r371080 - [DebugInfo] Add debug location to stubs generated by CGDeclCXX and mark them as artificial
Alexandre Ganea via cfe-commits
cfe-commits at lists.llvm.org
Thu Sep 5 08:24:49 PDT 2019
Author: aganea
Date: Thu Sep 5 08:24:49 2019
New Revision: 371080
URL: http://llvm.org/viewvc/llvm-project?rev=371080&view=rev
Log:
[DebugInfo] Add debug location to stubs generated by CGDeclCXX and mark them as artificial
Differential Revision: https://reviews.llvm.org/D66328
Added:
cfe/trunk/test/CodeGenCXX/debug-info-atexit-stub.cpp
cfe/trunk/test/CodeGenCXX/debug-info-destroy-helper.cpp
Modified:
cfe/trunk/include/clang/AST/GlobalDecl.h
cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
cfe/trunk/lib/CodeGen/CGDeclCXX.cpp
cfe/trunk/test/CodeGenCXX/debug-info-global-ctor-dtor.cpp
cfe/trunk/test/CodeGenCXX/debug-info-line.cpp
Modified: cfe/trunk/include/clang/AST/GlobalDecl.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/GlobalDecl.h?rev=371080&r1=371079&r2=371080&view=diff
==============================================================================
--- cfe/trunk/include/clang/AST/GlobalDecl.h (original)
+++ cfe/trunk/include/clang/AST/GlobalDecl.h Thu Sep 5 08:24:49 2019
@@ -31,6 +31,7 @@ enum class DynamicInitKind : unsigned {
NoStub = 0,
Initializer,
AtExit,
+ GlobalArrayDestructor
};
/// GlobalDecl - represents a global declaration. This can either be a
Modified: cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.cpp?rev=371080&r1=371079&r2=371080&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGDebugInfo.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGDebugInfo.cpp Thu Sep 5 08:24:49 2019
@@ -1910,7 +1910,8 @@ StringRef CGDebugInfo::getDynamicInitial
llvm::Function *InitFn) {
// If we're not emitting codeview, use the mangled name. For Itanium, this is
// arbitrary.
- if (!CGM.getCodeGenOpts().EmitCodeView)
+ if (!CGM.getCodeGenOpts().EmitCodeView ||
+ StubKind == DynamicInitKind::GlobalArrayDestructor)
return InitFn->getName();
// Print the normal qualified name for the variable, then break off the last
@@ -1935,6 +1936,7 @@ StringRef CGDebugInfo::getDynamicInitial
switch (StubKind) {
case DynamicInitKind::NoStub:
+ case DynamicInitKind::GlobalArrayDestructor:
llvm_unreachable("not an initializer");
case DynamicInitKind::Initializer:
OS << "`dynamic initializer for '";
@@ -3569,7 +3571,8 @@ void CGDebugInfo::EmitFunctionStart(Glob
if (Name.startswith("\01"))
Name = Name.substr(1);
- if (!HasDecl || D->isImplicit() || D->hasAttr<ArtificialAttr>()) {
+ if (!HasDecl || D->isImplicit() || D->hasAttr<ArtificialAttr>() ||
+ (isa<VarDecl>(D) && GD.getDynamicInitKind() != DynamicInitKind::NoStub)) {
Flags |= llvm::DINode::FlagArtificial;
// Artificial functions should not silently reuse CurLoc.
CurLoc = SourceLocation();
Modified: cfe/trunk/lib/CodeGen/CGDeclCXX.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDeclCXX.cpp?rev=371080&r1=371079&r2=371080&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGDeclCXX.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGDeclCXX.cpp Thu Sep 5 08:24:49 2019
@@ -247,6 +247,8 @@ llvm::Function *CodeGenFunction::createA
CGF.StartFunction(GlobalDecl(&VD, DynamicInitKind::AtExit),
CGM.getContext().VoidTy, fn, FI, FunctionArgList());
+ // Emit an artificial location for this function.
+ auto AL = ApplyDebugLocation::CreateArtificial(CGF);
llvm::CallInst *call = CGF.Builder.CreateCall(dtor, addr);
@@ -642,8 +644,9 @@ void CodeGenFunction::GenerateCXXGlobalV
StartFunction(GlobalDecl(D, DynamicInitKind::Initializer),
getContext().VoidTy, Fn, getTypes().arrangeNullaryFunction(),
- FunctionArgList(), D->getLocation(),
- D->getInit()->getExprLoc());
+ FunctionArgList());
+ // Emit an artificial location for this function.
+ auto AL = ApplyDebugLocation::CreateArtificial(*this);
// Use guarded initialization if the global variable is weak. This
// occurs for, e.g., instantiated static data members and
@@ -768,7 +771,10 @@ llvm::Function *CodeGenFunction::generat
CurEHLocation = VD->getBeginLoc();
- StartFunction(VD, getContext().VoidTy, fn, FI, args);
+ StartFunction(GlobalDecl(VD, DynamicInitKind::GlobalArrayDestructor),
+ getContext().VoidTy, fn, FI, args);
+ // Emit an artificial location for this function.
+ auto AL = ApplyDebugLocation::CreateArtificial(*this);
emitDestroy(addr, type, destroyer, useEHCleanupForArray);
Added: cfe/trunk/test/CodeGenCXX/debug-info-atexit-stub.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-atexit-stub.cpp?rev=371080&view=auto
==============================================================================
--- cfe/trunk/test/CodeGenCXX/debug-info-atexit-stub.cpp (added)
+++ cfe/trunk/test/CodeGenCXX/debug-info-atexit-stub.cpp Thu Sep 5 08:24:49 2019
@@ -0,0 +1,20 @@
+// RUN: %clang_cc1 -emit-llvm %s -triple x86_64-windows-msvc -gcodeview -debug-info-kind=limited -o - | FileCheck %s
+
+struct a {
+ ~a();
+};
+template <typename b> struct c : a {
+ c(void (b::*)());
+};
+struct B {
+ virtual void e();
+};
+c<B> *d() { static c<B> f(&B::e); return &f; }
+
+// CHECK: define internal void @"??__Ff@?1??d@@YAPEAU?$c at UB@@@@XZ at YAXXZ"()
+// CHECK-SAME: !dbg ![[SUBPROGRAM:[0-9]+]] {
+// CHECK: call void @"??1?$c at UB@@@@QEAA at XZ"(%struct.c* @"?f@?1??d@@YAPEAU?$c at UB@@@@XZ at 4U2@A"), !dbg ![[LOCATION:[0-9]+]]
+// CHECK-NEXT: ret void, !dbg ![[LOCATION]]
+// CHECK: ![[SUBPROGRAM]] = distinct !DISubprogram(name: "`dynamic atexit destructor for 'f'"
+// CHECK-SAME: flags: DIFlagArtificial
+// CHECK: ![[LOCATION]] = !DILocation(line: 0, scope: ![[SUBPROGRAM]])
\ No newline at end of file
Added: cfe/trunk/test/CodeGenCXX/debug-info-destroy-helper.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-destroy-helper.cpp?rev=371080&view=auto
==============================================================================
--- cfe/trunk/test/CodeGenCXX/debug-info-destroy-helper.cpp (added)
+++ cfe/trunk/test/CodeGenCXX/debug-info-destroy-helper.cpp Thu Sep 5 08:24:49 2019
@@ -0,0 +1,24 @@
+// RUN: %clang_cc1 -emit-llvm %s -triple x86_64-windows-msvc -gcodeview -debug-info-kind=limited -o - | FileCheck %s
+
+struct b {
+ b(char *);
+ ~b();
+};
+struct a {
+ ~a();
+};
+struct {
+ b c;
+ const a &d;
+} e[]{nullptr, {}};
+
+// CHECK: define internal void @__cxx_global_array_dtor(i8* %0)
+// CHECK-SAME: !dbg ![[SUBPROGRAM:[0-9]+]] {
+// CHECK: arraydestroy.body
+// CHECK: %arraydestroy.elementPast =
+// CHECK-SAME: !dbg ![[LOCATION:[0-9]+]]
+// CHECK: call void @"??1<unnamed-type-e>@@QEAA at XZ"(%struct.anon* %arraydestroy.element)
+// CHECK-SAME: !dbg ![[LOCATION]]
+// CHECK: ![[SUBPROGRAM]] = distinct !DISubprogram(name: "__cxx_global_array_dtor"
+// CHECK-SAME: flags: DIFlagArtificial
+// CHECK: ![[LOCATION]] = !DILocation(line: 0,
Modified: cfe/trunk/test/CodeGenCXX/debug-info-global-ctor-dtor.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-global-ctor-dtor.cpp?rev=371080&r1=371079&r2=371080&view=diff
==============================================================================
--- cfe/trunk/test/CodeGenCXX/debug-info-global-ctor-dtor.cpp (original)
+++ cfe/trunk/test/CodeGenCXX/debug-info-global-ctor-dtor.cpp Thu Sep 5 08:24:49 2019
@@ -29,25 +29,26 @@ template <typename U>
A FooTpl<T>::sdm_tpl(sizeof(U) + sizeof(T));
template A FooTpl<int>::sdm_tpl<int>;
-// CHECK-NOKEXT: !DISubprogram(name: "__cxx_global_var_init",{{.*}} line: 15,{{.*}} DISPFlagLocalToUnit | DISPFlagDefinition
-// CHECK-NOKEXT: !DISubprogram(name: "__dtor_glob",{{.*}} line: 15,{{.*}} DISPFlagLocalToUnit | DISPFlagDefinition
-// CHECK-NOKEXT: !DISubprogram(name: "__cxx_global_var_init.1",{{.*}} line: 16,{{.*}} DISPFlagLocalToUnit | DISPFlagDefinition
-// CHECK-NOKEXT: !DISubprogram(name: "__cxx_global_array_dtor",{{.*}} line: 16,{{.*}} DISPFlagLocalToUnit | DISPFlagDefinition
-// CHECK-NOKEXT: !DISubprogram(name: "__dtor_array",{{.*}} line: 16,{{.*}} DISPFlagLocalToUnit | DISPFlagDefinition
-// CHECK-NOKEXT: !DISubprogram(name: "__dtor__ZZ3foovE4stat",{{.*}} line: 19,{{.*}} DISPFlagLocalToUnit | DISPFlagDefinition
+// CHECK-NOKEXT: !DISubprogram(name: "__cxx_global_var_init",{{.*}} flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition
+// CHECK-NOKEXT: !DISubprogram(name: "__dtor_glob",{{.*}} flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition
+// CHECK-NOKEXT: !DISubprogram(name: "__cxx_global_var_init.1",{{.*}} flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition
+// CHECK-NOKEXT: !DISubprogram(name: "__cxx_global_array_dtor",{{.*}} flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition
+// CHECK-NOKEXT: !DISubprogram(name: "__dtor_array",{{.*}} flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition
+// CHECK-NOKEXT: !DISubprogram(name: "__dtor__ZZ3foovE4stat",{{.*}} flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition
// CHECK-NOKEXT: !DISubprogram({{.*}} DISPFlagLocalToUnit | DISPFlagDefinition
// CHECK-KEXT: !DISubprogram({{.*}} DISPFlagLocalToUnit | DISPFlagDefinition
-// CHECK-MSVC: !DISubprogram(name: "`dynamic initializer for 'glob'",{{.*}} line: 15,{{.*}}: DISPFlagLocalToUnit | DISPFlagDefinition
-// CHECK-MSVC: !DISubprogram(name: "`dynamic atexit destructor for 'glob'",{{.*}} line: 15,{{.*}}: DISPFlagLocalToUnit | DISPFlagDefinition
-// CHECK-MSVC: !DISubprogram(name: "`dynamic initializer for 'array'",{{.*}} line: 16,{{.*}}: DISPFlagLocalToUnit | DISPFlagDefinition
-// CHECK-MSVC: !DISubprogram(name: "__cxx_global_array_dtor",{{.*}} line: 16,{{.*}}: DISPFlagLocalToUnit | DISPFlagDefinition
-// CHECK-MSVC: !DISubprogram(name: "`dynamic atexit destructor for 'array'",{{.*}} line: 16,{{.*}}: DISPFlagLocalToUnit | DISPFlagDefinition
-// CHECK-MSVC: !DISubprogram(name: "`dynamic atexit destructor for 'stat'",{{.*}} line: 19,{{.*}}: DISPFlagLocalToUnit | DISPFlagDefinition
+// CHECK-MSVC: !DISubprogram(name: "`dynamic initializer for 'glob'",{{.*}} flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition
+// CHECK-MSVC: !DISubprogram(name: "`dynamic atexit destructor for 'glob'",{{.*}} flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition
+// CHECK-MSVC: !DISubprogram(name: "`dynamic initializer for 'array'",{{.*}} flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition
+// CHECK-MSVC: !DISubprogram(name: "__cxx_global_array_dtor",{{.*}} flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition
+// CHECK-MSVC: !DISubprogram(name: "`dynamic atexit destructor for 'array'",{{.*}} flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition
+// CHECK-MSVC: !DISubprogram(name: "`dynamic atexit destructor for 'stat'",{{.*}} flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition
// MSVC does weird stuff when templates are involved, so we don't match exactly,
// but these names are reasonable.
// FIXME: These should not be marked DISPFlagLocalToUnit.
-// CHECK-MSVC: !DISubprogram(name: "FooTpl<int>::`dynamic initializer for 'sdm_tpl<int>'",{{.*}} line: 29,{{.*}}: DISPFlagLocalToUnit | DISPFlagDefinition
-// CHECK-MSVC: !DISubprogram(name: "FooTpl<int>::`dynamic atexit destructor for 'sdm_tpl<int>'",{{.*}} line: 29,{{.*}}: DISPFlagLocalToUnit | DISPFlagDefinition
+// CHECK-MSVC: !DISubprogram(name: "FooTpl<int>::`dynamic initializer for 'sdm_tpl<int>'",{{.*}} flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition
+// CHECK-MSVC: !DISubprogram(name: "FooTpl<int>::`dynamic atexit destructor for 'sdm_tpl<int>'",{{.*}} flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition
+// CHECK-MSVC: !DISubprogram(linkageName: "_GLOBAL__sub_I_debug_info_global_ctor_dtor.cpp",{{.*}} flags: DIFlagArtificial
\ No newline at end of file
Modified: cfe/trunk/test/CodeGenCXX/debug-info-line.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-line.cpp?rev=371080&r1=371079&r2=371080&view=diff
==============================================================================
--- cfe/trunk/test/CodeGenCXX/debug-info-line.cpp (original)
+++ cfe/trunk/test/CodeGenCXX/debug-info-line.cpp Thu Sep 5 08:24:49 2019
@@ -314,7 +314,7 @@ void f25() {
// CHECK: [[DBG_F9]] = !DILocation(line: 1000,
// CHECK: [[DBG_F10_STORE]] = !DILocation(line: 1100,
// CHECK: [[DBG_GLBL_CTOR_B]] = !DILocation(line: 1200,
-// CHECK: [[DBG_GLBL_DTOR_B]] = !DILocation(line: 1200,
+// CHECK: [[DBG_GLBL_DTOR_B]] = !DILocation(line: 0,
// CHECK: [[DBG_F11]] = !DILocation(line: 1300,
// CHECK: [[DBG_F12]] = !DILocation(line: 1400,
// CHECK: [[DBG_F13]] = !DILocation(line: 1500,
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