awpandey updated this revision to Diff 235998.
awpandey added a comment.
Herald added a subscriber: hiraditya.
@dblaikie Thanks a lot for the suggestions. I have made the changes such that
this will become consistent with your suggestions.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D70524/new/
https://reviews.llvm.org/D70524
Files:
clang/lib/CodeGen/CGDebugInfo.cpp
clang/lib/CodeGen/CGDebugInfo.h
clang/test/CodeGenCXX/debug-info-auto-return.cpp
llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
Index: llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
===================================================================
--- llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
+++ llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
@@ -1165,6 +1165,14 @@
DIE *DeclDie = nullptr;
StringRef DeclLinkageName;
if (auto *SPDecl = SP->getDeclaration()) {
+ DITypeRefArray DeclArgs, DefinitionArgs;
+ DeclArgs = SPDecl->getType()->getTypeArray();
+ DefinitionArgs = SP->getType()->getTypeArray();
+
+ if (DeclArgs.size() && DefinitionArgs.size())
+ if (DeclArgs[0] != DefinitionArgs[0])
+ addType(SPDie, DefinitionArgs[0]);
+
DeclDie = getDIE(SPDecl);
assert(DeclDie && "This DIE should've already been constructed when the "
"definition DIE was created in "
Index: clang/test/CodeGenCXX/debug-info-auto-return.cpp
===================================================================
--- /dev/null
+++ clang/test/CodeGenCXX/debug-info-auto-return.cpp
@@ -0,0 +1,22 @@
+// Test for debug info for C++11 auto return member functions
+// RUN: %clang_cc1 -dwarf-version=5 -emit-llvm -triple x86_64-linux-gnu %s -o - \
+// RUN: -O0 -disable-llvm-passes \
+// RUN: -debug-info-kind=standalone \
+// RUN: | FileCheck %s
+
+// CHECK: !DISubprogram(name: "findMax",{{.*}}, type: ![[t:[0-9]+]],{{.*}}
+
+// CHECK: ![[t:[0-9]+]] = !DISubroutineType(types: ![[t1:[0-9]+]])
+// CHECK-NEXT: ![[t1:[0-9]+]] = !{![[t2:[0-9]+]], {{.*}}
+// CHECK-NEXT: ![[t2:[0-9]+]] = !DIBasicType(name: "double", {{.*}})
+
+// CHECK: ![[t:[0-9]+]] = !DISubroutineType(types: ![[t1:[0-9]+]])
+// CHECK-NEXT: ![[t1:[0-9]+]] = !{![[t2:[0-9]+]], {{.*}}
+// CHECK-NEXT: ![[t2:[0-9]+]] = !DIBasicType(tag: DW_TAG_unspecified_type, name: "auto")
+struct myClass {
+ auto findMax();
+};
+
+auto myClass::findMax() {
+ return 0.0;
+}
Index: clang/lib/CodeGen/CGDebugInfo.h
===================================================================
--- clang/lib/CodeGen/CGDebugInfo.h
+++ clang/lib/CodeGen/CGDebugInfo.h
@@ -165,6 +165,7 @@
/// ivars and property accessors.
llvm::DIType *CreateType(const BuiltinType *Ty);
llvm::DIType *CreateType(const ComplexType *Ty);
+ llvm::DIType *CreateType(const AutoType *Ty);
llvm::DIType *CreateQualifiedType(QualType Ty, llvm::DIFile *Fg);
llvm::DIType *CreateType(const TypedefType *Ty, llvm::DIFile *Fg);
llvm::DIType *CreateType(const TemplateSpecializationType *Ty,
@@ -214,10 +215,10 @@
/// not updated to include implicit \c this pointer. Use this routine
/// to get a method type which includes \c this pointer.
llvm::DISubroutineType *getOrCreateMethodType(const CXXMethodDecl *Method,
- llvm::DIFile *F);
+ llvm::DIFile *F, bool decl);
llvm::DISubroutineType *
getOrCreateInstanceMethodType(QualType ThisPtr, const FunctionProtoType *Func,
- llvm::DIFile *Unit);
+ llvm::DIFile *Unit, bool decl);
llvm::DISubroutineType *
getOrCreateFunctionType(const Decl *D, QualType FnType, llvm::DIFile *F);
/// \return debug info descriptor for vtable.
Index: clang/lib/CodeGen/CGDebugInfo.cpp
===================================================================
--- clang/lib/CodeGen/CGDebugInfo.cpp
+++ clang/lib/CodeGen/CGDebugInfo.cpp
@@ -810,6 +810,10 @@
return DBuilder.createBasicType(BTName, Size, Encoding);
}
+llvm::DIType *CGDebugInfo::CreateType(const AutoType *Ty) {
+ return DBuilder.createUnspecifiedType("auto");
+}
+
llvm::DIType *CGDebugInfo::CreateType(const ComplexType *Ty) {
// Bit size and offset of the type.
llvm::dwarf::TypeKind Encoding = llvm::dwarf::DW_ATE_complex_float;
@@ -1457,16 +1461,18 @@
llvm::DISubroutineType *
CGDebugInfo::getOrCreateMethodType(const CXXMethodDecl *Method,
- llvm::DIFile *Unit) {
+ llvm::DIFile *Unit, bool decl) {
const FunctionProtoType *Func = Method->getType()->getAs<FunctionProtoType>();
if (Method->isStatic())
return cast_or_null<llvm::DISubroutineType>(
getOrCreateType(QualType(Func, 0), Unit));
- return getOrCreateInstanceMethodType(Method->getThisType(), Func, Unit);
+ return getOrCreateInstanceMethodType(Method->getThisType(), Func, Unit, decl);
}
-llvm::DISubroutineType *CGDebugInfo::getOrCreateInstanceMethodType(
- QualType ThisPtr, const FunctionProtoType *Func, llvm::DIFile *Unit) {
+llvm::DISubroutineType *
+CGDebugInfo::getOrCreateInstanceMethodType(QualType ThisPtr,
+ const FunctionProtoType *Func,
+ llvm::DIFile *Unit, bool decl) {
// Add "this" pointer.
llvm::DITypeRefArray Args(
cast<llvm::DISubroutineType>(getOrCreateType(QualType(Func, 0), Unit))
@@ -1474,9 +1480,12 @@
assert(Args.size() && "Invalid number of arguments!");
SmallVector<llvm::Metadata *, 16> Elts;
-
// First element is always return type. For 'void' functions it is NULL.
- Elts.push_back(Args[0]);
+ QualType temp = Func->getReturnType();
+ if (temp->getTypeClass() == Type::Auto && decl)
+ Elts.push_back(CreateType(cast<AutoType>(temp)));
+ else
+ Elts.push_back(Args[0]);
// "this" pointer is always first argument.
const CXXRecordDecl *RD = ThisPtr->getPointeeCXXRecordDecl();
@@ -1535,7 +1544,7 @@
isa<CXXConstructorDecl>(Method) || isa<CXXDestructorDecl>(Method);
StringRef MethodName = getFunctionName(Method);
- llvm::DISubroutineType *MethodTy = getOrCreateMethodType(Method, Unit);
+ llvm::DISubroutineType *MethodTy = getOrCreateMethodType(Method, Unit, true);
// Since a single ctor/dtor corresponds to multiple functions, it doesn't
// make sense to give a single ctor/dtor a linkage name.
@@ -2754,7 +2763,7 @@
return DBuilder.createMemberPointerType(
getOrCreateInstanceMethodType(
CXXMethodDecl::getThisType(FPT, Ty->getMostRecentCXXRecordDecl()),
- FPT, U),
+ FPT, U, false),
ClassType, Size, /*Align=*/0, Flags);
}
@@ -3529,7 +3538,7 @@
return DBuilder.createSubroutineType(DBuilder.getOrCreateTypeArray(None));
if (const auto *Method = dyn_cast<CXXMethodDecl>(D))
- return getOrCreateMethodType(Method, F);
+ return getOrCreateMethodType(Method, F, false);
const auto *FTy = FnType->getAs<FunctionType>();
CallingConv CC = FTy ? FTy->getCallConv() : CallingConv::CC_C;
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