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Fast forward apple/stable/20190619 to Sep 4. #44

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merged 616 commits into from
Oct 29, 2019

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@adrian-prantl adrian-prantl commented Oct 29, 2019

This cherry-picks all cleanly-applying patches between the branch point in 20190619 and the point where the swift/master branch was cut in September.

The following patches are not included (because they didn't apply cleanly or were already on the branch):

# git cherry-pick -x 60bd7a9c13bdb6da854c4a7b595407c0ce18b55d
# git cherry-pick -x f44d7c3f9f577dbac7729fe08036ba729b5056a4
# git cherry-pick -x fc0d766511e9c77ccf54bd5bfd8bed342ca6dd18
# git cherry-pick -x 63b921f01da907fdb68bb7406fc6b556db265068
# git cherry-pick -x f1883637f2dc70643d735013f54ecc414109c0fb
# git cherry-pick -x 438dfcffe96f6a2bbc8c34331dd6bd3850903165
# git cherry-pick -x 2359fecf82dbf85d6e05d09d7b3be683f613c236
# git cherry-pick -x e8bffd3ff0289cd317d457e2562e130729c3b8d2
# git cherry-pick -x 86814bf658a64ac11e548f0a133c9a7d9ca3f831
# git cherry-pick -x eb1b4c5d4c95e73bdf141d2bbc5d7afd1a7e0372
# git cherry-pick -x 69b63da1673d4f4b97844bb259c7f3dc325b437a
# git cherry-pick -x e9be72a3b3b941203360373b675328f07b6759c1
# git cherry-pick -x 96b44c77f8fbc0c704c036b82ea173289b93aa72
# git cherry-pick -x d9b948b6eb7362f36264b71795dab179906e36be
# git cherry-pick -x a885afa9fa8cab3b34f1ddf3d21535f88b662881
# git cherry-pick -x b5e4d7de17155486f10693d0532f5fca82f41508
# git cherry-pick -x da60fc813c225209cadbd137ce17b05e993acd8e
# git cherry-pick -x f2410017930651c2eabf62506c10f50986a561bc
# git cherry-pick -x 216944ee035aa720cc94034f3aa68064eda80469
# git cherry-pick -x c0a9b1edca4192acc6128e92cdd17a5553118745
# git cherry-pick -x 4ee1376dc62600ec8a489e326e8bacebc2f9ac30
# git cherry-pick -x a8f3ae7c9cefa8296d119f92ca444087cdccf712
# git cherry-pick -x d35b42f20a48d6fd9c1f8fce095c37794d49806c

bulbazord and others added 30 commits October 28, 2019 16:38
llvm-svn: 368638
(cherry picked from commit f4446f1)
We have no test coverage for the IOHandler code that is doing the
completion in the command line. This is adding a pexpect-based test
as a preparation for the switch to using CompletionRequest in the
whole completion machinery.

llvm-svn: 368679
(cherry picked from commit 2515640)
It seems the broken guard variable check for Windows was a feature(TM)
and not a bug, so let's keep add a flag to the guard check that keeps
the old behavior in the places where we ignored guard variables before.

llvm-svn: 368688
(cherry picked from commit 7f7b296)
Apparently we need to check for a suffix, not a prefix. This broke
probably broke expression evaluation on Windows.

llvm-svn: 368695
(cherry picked from commit a23b250)
Summary:
Ideally CompilerType would have no knowledge of clang or any individual
TypeSystem. Decoupling clang is relatively straightforward.

Differential Revision: https://reviews.llvm.org/D66102

llvm-svn: 368741
(cherry picked from commit bddab07)
The line number table header was substantially revised in DWARF 5 and is
not fully supported by LLDB's current debug line implementation.

This patch replaces the LLDB debug line parser with its counterpart in
LLVM. This was possible because of the limited contact surface between
the code to parse the DWARF debug line section and the rest of LLDB.

We pay a small cost in terms of performance and memory usage. This is
something we plan to address in the near future.

Differential revision: https://reviews.llvm.org/D62570

llvm-svn: 368742
(cherry picked from commit 2353393)
Try to guess the FileSpec path style before defaulting to native.

llvm-svn: 368746
(cherry picked from commit 4d82fa6)
Summary: Thanks to Hui Huang and the reviewers for all the help with this patch.

Reviewers: labath, Hui, jfb, clayborg, amccarth

Reviewed By: labath

Subscribers: amccarth, compnerd, dexonsmith, mgorny, jfb, teemperor, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D63165

llvm-svn: 368759
(cherry picked from commit 5146a9e)
My previous change didn't fix the Windows bot. This patch is an attempt
to make guessing the path style more robust by first looking at the
compile dir and falling back to the actual file if that's unsuccessful.

llvm-svn: 368772
(cherry picked from commit 3cb3aa2)
Summary: Thanks to Hui Huang and reviewers for all the help with this patch!

Reviewers: labath, jfb, clayborg

Reviewed By: labath

Subscribers: Hui, clayborg, dexonsmith, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D61687

llvm-svn: 368776
(cherry picked from commit 2a39024)
This patch adds braces to the DEFINE_XMM macro.

llvm-svn: 368782
(cherry picked from commit b6946a2)
The isGuardVariableSymbol option for ignoring Microsoft's ABI
was originally added to get the bots green, but now that we found
the actual issue (that we checked for prefix instead of suffix
in the MS ABI check), we should be able to properly implement
the guard variable check without any strange Microsoft exceptions.

llvm-svn: 368802
(cherry picked from commit afd493e)
…f nullptr

Summary:
It seems this was an unintended side-effect of D26698. AFAICT, these
functions did return an empty string before that patch, and the patch
contained code which attempted to ensure that, but those efforts were
negated by ConstString::AsCString, which by default returns a nullptr
even for empty strings.

This patch:
- fixes the GetOutput/Error methods to really return empty strings
- adds and explicit test for that
- removes a workaround in lldbtest.py, which was masking this problem
  from our other tests

Reviewers: jingham, clayborg

Subscribers: zturner, lldb-commits

Differential Revision: https://reviews.llvm.org/D65739

llvm-svn: 368806
(cherry picked from commit 72ef113)
Although there is nothing wrong with this patch, the test added here
uncovers a problem in other parts of the code which cause the test to
fail when running under asan. Reverting the patch until I can fix the
underlying issue(s).

This reverts commit r368416.

llvm-svn: 368838
(cherry picked from commit b8ee0dd)
llvm-svn: 368852
(cherry picked from commit 03eacbd)
llvm-svn: 368872
(cherry picked from commit 8664998)
It seems this breaks the following tests:
    lldb-Suite :: expression_command/call-function/TestCallUserDefinedFunction.py
    lldb-Suite :: expression_command/rdar42038760/TestScalarURem.py

Let's revert this patch and wait until we find an actual issue that could be
fixed by also doing the guard variable check on Windows.

llvm-svn: 368920
(cherry picked from commit 66214b5)
Summary:
Currently the heuristic used in ClangASTContext::CreateRecordType to identify an anonymous class is that there is that name is a nullptr or simply a null terminator. This heuristic is not accurate since it will also sweep up unnamed classes and lambdas. The improved heuristic relies on the requirement that an anonymous class must be contained within a class.

Differential Revision: https://reviews.llvm.org/D66175

llvm-svn: 368937
(cherry picked from commit 62abe49)
This fixes a few warnings emitted when compiling with -Wdocumentation.

llvm-svn: 368959
(cherry picked from commit a7d4cec)
I updated the signature to conform to the LLDB coding style but
accidentally forgot to update the function body.

llvm-svn: 368962
(cherry picked from commit 706cd70)
…ule build failures

Summary:
When building with modules we currently fail randomly to build LLDB's modules and get error messages like below:
```
In file included from <module-includes>:1:
In file included from llvm-project/llvm/include/llvm/IR/Argument.h:18:
llvm-project/llvm/include/llvm/IR/Attributes.h:74:14: fatal error: 'llvm/IR/Attributes.inc' file not found
    #include "llvm/IR/Attributes.inc"
             ^~~~~~~~~~~~~~~~~~~~~~~~
...
In file included from llvm-project/lldb/source/Plugins/ABI/SysV-arm/ABISysV_arm.cpp:9:
llvm-project/lldb/source/Plugins/ABI/SysV-arm/ABISysV_arm.h:12:10: fatal error: could not build module 'lldb_Wrapper'
```

The reason for this is that our source files can include Clang headers which in turn include files like Attributes.inc which
are generated by intrinsics_gen. However, it seems Clang can't express this dependency in its CMake code, so intrinsics_gen
is actually not guaranteed to be built before we start parsing LLDB source files and Clang headers. Clang worked around this
by letting all libraries depend on intrinsics_gen, which at least lets their builds pass.

As I haven't figured out how to solve these dependencies properly and I want to get the LLDB+Modules build green,
I suggest we copy Clang's hack until we figure out how to get Clang's dependencies right.

Reviewers: sgraenitz, aprantl, JDevlieghere

Reviewed By: JDevlieghere

Subscribers: mgorny, javed.absar, kristof.beyls, mgrang, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D66208

llvm-svn: 368975
(cherry picked from commit 5c5408c)
…ests

This patch moves the remaining completion functions from the
old completion API (that used several variables) to just
passing a single CompletionRequest.

This is for the most part a simple change as we just replace
the old arguments with a single CompletionRequest argument.

There are a few places where I had to create new CompletionRequests
in the called functions as CompletionRequests itself are immutable
and don't expose their internal match list anymore. This means that
if a function wanted to change the CompletionRequest or directly
access the result list, we need to work around this by creating
a new CompletionRequest and a temporary match/description list.

Preparation work for rdar://53769355

llvm-svn: 369000
(cherry picked from commit 2fc20f6)
…ures.

llvm-svn: 369034
(cherry picked from commit 69ec60d)
There was a little bit of logic in the StopInfoBreakpoint::PerformAction
that would null out the StopInfo once we had a completed plan so that the
next call to GetStopInfo would replace it with the StopInfoThreadPlan.

But the stop-hooks check for whether a thread stopped for a reason didn't
trigger this conversion.  So I added an API to do that directly, and then
called it where before we just reset the StopInfo.

<rdar://problem/54270767>

Differential Revision: https://reviews.llvm.org/D66241

llvm-svn: 369052
(cherry picked from commit 7049b0a)
In r368879 I made an attempt to guess the path style from the files in
the line table. After some consideration I now think this is a poor
idea. This patch undoes that behavior and instead adds an optional
argument to specify the path style. This allows us to make that decision
elsewhere where we have more information. In case of LLDB based on the
Unit.

llvm-svn: 369072
(cherry picked from commit de0ce98)
llvm-svn: 369113
(cherry picked from commit 4c78b78)
Originally I wanted to remove the RegularExpression class in Utility and
replace it with llvm::Regex. However, during that transition I noticed
that there are several places where need the regular expression string.
So instead I propose to keep the RegularExpression class and make it a
thin wrapper around llvm::Regex.

This patch also removes the workaround for empty regular expressions.
The result is that we are now (more or less) POSIX conformant.

Differential revision: https://reviews.llvm.org/D66174

llvm-svn: 369153
(cherry picked from commit 3af3f1e)
llvm-svn: 369179
(cherry picked from commit 69cef32)
…nalVariable

llvm-svn: 369198
(cherry picked from commit 37a928e)
fredriss and others added 10 commits October 28, 2019 16:50
The flakiness on our local machines seems to come for a race in the kernel
between task_suspend and the creation of the Mach exceptions for the threads
that hit breakpoints. The debugserver code is written with the assumption
that the kernel will be able to provide us with all the exceptions for a
given task once task_suspend returns. On machines with higher core counts,
this seems not to be the case. The first batch of exceptions we get after
task_suspend does not contain exceptions for all the threads that have hit
a breakpoint, thus they get misreprorted in the first stop packet.

Adding a 1ms timeout to the call that retrieves the batch of exceptions
seems to workaround the issue reliably on our machines, and it shoulnd't
impact standard debugging scenarios too much (a stop will incur an additional
1ms delay). We'll be talking to the kernel team to figure out the right
contract for those APIs.

This patch also reverts part of Jonas' previous workaround for the
issue (r370785).

llvm-svn: 370916
(cherry picked from commit cc5b509)
plugin.

Unfortunately the test is currently XFAILed because of missing changes
to the clang driver.

Differential Revision: https://reviews.llvm.org/D67124

llvm-svn: 370931
(cherry picked from commit 2461061)
llvm-svn: 370952
(cherry picked from commit 5559406)
Python 3 calls __bool__() instead of __len__() and lldb.value only
implemented the __len__ method. This adds the __bool__() implementation.

Differential revision: https://reviews.llvm.org/D67183

llvm-svn: 370953
(cherry picked from commit 24223eb)
Python 3 iteration calls the next() method instead of next() and
value_iter only implemented the Python 2 version.

Differential revision: https://reviews.llvm.org/D67184

llvm-svn: 370954
(cherry picked from commit 6eef8e0)
This reverts my change to pseudo_barrier.h which isn't necessary anymore
after Fred's fix to debugserver and caused TestThreadStepOut to fail.

llvm-svn: 370963
(cherry picked from commit 85d6edb)
This test was failing when you had things like `+` in your build path.

llvm-svn: 370983
(cherry picked from commit c40449f)
Use early returns to highlight preconditions and make the code easier to
follow.

llvm-svn: 370994
(cherry picked from commit 4be6706)
Use early returns to highlight preconditions and make the code easier to
follow.

llvm-svn: 370998
(cherry picked from commit 0910e17)
inline tests are able to generate these automatically

llvm-svn: 371015
(cherry picked from commit 59a1d99)
… system's one

Summary:
We can always build debugserver, but we can't always sign it to be useable for testing. `LLDB_USE_SYSTEM_DEBUGSERVER` should only tell whether or not the system debugserver should be used for testing.
The old behavior complicated the logic around debugserver a lot. The new logic sorts out most of it.

Please note that this patch is in early stage and needs some more testing. It should not affect platfroms other than Darwin. It builds on Davide's approach to validate the code-signing identity at configuration time.

What do you think?

Reviewers: xiaobai, JDevlieghere, davide, compnerd, friss, labath, mgorny, jasonmolenda

Reviewed By: JDevlieghere

Subscribers: lldb-commits, #lldb

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D64806

llvm-svn: 366433
(cherry picked from commit 0c49484)

 Conflicts:
	lldb/CMakeLists.txt
@adrian-prantl
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@swift-ci test

@JDevlieghere
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Thanks Adrian!

@JDevlieghere JDevlieghere merged commit d07eb80 into swiftlang:apple/stable/20190619 Oct 29, 2019
@adrian-prantl
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This wasn't quite ready for prime time yet — I'll make a new PR for the remaining fixes.

swift-ci pushed a commit that referenced this pull request Jul 30, 2021
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
adrian-prantl added a commit to adrian-prantl/llvm-project that referenced this pull request Jan 20, 2023
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]
adrian-prantl added a commit to adrian-prantl/llvm-project that referenced this pull request Jan 20, 2023
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)
adrian-prantl pushed a commit that referenced this pull request May 5, 2023
…callback

The `TypeSystemMap::m_mutex` guards against concurrent modifications
of members of `TypeSystemMap`. In particular, `m_map`.

`TypeSystemMap::ForEach` iterates through the entire `m_map` calling
a user-specified callback for each entry. This is all done while
`m_mutex` is locked. However, there's nothing that guarantees that
the callback itself won't call back into `TypeSystemMap` APIs on the
same thread. This lead to double-locking `m_mutex`, which is undefined
behaviour. We've seen this cause a deadlock in the swift plugin with
following backtrace:

```

int main() {
    std::unique_ptr<int> up = std::make_unique<int>(5);

    volatile int val = *up;
    return val;
}

clang++ -std=c++2a -g -O1 main.cpp

./bin/lldb -o “br se -p return” -o run -o “v *up” -o “expr *up” -b
```

```
frame #4: std::lock_guard<std::mutex>::lock_guard
frame #5: lldb_private::TypeSystemMap::GetTypeSystemForLanguage <<<< Lock #2
frame #6: lldb_private::TypeSystemMap::GetTypeSystemForLanguage
frame #7: lldb_private::Target::GetScratchTypeSystemForLanguage
...
frame #26: lldb_private::SwiftASTContext::LoadLibraryUsingPaths
frame #27: lldb_private::SwiftASTContext::LoadModule
frame #30: swift::ModuleDecl::collectLinkLibraries
frame #31: lldb_private::SwiftASTContext::LoadModule
frame #34: lldb_private::SwiftASTContext::GetCompileUnitImportsImpl
frame #35: lldb_private::SwiftASTContext::PerformCompileUnitImports
frame #36: lldb_private::TypeSystemSwiftTypeRefForExpressions::GetSwiftASTContext
frame #37: lldb_private::TypeSystemSwiftTypeRefForExpressions::GetPersistentExpressionState
frame #38: lldb_private::Target::GetPersistentSymbol
frame #41: lldb_private::TypeSystemMap::ForEach                 <<<< Lock #1
frame #42: lldb_private::Target::GetPersistentSymbol
frame #43: lldb_private::IRExecutionUnit::FindInUserDefinedSymbols
frame #44: lldb_private::IRExecutionUnit::FindSymbol
frame #45: lldb_private::IRExecutionUnit::MemoryManager::GetSymbolAddressAndPresence
frame #46: lldb_private::IRExecutionUnit::MemoryManager::findSymbol
frame #47: non-virtual thunk to lldb_private::IRExecutionUnit::MemoryManager::findSymbol
frame #48: llvm::LinkingSymbolResolver::findSymbol
frame #49: llvm::LegacyJITSymbolResolver::lookup
frame #50: llvm::RuntimeDyldImpl::resolveExternalSymbols
frame #51: llvm::RuntimeDyldImpl::resolveRelocations
frame #52: llvm::MCJIT::finalizeLoadedModules
frame #53: llvm::MCJIT::finalizeObject
frame #54: lldb_private::IRExecutionUnit::ReportAllocations
frame #55: lldb_private::IRExecutionUnit::GetRunnableInfo
frame #56: lldb_private::ClangExpressionParser::PrepareForExecution
frame #57: lldb_private::ClangUserExpression::TryParse
frame #58: lldb_private::ClangUserExpression::Parse
```

Our solution is to simply iterate over a local copy of `m_map`.

**Testing**

* Confirmed on manual reproducer (would reproduce 100% of the time
  before the patch)

Differential Revision: https://reviews.llvm.org/D149949

(cherry picked from commit dda3a6a)
swift-ci pushed a commit that referenced this pull request May 5, 2023
…callback

The `TypeSystemMap::m_mutex` guards against concurrent modifications
of members of `TypeSystemMap`. In particular, `m_map`.

`TypeSystemMap::ForEach` iterates through the entire `m_map` calling
a user-specified callback for each entry. This is all done while
`m_mutex` is locked. However, there's nothing that guarantees that
the callback itself won't call back into `TypeSystemMap` APIs on the
same thread. This lead to double-locking `m_mutex`, which is undefined
behaviour. We've seen this cause a deadlock in the swift plugin with
following backtrace:

```

int main() {
    std::unique_ptr<int> up = std::make_unique<int>(5);

    volatile int val = *up;
    return val;
}

clang++ -std=c++2a -g -O1 main.cpp

./bin/lldb -o “br se -p return” -o run -o “v *up” -o “expr *up” -b
```

```
frame #4: std::lock_guard<std::mutex>::lock_guard
frame #5: lldb_private::TypeSystemMap::GetTypeSystemForLanguage <<<< Lock #2
frame #6: lldb_private::TypeSystemMap::GetTypeSystemForLanguage
frame #7: lldb_private::Target::GetScratchTypeSystemForLanguage
...
frame #26: lldb_private::SwiftASTContext::LoadLibraryUsingPaths
frame #27: lldb_private::SwiftASTContext::LoadModule
frame #30: swift::ModuleDecl::collectLinkLibraries
frame #31: lldb_private::SwiftASTContext::LoadModule
frame #34: lldb_private::SwiftASTContext::GetCompileUnitImportsImpl
frame #35: lldb_private::SwiftASTContext::PerformCompileUnitImports
frame #36: lldb_private::TypeSystemSwiftTypeRefForExpressions::GetSwiftASTContext
frame #37: lldb_private::TypeSystemSwiftTypeRefForExpressions::GetPersistentExpressionState
frame #38: lldb_private::Target::GetPersistentSymbol
frame #41: lldb_private::TypeSystemMap::ForEach                 <<<< Lock #1
frame #42: lldb_private::Target::GetPersistentSymbol
frame #43: lldb_private::IRExecutionUnit::FindInUserDefinedSymbols
frame #44: lldb_private::IRExecutionUnit::FindSymbol
frame #45: lldb_private::IRExecutionUnit::MemoryManager::GetSymbolAddressAndPresence
frame #46: lldb_private::IRExecutionUnit::MemoryManager::findSymbol
frame #47: non-virtual thunk to lldb_private::IRExecutionUnit::MemoryManager::findSymbol
frame #48: llvm::LinkingSymbolResolver::findSymbol
frame #49: llvm::LegacyJITSymbolResolver::lookup
frame #50: llvm::RuntimeDyldImpl::resolveExternalSymbols
frame #51: llvm::RuntimeDyldImpl::resolveRelocations
frame #52: llvm::MCJIT::finalizeLoadedModules
frame #53: llvm::MCJIT::finalizeObject
frame #54: lldb_private::IRExecutionUnit::ReportAllocations
frame #55: lldb_private::IRExecutionUnit::GetRunnableInfo
frame #56: lldb_private::ClangExpressionParser::PrepareForExecution
frame #57: lldb_private::ClangUserExpression::TryParse
frame #58: lldb_private::ClangUserExpression::Parse
```

Our solution is to simply iterate over a local copy of `m_map`.

**Testing**

* Confirmed on manual reproducer (would reproduce 100% of the time
  before the patch)

Differential Revision: https://reviews.llvm.org/D149949
swift-ci pushed a commit that referenced this pull request Feb 21, 2024
…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)
swift-ci pushed a commit that referenced this pull request Jul 4, 2024
…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
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