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[DebugInfo] Add types from constructor homing to the retained types list. 

Add class types to the retained types list to make sure they
don't get dropped if the constructor is optimized out later.

Differential Revision: https://reviews.llvm.org/D88522
This commit is contained in:
Amy Huang 2020-09-29 16:19:08 -07:00
parent 984744a131
commit 5c4fc581d5
2 changed files with 6 additions and 2 deletions
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2
clang/lib/CodeGen/CGDebugInfo.cpp
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@ -1726,7 +1726,7 @@ llvm::DISubprogram *CGDebugInfo::CreateCXXMemberFunction(
// info is emitted.
if (DebugKind == codegenoptions::DebugInfoConstructor)
if (const CXXConstructorDecl *CD = dyn_cast<CXXConstructorDecl>(Method))
completeClass(CD->getParent());
completeUnusedClass(*CD->getParent());
llvm::DINodeArray TParamsArray = CollectFunctionTemplateParams(Method, Unit);
llvm::DISubprogram *SP = DBuilder.createMethod(

6
clang/test/CodeGenCXX/debug-info-limited-ctor.cpp
View File

@ -9,7 +9,7 @@ struct B {
B();
} TestB;
// CHECK-DAG: !DICompositeType(tag: DW_TAG_structure_type, name: "C"{{.*}}DIFlagTypePassByValue
// CHECK-DAG: ![[C:[0-9]+]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "C"{{.*}}DIFlagTypePassByValue
struct C {
C() {}
} TestC;
@ -73,3 +73,7 @@ void f(K k) {}
void L() {
auto func = [&]() {};
}
// Check that types are being added to retained types list.
// CHECK-DAG: !DICompileUnit{{.*}}retainedTypes: ![[RETAINED:[0-9]+]]
// CHECK-DAG: ![[RETAINED]] = {{.*}}![[C]]