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[CGDebugInfo] Set the size and align for reference types 

In r253186, I changed the DIBuilder API to now take size and align
for reference types as well. This was done in preparation for upcoming
changes to the Verifier that will validate that sizes match between
DI types and IR values that are declared as having those types.
This updates clang to actually pass the information through.

llvm-svn: 253190
This commit is contained in:
Keno Fischer 2015-11-16 09:04:13 +00:00
parent 83709b1c1e
commit 87842f3b4e
2 changed files with 8 additions and 7 deletions
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9
clang/lib/CodeGen/CGDebugInfo.cpp
View File

@ -712,10 +712,6 @@ llvm::DIType *CGDebugInfo::CreatePointerLikeType(llvm::dwarf::Tag Tag,
const Type *Ty,
QualType PointeeTy,
llvm::DIFile *Unit) {
if (Tag == llvm::dwarf::DW_TAG_reference_type ||
Tag == llvm::dwarf::DW_TAG_rvalue_reference_type)
return DBuilder.createReferenceType(Tag, getOrCreateType(PointeeTy, Unit));
// Bit size, align and offset of the type.
// Size is always the size of a pointer. We can't use getTypeSize here
// because that does not return the correct value for references.
@ -723,6 +719,11 @@ llvm::DIType *CGDebugInfo::CreatePointerLikeType(llvm::dwarf::Tag Tag,
uint64_t Size = CGM.getTarget().getPointerWidth(AS);
uint64_t Align = CGM.getContext().getTypeAlign(Ty);
if (Tag == llvm::dwarf::DW_TAG_reference_type ||
Tag == llvm::dwarf::DW_TAG_rvalue_reference_type)
return DBuilder.createReferenceType(Tag, getOrCreateType(PointeeTy, Unit),
Size, Align);
else
return DBuilder.createPointerType(getOrCreateType(PointeeTy, Unit), Size,
Align);
}

2
clang/test/CodeGenCXX/debug-info-rvalue-ref.cpp
View File

@ -8,5 +8,5 @@ void foo (int &&i)
printf("%d\n", i);
}
// CHECK: !DIDerivedType(tag: DW_TAG_rvalue_reference_type, baseType: ![[INT:[0-9]+]])
// CHECK: !DIDerivedType(tag: DW_TAG_rvalue_reference_type, baseType: ![[INT:[0-9]+]], size: 64, align: 64)
// CHECK: ![[INT]] = !DIBasicType(name: "int"