR/MLIRContext.h:275:7 #37 0x55e2978e207a in mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int) mlir/lib/Pass/Pass.cpp:521:21 #38 0x55e2978e5fbf in runPipeline mlir/lib/Pass/Pass.cpp:593:16 #39 0x55e2978e5fbf in mlir::PassManager::runPasses(mlir::Operation*, mlir::AnalysisManager) mlir/lib/Pass/Pass.cpp:904:10 #40 0x55e2978e5b65 in mlir::PassManager::run(mlir::Operation*) mlir/lib/Pass/Pass.cpp:884:60 #41 0x55e291ebb460 in performActions(llvm::raw_ostream&, std::__u::shared_ptr<llvm::SourceMgr> const&, mlir::MLIRContext*, mlir::MlirOptMainConfig const&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:408:17 #42 0x55e291ebabd9 in processBuffer mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:481:9 #43 0x55e291ebabd9 in operator() mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:548:12 #44 0x55e291ebabd9 in llvm::LogicalResult llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>::callback_fn<mlir::MlirOptMain(llvm::raw_ostream&, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&)::$_0>(long, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&) llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12 #45 0x55e297b1cffe in operator() llvm/include/llvm/ADT/STLFunctionalExtras.h:68:12 #46 0x55e297b1cffe in mlir::splitAndProcessBuffer(std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>, llvm::raw_ostream&, llvm::StringRef, llvm::StringRef)::$_0::operator()(llvm::StringRef) const mlir/lib/Support/ToolUtilities.cpp:86:16 #47 0x55e297b1c9c5 in interleave<const llvm::StringRef *, (lambda at mlir/lib/Support/ToolUtilities.cpp:79:23), (lambda at llvm/include/llvm/ADT/STLExtras.h:2147:49), void> llvm/include/llvm/ADT/STLExtras.h:2125:3 #48 0x55e297b1c9c5 in interleave<llvm::SmallVector<llvm::StringRef, 8U>, (lambda at mlir/lib/Support/ToolUtilities.cpp:79:23), llvm::raw_ostream, llvm::StringRef> llvm/include/llvm/ADT/STLExtras.h:2147:3 #49 0x55e297b1c9c5 in mlir::splitAndProcessBuffer(std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>, llvm::raw_ostream&, llvm::StringRef, llvm::StringRef) mlir/lib/Support/ToolUtilities.cpp:89:3 #50 0x55e291eb0cf0 in mlir::MlirOptMain(llvm::raw_ostream&, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:551:10 #51 0x55e291eb115c in mlir::MlirOptMain(int, char**, llvm::StringRef, llvm::StringRef, mlir::DialectRegistry&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:589:14 previously allocated by thread T0 here: #0 0x55e29130ab5d in operator new(unsigned long) compiler-rt/lib/asan/asan_new_delete.cpp:86:3 #1 0x55e2979ed5d4 in __libcpp_operator_new<unsigned long> #2 0x55e2979ed5d4 in __libcpp_allocate #3 0x55e2979ed5d4 in allocate #4 0x55e2979ed5d4 in __allocate_at_least<std::__u::allocator<mlir::BlockArgument> > #5 0x55e2979ed5d4 in __split_buffer #6 0x55e2979ed5d4 in mlir::BlockArgument* std::__u::vector<mlir::BlockArgument, std::__u::allocator<mlir::BlockArgument>>::__push_back_slow_path<mlir::BlockArgument const&>(mlir::BlockArgument const&) #7 0x55e2979ec0f2 in push_back #8 0x55e2979ec0f2 in mlir::Block::addArgument(mlir::Type, mlir::Location) mlir/lib/IR/Block.cpp:154:13 #9 0x55e29796e457 in parseRegionBody mlir/lib/AsmParser/Parser.cpp:2172:34 #10 0x55e29796e457 in (anonymous namespace)::OperationParser::parseRegion(mlir::Region&, llvm::ArrayRef<mlir::OpAsmParser::Argument>, bool) mlir/lib/AsmParser/Parser.cpp:2121:7 #11 0x55e29796b25e in (anonymous namespace)::CustomOpAsmParser::parseRegion(mlir::Region&, llvm::ArrayRef<mlir::OpAsmParser::Argument>, bool) mlir/lib/AsmParser/Parser.cpp:1785:16 #12 0x55e297035742 in mlir::scf::ForOp::parse(mlir::OpAsmParser&, mlir::OperationState&) mlir/lib/Dialect/SCF/IR/SCF.cpp:521:14 #13 0x55e291322c18 in llvm::ParseResult llvm::detail::UniqueFunctionBase<llvm::ParseResult, mlir::OpAsmParser&, mlir::OperationState&>::CallImpl<llvm::ParseResult (*)(mlir::OpAsmParser&, mlir::OperationState&)>(void*, mlir::OpAsmParser&, mlir::OperationState&) llvm/include/llvm/ADT/FunctionExtras.h:220:12 #14 0x55e29795bea3 in operator() llvm/include/llvm/ADT/FunctionExtras.h:384:12 #15 0x55e29795bea3 in callback_fn<llvm::unique_function<llvm::ParseResult (mlir::OpAsmParser &, mlir::OperationState &)> > llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12 #16 0x55e29795bea3 in operator() llvm/include/llvm/ADT/STLFunctionalExtras.h:68:12 #17 0x55e29795bea3 in parseOperation mlir/lib/AsmParser/Parser.cpp:1521:9 #18 0x55e29795bea3 in parseCustomOperation mlir/lib/AsmParser/Parser.cpp:2017:19 #19 0x55e29795bea3 in (anonymous namespace)::OperationParser::parseOperation() mlir/lib/AsmParser/Parser.cpp:1174:10 #20 0x55e297971d20 in parseBlockBody mlir/lib/AsmParser/Parser.cpp:2296:9 #21 0x55e297971d20 in (anonymous namespace)::OperationParser::parseBlock(mlir::Block*&) mlir/lib/AsmParser/Parser.cpp:2226:12 #22 0x55e29796e4f5 in parseRegionBody mlir/lib/AsmParser/Parser.cpp:2184:7 #23 0x55e29796e4f5 in (anonymous namespace)::OperationParser::parseRegion(mlir::Region&, llvm::ArrayRef<mlir::OpAsmParser::Argument>, bool) mlir/lib/AsmParser/Parser.cpp:2121:7 #24 0x55e29796b25e in (anonymous namespace)::CustomOpAsmParser::parseRegion(mlir::Region&, llvm::ArrayRef<mlir::OpAsmParser::Argument>, bool) mlir/lib/AsmParser/Parser.cpp:1785:16 #25 0x55e29796b2cf in (anonymous namespace)::CustomOpAsmParser::parseOptionalRegion(mlir::Region&, llvm::ArrayRef<mlir::OpAsmParser::Argument>, bool) mlir/lib/AsmParser/Parser.cpp:1796:12 #26 0x55e2978d89ff in mlir::function_interface_impl::parseFunctionOp(mlir::OpAsmParser&, mlir::OperationState&, bool, mlir::StringAttr, llvm::function_ref<mlir::Type (mlir::Builder&, llvm::ArrayRef<mlir::Type>, llvm::ArrayRef<mlir::Type>, mlir::function_interface_impl::VariadicFlag, std::__u::basic_string<char, std::__u::char_traits<char>, std::__u::allocator<char>>&)>, mlir::StringAttr, mlir::StringAttr) mlir/lib/Interfaces/FunctionImplementation.cpp:232:14 #27 0x55e2969ba41d in mlir::func::FuncOp::parse(mlir::OpAsmParser&, mlir::OperationState&) mlir/lib/Dialect/Func/IR/FuncOps.cpp:203:10 #28 0x55e291322c18 in llvm::ParseResult llvm::detail::UniqueFunctionBase<llvm::ParseResult, mlir::OpAsmParser&, mlir::OperationState&>::CallImpl<llvm::ParseResult (*)(mlir::OpAsmParser&, mlir::OperationState&)>(void*, mlir::OpAsmParser&, mlir::OperationState&) llvm/include/llvm/ADT/FunctionExtras.h:220:12 #29 0x55e29795bea3 in operator() llvm/include/llvm/ADT/FunctionExtras.h:384:12 #30 0x55e29795bea3 in callback_fn<llvm::unique_function<llvm::ParseResult (mlir::OpAsmParser &, mlir::OperationState &)> > llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12 #31 0x55e29795bea3 in operator() llvm/include/llvm/ADT/STLFunctionalExtras.h:68:12 #32 0x55e29795bea3 in parseOperation mlir/lib/AsmParser/Parser.cpp:1521:9 #33 0x55e29795bea3 in parseCustomOperation mlir/lib/AsmParser/Parser.cpp:2017:19 #34 0x55e29795bea3 in (anonymous namespace)::OperationParser::parseOperation() mlir/lib/AsmParser/Parser.cpp:1174:10 #35 0x55e297959b78 in parse mlir/lib/AsmParser/Parser.cpp:2725:20 #36 0x55e297959b78 in mlir::parseAsmSourceFile(llvm::SourceMgr const&, mlir::Block*, mlir::ParserConfig const&, mlir::AsmParserState*, mlir::AsmParserCodeCompleteContext*) mlir/lib/AsmParser/Parser.cpp:2785:41 #37 0x55e29790d5c2 in mlir::parseSourceFile(std::__u::shared_ptr<llvm::SourceMgr> const&, mlir::Block*, mlir::ParserConfig const&, mlir::LocationAttr*) mlir/lib/Parser/Parser.cpp:46:10 #38 0x55e291ebbfe2 in parseSourceFile<mlir::ModuleOp, const std::__u::shared_ptr<llvm::SourceMgr> &> mlir/include/mlir/Parser/Parser.h:159:14 #39 0x55e291ebbfe2 in parseSourceFile<mlir::ModuleOp> mlir/include/mlir/Parser/Parser.h:189:10 #40 0x55e291ebbfe2 in mlir::parseSourceFileForTool(std::__u::shared_ptr<llvm::SourceMgr> const&, mlir::ParserConfig const&, bool) mlir/include/mlir/Tools/ParseUtilities.h:31:12 #41 0x55e291ebb263 in performActions(llvm::raw_ostream&, std::__u::shared_ptr<llvm::SourceMgr> const&, mlir::MLIRContext*, mlir::MlirOptMainConfig const&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:383:33 #42 0x55e291ebabd9 in processBuffer mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:481:9 #43 0x55e291ebabd9 in operator() mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:548:12 #44 0x55e291ebabd9 in llvm::LogicalResult llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>::callback_fn<mlir::MlirOptMain(llvm::raw_ostream&, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&)::$_0>(long, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&) llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12 #45 0x55e297b1cffe in operator() llvm/include/llvm/ADT/STLFunctionalExtras.h:68:12 #46 0x55e297b1cffe in mlir::splitAndProcessBuffer(std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>, llvm::raw_ostream&, llvm::StringRef, llvm::StringRef)::$_0::operator()(llvm::StringRef) const mlir/lib/Support/ToolUtilities.cpp:86:16 #47 0x55e297b1c9c5 in interleave<const llvm::StringRef *, (lambda at mlir/lib/Support/ToolUtilities.cpp:79:23), (lambda at llvm/include/llvm/ADT/STLExtras.h:2147:49), void> llvm/include/llvm/ADT/STLExtras.h:2125:3 #48 0x55e297b1c9c5 in interleave<llvm::SmallVector<llvm::StringRef, 8U>, (lambda at mlir/lib/Support/ToolUtilities.cpp:79:23), llvm::raw_ostream, llvm::StringRef> llvm/include/llvm/ADT/STLExtras.h:2147:3 #49 0x55e297b1c9c5 in mlir::splitAndProcessBuffer(std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<llvm::LogicalResult (std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>, llvm::raw_ostream&, llvm::StringRef, llvm::StringRef) mlir/lib/Support/ToolUtilities.cpp:89:3 #50 0x55e291eb0cf0 in mlir::MlirOptMain(llvm::raw_ostream&, std::__u::unique_ptr<llvm::MemoryBuffer, std::__u::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:551:10 #51 0x55e291eb115c in mlir::MlirOptMain(int, char**, llvm::StringRef, llvm::StringRef, mlir::DialectRegistry&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:589:14 #52 0x55e291eb15f8 in mlir::MlirOptMain(int, char**, llvm::StringRef, mlir::DialectRegistry&) mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:605:10 #53 0x55e29130d1be in main mlir/tools/mlir-opt/mlir-opt.cpp:311:33 #54 0x7fbcf3fff3d3 in __libc_start_main (/usr/grte/v5/lib64/libc.so.6+0x613d3) (BuildId: 9a996398ce14a94560b0c642eb4f6e94) #55 0x55e2912365a9 in _start /usr/grte/v5/debug-src/src/csu/../sysdeps/x86_64/start.S:120 SUMMARY: AddressSanitizer: heap-use-after-free mlir/include/mlir/IR/IRMapping.h:40:11 in map<llvm::MutableArrayRef<mlir::BlockArgument> &, llvm::MutableArrayRef<mlir::BlockArgument>, nullptr> Shadow bytes around the buggy address: 0x502000006a00: fa fa 00 fa fa fa 00 00 fa fa 00 fa fa fa 00 fa 0x502000006a80: fa fa 00 fa fa fa 00 00 fa fa 00 00 fa fa 00 00 0x502000006b00: fa fa 00 00 fa fa 00 00 fa fa 00 fa fa fa 00 fa 0x502000006b80: fa fa 00 fa fa fa 00 fa fa fa 00 00 fa fa 00 00 0x502000006c00: fa fa 00 00 fa fa 00 00 fa fa 00 00 fa fa fd fa =>0x502000006c80: fa fa fd fa fa fa fd fd fa fa fd[fd]fa fa fd fd 0x502000006d00: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa 0x502000006d80: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa 0x502000006e00: fa fa 00 fa fa fa 00 fa fa fa 00 00 fa fa 00 fa 0x502000006e80: fa fa 00 fa fa fa 00 00 fa fa 00 fa fa fa 00 fa 0x502000006f00: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb ==4320==ABORTING

… depobj construct (llvm#114221) A codegen crash is occurring when a depend object was initialized with omp_all_memory in the depobj directive. llvm#114214 The root cause of issue looks to be the improper handling of the dependency list when omp_all_memory was specified. The change introduces the use of OMPTaskDataTy to manage dependencies. The buildDependences function is called to construct the dependency list, and the list is iterated over to emit and store the dependencies. Reduced Test Case : ``` #include <omp.h> int main() { omp_depend_t obj; #pragma omp depobj(obj) depend(inout: omp_all_memory) } ``` ``` #1 0x0000000003de6623 SignalHandler(int) Signals.cpp:0:0 #2 0x00007f8e4a6b990f (/lib64/libpthread.so.0+0x1690f) #3 0x00007f8e4a117d2a raise (/lib64/libc.so.6+0x4ad2a) #4 0x00007f8e4a1193e4 abort (/lib64/libc.so.6+0x4c3e4) #5 0x00007f8e4a10fc69 __assert_fail_base (/lib64/libc.so.6+0x42c69) #6 0x00007f8e4a10fcf1 __assert_fail (/lib64/libc.so.6+0x42cf1) #7 0x0000000004114367 clang::CodeGen::CodeGenFunction::EmitOMPDepobjDirective(clang::OMPDepobjDirective const&) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x4114367) #8 0x00000000040f8fac clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*, llvm::ArrayRef<clang::Attr const*>) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x40f8fac) #9 0x00000000040ff4fb clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt const&, bool, clang::CodeGen::AggValueSlot) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x40ff4fb) #10 0x00000000041847b2 clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::Stmt const*) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x41847b2) #11 0x0000000004199e4a clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl, llvm::Function*, clang::CodeGen::CGFunctionInfo const&) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x4199e4a) #12 0x00000000041f7b9d clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x41f7b9d) #13 0x00000000041f16a3 clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x41f16a3) #14 0x00000000041fd954 clang::CodeGen::CodeGenModule::EmitDeferred() (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x41fd954) #15 0x0000000004200277 clang::CodeGen::CodeGenModule::Release() (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x4200277) #16 0x00000000046b6a49 (anonymous namespace)::CodeGeneratorImpl::HandleTranslationUnit(clang::ASTContext&) ModuleBuilder.cpp:0:0 #17 0x00000000046b4cb6 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x46b4cb6) #18 0x0000000006204d5c clang::ParseAST(clang::Sema&, bool, bool) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x6204d5c) #19 0x000000000496b278 clang::FrontendAction::Execute() (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x496b278) #20 0x00000000048dd074 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x48dd074) #21 0x0000000004a38092 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0x4a38092) #22 0x0000000000fd4e9c cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0xfd4e9c) #23 0x0000000000fcca73 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0 #24 0x0000000000fd140c clang_main(int, char**, llvm::ToolContext const&) (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0xfd140c) #25 0x0000000000ee2ef3 main (/opt/cray/pe/cce/18.0.1/cce-clang/x86_64/bin/clang-18+0xee2ef3) #26 0x00007f8e4a10224c __libc_start_main (/lib64/libc.so.6+0x3524c) #27 0x0000000000fcaae9 _start /home/abuild/rpmbuild/BUILD/glibc-2.31/csu/../sysdeps/x86_64/start.S:120:0 clang: error: unable to execute command: Aborted ``` --------- Co-authored-by: Chandra Ghale <ghale@pe31.hpc.amslabs.hpecorp.net>

This was reported by a test-suite run in a local ASAN/UBSAN build on my M1: ``` ================================================================= ==69533==ERROR: AddressSanitizer: stack-use-after-scope on address 0x000106b68e50 at pc 0x00011cacfaa4 bp 0x00016b8c7ff0 sp 0x00016b8c7fe8 READ of size 8 at 0x000106b68e50 thread T0 #0 0x11cacfaa0 in lldb_private::ValueObject::GetChildAtNamePath(llvm::ArrayRef<llvm::StringRef>) ValueObject.cpp:471 #1 0x11ce85908 in lldb_private::formatters::NSTimeZoneSummaryProvider(lldb_private::ValueObject&, lldb_private::Stream&, lldb_private::TypeSummaryOptions const&) Cocoa.cpp:157 #2 0x11c51bad0 in lldb_private::CXXFunctionSummaryFormat::FormatObject(lldb_private::ValueObject*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>&, lldb_private::TypeSummaryOptions const&) TypeSummary.cpp:129 #3 0x11cad2eb4 in lldb_private::ValueObject::GetSummaryAsCString(lldb_private::TypeSummaryImpl*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>&, lldb_private::TypeSummaryOptions const&) ValueObject.cpp:691 #4 0x11cad2b18 in lldb_private::ValueObject::GetSummaryAsCString(lldb_private::TypeSummaryImpl*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>&, lldb::LanguageType) ValueObject.cpp:648 #5 0x11c528d38 in lldb_private::ValueObjectPrinter::GetValueSummaryError(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>&, std::__1::basic_strin g<char, std::__1::char_traits<char>, std::__1::allocator<char>>&) ValueObjectPrinter.cpp:402 #6 0x11c526604 in lldb_private::ValueObjectPrinter::PrintValueAndSummaryIfNeeded(bool&, bool&) ValueObjectPrinter.cpp:420 #7 0x11c524748 in lldb_private::ValueObjectPrinter::PrintValueObject() ValueObjectPrinter.cpp:91 #8 0x11cae7a10 in lldb_private::ValueObject::Dump(lldb_private::Stream&, lldb_private::DumpValueObjectOptions const&) ValueObject.cpp:2826 #9 0x11d9ed628 in CommandObjectFrameVariable::DoExecute(lldb_private::Args&, lldb_private::CommandReturnObject&) CommandObjectFrame.cpp:679 #10 0x11c67f3e4 in lldb_private::CommandObjectParsed::Execute(char const*, lldb_private::CommandReturnObject&) CommandObject.cpp:826 #11 0x11c65f9d4 in lldb_private::CommandInterpreter::HandleCommand(char const*, lldb_private::LazyBool, lldb_private::CommandReturnObject&, bool) CommandInterpreter.cpp:2101 #12 0x11bdb72a8 in lldb::SBCommandInterpreter::HandleCommand(char const*, lldb::SBExecutionContext&, lldb::SBCommandReturnObject&, bool) SBCommandInterpreter.cpp:194 #13 0x11bdb6a00 in lldb::SBCommandInterpreter::HandleCommand(char const*, lldb::SBCommandReturnObject&, bool) SBCommandInterpreter.cpp:176 #14 0x11c1612e8 in _wrap_SBCommandInterpreter_HandleCommand(_object*, _object*) LLDBWrapPython.cpp:16926 ``` I'm not sure why this doesn't show up in the public ASAN bot, but binding a temporary initializer-list to a non-owning `ArrayRef` like this isn't safe.

…an-to-20240723 [lldb][ObjC] Fix use-after-scope in NSTimeZoneSummaryProvider This was reported by a test-suite run in a local ASAN/UBSAN build on my M1: ``` ================================================================= ==69533==ERROR: AddressSanitizer: stack-use-after-scope on address 0x000106b68e50 at pc 0x00011cacfaa4 bp 0x00016b8c7ff0 sp 0x00016b8c7fe8 READ of size 8 at 0x000106b68e50 thread T0 #0 0x11cacfaa0 in lldb_private::ValueObject::GetChildAtNamePath(llvm::ArrayRef<llvm::StringRef>) ValueObject.cpp:471 #1 0x11ce85908 in lldb_private::formatters::NSTimeZoneSummaryProvider(lldb_private::ValueObject&, lldb_private::Stream&, lldb_private::TypeSummaryOptions const&) Cocoa.cpp:157 #2 0x11c51bad0 in lldb_private::CXXFunctionSummaryFormat::FormatObject(lldb_private::ValueObject*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>&, lldb_private::TypeSummaryOptions const&) TypeSummary.cpp:129 #3 0x11cad2eb4 in lldb_private::ValueObject::GetSummaryAsCString(lldb_private::TypeSummaryImpl*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>&, lldb_private::TypeSummaryOptions const&) ValueObject.cpp:691 #4 0x11cad2b18 in lldb_private::ValueObject::GetSummaryAsCString(lldb_private::TypeSummaryImpl*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>&, lldb::LanguageType) ValueObject.cpp:648 #5 0x11c528d38 in lldb_private::ValueObjectPrinter::GetValueSummaryError(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>&, std::__1::basic_strin g<char, std::__1::char_traits<char>, std::__1::allocator<char>>&) ValueObjectPrinter.cpp:402 #6 0x11c526604 in lldb_private::ValueObjectPrinter::PrintValueAndSummaryIfNeeded(bool&, bool&) ValueObjectPrinter.cpp:420 #7 0x11c524748 in lldb_private::ValueObjectPrinter::PrintValueObject() ValueObjectPrinter.cpp:91 #8 0x11cae7a10 in lldb_private::ValueObject::Dump(lldb_private::Stream&, lldb_private::DumpValueObjectOptions const&) ValueObject.cpp:2826 #9 0x11d9ed628 in CommandObjectFrameVariable::DoExecute(lldb_private::Args&, lldb_private::CommandReturnObject&) CommandObjectFrame.cpp:679 #10 0x11c67f3e4 in lldb_private::CommandObjectParsed::Execute(char const*, lldb_private::CommandReturnObject&) CommandObject.cpp:826 #11 0x11c65f9d4 in lldb_private::CommandInterpreter::HandleCommand(char const*, lldb_private::LazyBool, lldb_private::CommandReturnObject&, bool) CommandInterpreter.cpp:2101 #12 0x11bdb72a8 in lldb::SBCommandInterpreter::HandleCommand(char const*, lldb::SBExecutionContext&, lldb::SBCommandReturnObject&, bool) SBCommandInterpreter.cpp:194 #13 0x11bdb6a00 in lldb::SBCommandInterpreter::HandleCommand(char const*, lldb::SBCommandReturnObject&, bool) SBCommandInterpreter.cpp:176 #14 0x11c1612e8 in _wrap_SBCommandInterpreter_HandleCommand(_object*, _object*) LLDBWrapPython.cpp:16926 ``` I'm not sure why this doesn't show up in the public ASAN bot, but binding a temporary initializer-list to a non-owning `ArrayRef` like this isn't safe.

…an-to-next [lldb][ObjC] Fix use-after-scope in NSTimeZoneSummaryProvider This was reported by a test-suite run in a local ASAN/UBSAN build on my M1: ``` ================================================================= ==69533==ERROR: AddressSanitizer: stack-use-after-scope on address 0x000106b68e50 at pc 0x00011cacfaa4 bp 0x00016b8c7ff0 sp 0x00016b8c7fe8 READ of size 8 at 0x000106b68e50 thread T0 #0 0x11cacfaa0 in lldb_private::ValueObject::GetChildAtNamePath(llvm::ArrayRef<llvm::StringRef>) ValueObject.cpp:471 #1 0x11ce85908 in lldb_private::formatters::NSTimeZoneSummaryProvider(lldb_private::ValueObject&, lldb_private::Stream&, lldb_private::TypeSummaryOptions const&) Cocoa.cpp:157 #2 0x11c51bad0 in lldb_private::CXXFunctionSummaryFormat::FormatObject(lldb_private::ValueObject*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>&, lldb_private::TypeSummaryOptions const&) TypeSummary.cpp:129 #3 0x11cad2eb4 in lldb_private::ValueObject::GetSummaryAsCString(lldb_private::TypeSummaryImpl*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>&, lldb_private::TypeSummaryOptions const&) ValueObject.cpp:691 #4 0x11cad2b18 in lldb_private::ValueObject::GetSummaryAsCString(lldb_private::TypeSummaryImpl*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>&, lldb::LanguageType) ValueObject.cpp:648 #5 0x11c528d38 in lldb_private::ValueObjectPrinter::GetValueSummaryError(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>&, std::__1::basic_strin g<char, std::__1::char_traits<char>, std::__1::allocator<char>>&) ValueObjectPrinter.cpp:402 #6 0x11c526604 in lldb_private::ValueObjectPrinter::PrintValueAndSummaryIfNeeded(bool&, bool&) ValueObjectPrinter.cpp:420 #7 0x11c524748 in lldb_private::ValueObjectPrinter::PrintValueObject() ValueObjectPrinter.cpp:91 #8 0x11cae7a10 in lldb_private::ValueObject::Dump(lldb_private::Stream&, lldb_private::DumpValueObjectOptions const&) ValueObject.cpp:2826 #9 0x11d9ed628 in CommandObjectFrameVariable::DoExecute(lldb_private::Args&, lldb_private::CommandReturnObject&) CommandObjectFrame.cpp:679 #10 0x11c67f3e4 in lldb_private::CommandObjectParsed::Execute(char const*, lldb_private::CommandReturnObject&) CommandObject.cpp:826 #11 0x11c65f9d4 in lldb_private::CommandInterpreter::HandleCommand(char const*, lldb_private::LazyBool, lldb_private::CommandReturnObject&, bool) CommandInterpreter.cpp:2101 #12 0x11bdb72a8 in lldb::SBCommandInterpreter::HandleCommand(char const*, lldb::SBExecutionContext&, lldb::SBCommandReturnObject&, bool) SBCommandInterpreter.cpp:194 #13 0x11bdb6a00 in lldb::SBCommandInterpreter::HandleCommand(char const*, lldb::SBCommandReturnObject&, bool) SBCommandInterpreter.cpp:176 #14 0x11c1612e8 in _wrap_SBCommandInterpreter_HandleCommand(_object*, _object*) LLDBWrapPython.cpp:16926 ``` I'm not sure why this doesn't show up in the public ASAN bot, but binding a temporary initializer-list to a non-owning `ArrayRef` like this isn't safe.

…onger cause a crash (llvm#116569) This PR fixes a bug introduced by llvm#110199, which causes any half float argument to crash the compiler on MIPS64. Currently compiling this bit of code with `llc -mtriple=mips64`: ``` define void @half_args(half %a) nounwind { entry: ret void } ``` Crashes with the following log: ``` LLVM ERROR: unable to allocate function argument #0 PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. Stack dump: 0. Program arguments: llc -mtriple=mips64 1. Running pass 'Function Pass Manager' on module '<stdin>'. 2. Running pass 'MIPS DAG->DAG Pattern Instruction Selection' on function '@half_args' #0 0x000055a3a4013df8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/davide/Ps2/rps2-tools/prefix/bin/llc+0x32d0df8) #1 0x000055a3a401199e llvm::sys::RunSignalHandlers() (/home/davide/Ps2/rps2-tools/prefix/bin/llc+0x32ce99e) #2 0x000055a3a40144a8 SignalHandler(int) Signals.cpp:0:0 #3 0x00007f00bde558c0 __restore_rt libc_sigaction.c:0:0 #4 0x00007f00bdea462c __pthread_kill_implementation ./nptl/pthread_kill.c:44:76 #5 0x00007f00bde55822 gsignal ./signal/../sysdeps/posix/raise.c:27:6 #6 0x00007f00bde3e4af abort ./stdlib/abort.c:81:7 #7 0x000055a3a3f80e3c llvm::report_fatal_error(llvm::Twine const&, bool) (/home/davide/Ps2/rps2-tools/prefix/bin/llc+0x323de3c) #8 0x000055a3a2e20dfa (/home/davide/Ps2/rps2-tools/prefix/bin/llc+0x20dddfa) #9 0x000055a3a2a34e20 llvm::MipsTargetLowering::LowerFormalArguments(llvm::SDValue, unsigned int, bool, llvm::SmallVectorImpl<llvm::ISD::InputArg> const&, llvm::SDLoc const&, llvm::SelectionDAG&, llvm::SmallVectorImpl<llvm::SDValue>&) const MipsISelLowering.cpp:0:0 #10 0x000055a3a3d896a9 llvm::SelectionDAGISel::LowerArguments(llvm::Function const&) (/home/davide/Ps2/rps2-tools/prefix/bin/llc+0x30466a9) #11 0x000055a3a3e0b3ec llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) (/home/davide/Ps2/rps2-tools/prefix/bin/llc+0x30c83ec) #12 0x000055a3a3e09e21 llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) (/home/davide/Ps2/rps2-tools/prefix/bin/llc+0x30c6e21) #13 0x000055a3a2aae1ca llvm::MipsDAGToDAGISel::runOnMachineFunction(llvm::MachineFunction&) MipsISelDAGToDAG.cpp:0:0 #14 0x000055a3a3e07706 llvm::SelectionDAGISelLegacy::runOnMachineFunction(llvm::MachineFunction&) (/home/davide/Ps2/rps2-tools/prefix/bin/llc+0x30c4706) #15 0x000055a3a3051ed6 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) (/home/davide/Ps2/rps2-tools/prefix/bin/llc+0x230eed6) #16 0x000055a3a35a3ec9 llvm::FPPassManager::runOnFunction(llvm::Function&) (/home/davide/Ps2/rps2-tools/prefix/bin/llc+0x2860ec9) #17 0x000055a3a35ac3b2 llvm::FPPassManager::runOnModule(llvm::Module&) (/home/davide/Ps2/rps2-tools/prefix/bin/llc+0x28693b2) #18 0x000055a3a35a499c llvm::legacy::PassManagerImpl::run(llvm::Module&) (/home/davide/Ps2/rps2-tools/prefix/bin/llc+0x286199c) #19 0x000055a3a262abbb main (/home/davide/Ps2/rps2-tools/prefix/bin/llc+0x18e7bbb) #20 0x00007f00bde3fc4c __libc_start_call_main ./csu/../sysdeps/nptl/libc_start_call_main.h:74:3 #21 0x00007f00bde3fd05 call_init ./csu/../csu/libc-start.c:128:20 #22 0x00007f00bde3fd05 __libc_start_main@GLIBC_2.2.5 ./csu/../csu/libc-start.c:347:5 #23 0x000055a3a2624921 _start /builddir/glibc-2.39/csu/../sysdeps/x86_64/start.S:117:0 ``` This is caused by the fact that after the change, `f16`s are no longer lowered as `f32`s in calls. Two possible fixes are available: - Update calling conventions to properly support passing `f16` as integers. - Update `useFPRegsForHalfType()` to return `true` so that `f16` are still kept in `f32` registers, as before llvm#110199. This PR implements the first solution to not introduce any more ABI changes as llvm#110199 already did. As of what is the correct ABI for halfs, I don't think there is a correct answer. GCC doesn't support halfs on MIPS, and I couldn't find any information on old MIPS ABI manuals either.

## Description This PR fixes a segmentation fault that occurs when passing options requiring arguments via `-Xopenmp-target=<triple>`. The issue was that the function `Driver::getOffloadArchs` did not properly parse the extracted option, but instead assumed it was valid, leading to a crash when incomplete arguments were provided. ## Backtrace ```sh llvm-project/build/bin/clang++ main.cpp -fopenmp=libomp -fopenmp-targets=powerpc64le-ibm-linux-gnu -Xopenmp-target=powerpc64le-ibm-linux-gnu -o PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script. Stack dump: 0. Program arguments: llvm-project/build/bin/clang++ main.cpp -fopenmp=libomp -fopenmp-targets=powerpc64le-ibm-linux-gnu -Xopenmp-target=powerpc64le-ibm-linux-gnu -o 1. Compilation construction 2. Building compilation actions #0 0x0000562fb21c363b llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (llvm-project/build/bin/clang+++0x392f63b) #1 0x0000562fb21c0e3c SignalHandler(int) Signals.cpp:0:0 #2 0x00007fcbf6c81420 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14420) #3 0x0000562fb1fa5d70 llvm::opt::Option::matches(llvm::opt::OptSpecifier) const (llvm-project/build/bin/clang+++0x3711d70) #4 0x0000562fb2a78e7d clang::driver::Driver::getOffloadArchs(clang::driver::Compilation&, llvm::opt::DerivedArgList const&, clang::driver::Action::OffloadKind, clang::driver::ToolChain const*, bool) const (llvm-project/build/bin/clang+++0x41e4e7d) #5 0x0000562fb2a7a9aa clang::driver::Driver::BuildOffloadingActions(clang::driver::Compilation&, llvm::opt::DerivedArgList&, std::pair<clang::driver::types::ID, llvm::opt::Arg const*> const&, clang::driver::Action*) const (.part.1164) Driver.cpp:0:0 #6 0x0000562fb2a7c093 clang::driver::Driver::BuildActions(clang::driver::Compilation&, llvm::opt::DerivedArgList&, llvm::SmallVector<std::pair<clang::driver::types::ID, llvm::opt::Arg const*>, 16u> const&, llvm::SmallVector<clang::driver::Action*, 3u>&) const (llvm-project/build/bin/clang+++0x41e8093) #7 0x0000562fb2a8395d clang::driver::Driver::BuildCompilation(llvm::ArrayRef<char const*>) (llvm-project/build/bin/clang+++0x41ef95d) #8 0x0000562faf92684c clang_main(int, char**, llvm::ToolContext const&) (llvm-project/build/bin/clang+++0x109284c) #9 0x0000562faf826cc6 main (llvm-project/build/bin/clang+++0xf92cc6) #10 0x00007fcbf6699083 __libc_start_main /build/glibc-LcI20x/glibc-2.31/csu/../csu/libc-start.c:342:3 #11 0x0000562faf923a5e _start (llvm-project/build/bin/clang+++0x108fa5e) [1] 2628042 segmentation fault (core dumped) main.cpp -fopenmp=libomp -fopenmp-targets=powerpc64le-ibm-linux-gnu -o ```

Revert "[CompilerRT] Remove sanitizer support for i386 watchsim (#11…

JDevlieghere and others added 9 commits October 21, 2019 16:26

[test] Update YAML mapping in VirtualFileSystemTest

bcb6fcf

The 'bar' directory should be part of the root rather than the file itself. llvm-svn: 374930 (cherry picked from commit 621ce37)

Fix an unused variable introduced in rL374955 / rG21703543.

886854a

Even though this is a unit test, it still may be run under optimization. llvm-svn: 374961 (cherry picked from commit a337806)

RedirectingFileSystem::openFileForRead - replace bitwise & with boole…

4b06991

…an && to fix warning Seems to be just a typo - now matches other instances which do something similar llvm-svn: 374995 (cherry picked from commit 0caee27)

VirtualFileSystem - replace dyn_cast<>+assert with cast<> calls. NFCI.

e6d86f3

Silences a number of clang static analyzer null dereference warnings. llvm-svn: 373325 (cherry picked from commit 7ce3123)

JDevlieghere merged commit f77cf42 into swiftlang:apple/stable/20190619 Oct 28, 2019

JDevlieghere deleted the cherrypick/virtualfilesystem branch October 28, 2019 19:19

marcrasi mentioned this pull request Feb 13, 2020

[lldb] Rewrite Swift completion logic in REPL to not crash [WIP] #662

Closed

adrian-prantl mentioned this pull request Jul 20, 2020

NFC: Refactor clang extra args addition #1444

Merged

JDevlieghere mentioned this pull request Aug 1, 2020

[lldb/Host] Remove TaskPool and replace its uses with llvm::ThreadPool #1576

Merged

kendalharland mentioned this pull request Aug 8, 2024

LLDB test TestCppBitFields.py fails on Windows x86_64 with fatal access violation #9072

Open

nkcsgexi added a commit that referenced this pull request Dec 12, 2024

Merge pull request #9717 from cyndyishida/backOutOfi386

2bfeaa7

Revert "[CompilerRT] Remove sanitizer support for i386 watchsim (#11…

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[VirtualFileSystem] Support virtual working directory in the RedirectingFS #11

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[VirtualFileSystem] Support virtual working directory in the RedirectingFS #11

[VirtualFileSystem] Support virtual working directory in the RedirectingFS #11

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