Merged main:675231eb09ca into amd-gfx:a6e32de5b204

Local branch amd-gfx a6e32de Merged main:7cd7b9533c77 into amd-gfx:78fd3d96689b
Remote branch main 675231e [SVE ACLE] Allow default zero initialisation for svcount_t. (llvm#69321)

Author: SC llvm team

clang/lib/Index/USRGeneration.cpp

@@ -9,6 +9,7 @@
 #include "clang/Index/USRGeneration.h"
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/Attr.h"
+#include "clang/AST/DeclCXX.h"
 #include "clang/AST/DeclTemplate.h"
 #include "clang/AST/DeclVisitor.h"
 #include "clang/Basic/FileManager.h"
@@ -368,14 +369,14 @@ void USRGenerator::VisitTemplateTemplateParmDecl(
 }
 
 void USRGenerator::VisitNamespaceDecl(const NamespaceDecl *D) {
+  if (IgnoreResults)
+    return;
+  VisitDeclContext(D->getDeclContext());
   if (D->isAnonymousNamespace()) {
     Out << "@aN";
     return;
   }
-
-  VisitDeclContext(D->getDeclContext());
-  if (!IgnoreResults)
-    Out << "@N@" << D->getName();
+  Out << "@N@" << D->getName();
 }
 
 void USRGenerator::VisitFunctionTemplateDecl(const FunctionTemplateDecl *D) {

clang/test/CodeGenCXX/aarch64-sve-vector-init.cpp

@@ -55,6 +55,7 @@
 // CHECK-NEXT:    [[B8:%.*]] = alloca <vscale x 16 x i1>, align 2
 // CHECK-NEXT:    [[B8X2:%.*]] = alloca <vscale x 32 x i1>, align 2
 // CHECK-NEXT:    [[B8X4:%.*]] = alloca <vscale x 64 x i1>, align 2
+// CHECK-NEXT:    [[CNT:%.*]] = alloca target("aarch64.svcount"), align 2
 // CHECK-NEXT:    store <vscale x 16 x i8> zeroinitializer, ptr [[S8]], align 16
 // CHECK-NEXT:    store <vscale x 8 x i16> zeroinitializer, ptr [[S16]], align 16
 // CHECK-NEXT:    store <vscale x 4 x i32> zeroinitializer, ptr [[S32]], align 16
@@ -106,6 +107,7 @@
 // CHECK-NEXT:    store <vscale x 16 x i1> zeroinitializer, ptr [[B8]], align 2
 // CHECK-NEXT:    store <vscale x 32 x i1> zeroinitializer, ptr [[B8X2]], align 2
 // CHECK-NEXT:    store <vscale x 64 x i1> zeroinitializer, ptr [[B8X4]], align 2
+// CHECK-NEXT:    store target("aarch64.svcount") zeroinitializer, ptr [[CNT]], align 2
 // CHECK-NEXT:    ret void
 //
 void test_locals(void) {
@@ -164,6 +166,8 @@ void test_locals(void) {
   __SVBool_t b8{};
   __clang_svboolx2_t b8x2{};
   __clang_svboolx4_t b8x4{};
+
+  __SVCount_t cnt{};
 }
 
 // CHECK-LABEL: define dso_local void @_Z12test_copy_s8u10__SVInt8_t
@@ -879,3 +883,17 @@ void test_copy_b8x2(__clang_svboolx2_t a) {
 void test_copy_b8x4(__clang_svboolx4_t a) {
   __clang_svboolx4_t b{a};
 }
+
+// CHECK-LABEL: define dso_local void @_Z13test_copy_cntu11__SVCount_t
+// CHECK-SAME: (target("aarch64.svcount") [[A:%.*]]) #[[ATTR0]] {
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[A_ADDR:%.*]] = alloca target("aarch64.svcount"), align 2
+// CHECK-NEXT:    [[B:%.*]] = alloca target("aarch64.svcount"), align 2
+// CHECK-NEXT:    store target("aarch64.svcount") [[A]], ptr [[A_ADDR]], align 2
+// CHECK-NEXT:    [[TMP0:%.*]] = load target("aarch64.svcount"), ptr [[A_ADDR]], align 2
+// CHECK-NEXT:    store target("aarch64.svcount") [[TMP0]], ptr [[B]], align 2
+// CHECK-NEXT:    ret void
+//
+void test_copy_cnt(__SVCount_t a) {
+  __SVCount_t b{a};
+}

clang/test/Index/USR/decl-context.cpp

@@ -0,0 +1,14 @@
+// RUN: c-index-test core -print-source-symbols -- -std=c++20 %s | FileCheck %s
+
+namespace ns {
+namespace {
+struct Foo {};
+// CHECK: [[@LINE-1]]:8 | struct/C | Foo | c:decl-context.cpp@N@ns@aN@S@Foo
+}
+}
+namespace ns2 {
+namespace {
+struct Foo {};
+// CHECK: [[@LINE-1]]:8 | struct/C | Foo | c:decl-context.cpp@N@ns2@aN@S@Foo
+}
+}

clang/unittests/Driver/CMakeLists.txt

@@ -9,6 +9,7 @@ set(LLVM_LINK_COMPONENTS
 add_clang_unittest(ClangDriverTests
   DistroTest.cpp
   DXCModeTest.cpp
+  GCCVersionTest.cpp
   ToolChainTest.cpp
   ModuleCacheTest.cpp
   MultilibBuilderTest.cpp

clang/unittests/Driver/GCCVersionTest.cpp

@@ -0,0 +1,52 @@
+//===- unittests/Driver/GCCVersionTest.cpp --- GCCVersion parser tests ----===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// Unit tests for Generic_GCC::GCCVersion
+//
+//===----------------------------------------------------------------------===//
+
+#include "../../lib/Driver/ToolChains/Gnu.h"
+#include "gtest/gtest.h"
+
+using namespace clang;
+using namespace clang::driver;
+
+namespace {
+
+struct VersionParseTest {
+  std::string Text;
+
+  int Major, Minor, Patch;
+  std::string MajorStr, MinorStr, PatchSuffix;
+};
+
+const VersionParseTest TestCases[] = {
+    {"5", 5, -1, -1, "5", "", ""},
+    {"4.4", 4, 4, -1, "4", "4", ""},
+    {"4.4-patched", 4, 4, -1, "4", "4", "-patched"},
+    {"4.4.0", 4, 4, 0, "4", "4", ""},
+    {"4.4.x", 4, 4, -1, "4", "4", ""},
+    {"4.4.2-rc4", 4, 4, 2, "4", "4", "-rc4"},
+    {"4.4.x-patched", 4, 4, -1, "4", "4", ""},
+    {"not-a-version", -1, -1, -1, "", "", ""},
+};
+
+TEST(GCCVersionTest, Parse) {
+  for (const auto &TC : TestCases) {
+    auto V = toolchains::Generic_GCC::GCCVersion::Parse(TC.Text);
+    EXPECT_EQ(V.Text, TC.Text);
+    EXPECT_EQ(V.Major, TC.Major);
+    EXPECT_EQ(V.Minor, TC.Minor);
+    EXPECT_EQ(V.Patch, TC.Patch);
+    EXPECT_EQ(V.MajorStr, TC.MajorStr);
+    EXPECT_EQ(V.MinorStr, TC.MinorStr);
+    EXPECT_EQ(V.PatchSuffix, TC.PatchSuffix);
+  }
+}
+
+} // end anonymous namespace

compiler-rt/lib/builtins/CMakeLists.txt

@@ -555,8 +555,9 @@ set(aarch64_SOURCES
   aarch64/fp_mode.c
 )
 
-if(COMPILER_RT_HAS_ASM_SME)
+if(COMPILER_RT_HAS_ASM_SME AND (COMPILER_RT_HAS_AUXV OR COMPILER_RT_BAREMETAL_BUILD))
   list(APPEND aarch64_SOURCES aarch64/sme-abi.S aarch64/sme-abi-init.c)
+  message(STATUS "AArch64 SME ABI routines enabled")
 else()
   message(STATUS "AArch64 SME ABI routines disabled")
 endif()

llvm/include/llvm/Config/llvm-config.h.cmake

@@ -16,7 +16,7 @@
 
 /* Indicate that this is LLVM compiled from the amd-gfx branch. */
 #define LLVM_HAVE_BRANCH_AMD_GFX
-#define LLVM_MAIN_REVISION 477846
+#define LLVM_MAIN_REVISION 477852
 
 /* Define if LLVM_ENABLE_DUMP is enabled */
 #cmakedefine LLVM_ENABLE_DUMP

llvm/include/llvm/Object/XCOFFObjectFile.h

@@ -783,6 +783,7 @@ class XCOFFSymbolRef : public SymbolRef {
   const XCOFFSymbolEntry32 *getSymbol32() const {
     return reinterpret_cast<const XCOFFSymbolEntry32 *>(getRawDataRefImpl().p);
   }
+
   const XCOFFSymbolEntry64 *getSymbol64() const {
     return reinterpret_cast<const XCOFFSymbolEntry64 *>(getRawDataRefImpl().p);
   }

llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

@@ -1738,6 +1738,12 @@ SDValue SelectionDAGBuilder::getValueImpl(const Value *V) {
     if (const auto *NC = dyn_cast<NoCFIValue>(C))
       return getValue(NC->getGlobalValue());
 
+    if (VT == MVT::aarch64svcount) {
+      assert(C->isNullValue() && "Can only zero this target type!");
+      return DAG.getNode(ISD::BITCAST, getCurSDLoc(), VT,
+                         DAG.getConstant(0, getCurSDLoc(), MVT::nxv16i1));
+    }
+
     VectorType *VecTy = cast<VectorType>(V->getType());
 
     // Now that we know the number and type of the elements, get that number of

llvm/lib/IR/Type.cpp

@@ -841,7 +841,8 @@ static TargetTypeInfo getTargetTypeInfo(const TargetExtType *Ty) {
 
   // Opaque types in the AArch64 name space.
   if (Name == "aarch64.svcount")
-    return TargetTypeInfo(ScalableVectorType::get(Type::getInt1Ty(C), 16));
+    return TargetTypeInfo(ScalableVectorType::get(Type::getInt1Ty(C), 16),
+                          TargetExtType::HasZeroInit);
 
   return TargetTypeInfo(Type::getVoidTy(C));
 }