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Update API usage for llvm DIBuilder changes for rvalue reference 

types and ensure we are actually creating the type.

rdar://11479676

llvm-svn: 157095
This commit is contained in:
Eric Christopher 2012-05-19 01:36:50 +00:00
parent b5cf66cda2
commit fe0913b026
2 changed files with 17 additions and 4 deletions
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10
clang/lib/CodeGen/CGDebugInfo.cpp
View File

@ -576,8 +576,10 @@ llvm::DIType CGDebugInfo::CreatePointerLikeType(unsigned Tag,
const Type *Ty,
QualType PointeeTy,
llvm::DIFile Unit) {
if (Tag == llvm::dwarf::DW_TAG_reference_type)
return DBuilder.createReferenceType(CreatePointeeType(PointeeTy, Unit));
if (Tag == llvm::dwarf::DW_TAG_reference_type ||
Tag == llvm::dwarf::DW_TAG_rvalue_reference_type)
return DBuilder.createReferenceType(Tag,
CreatePointeeType(PointeeTy, Unit));
// Bit size, align and offset of the type.
// Size is always the size of a pointer. We can't use getTypeSize here
@ -2239,14 +2241,14 @@ void CGDebugInfo::EmitDeclare(const VarDecl *VD, unsigned Tag,
// If Storage is an aggregate returned as 'sret' then let debugger know
// about this.
if (Arg->hasStructRetAttr())
Ty = DBuilder.createReferenceType(Ty);
Ty = DBuilder.createReferenceType(llvm::dwarf::DW_TAG_reference_type, Ty);
else if (CXXRecordDecl *Record = VD->getType()->getAsCXXRecordDecl()) {
// If an aggregate variable has non trivial destructor or non trivial copy
// constructor than it is pass indirectly. Let debug info know about this
// by using reference of the aggregate type as a argument type.
if (!Record->hasTrivialCopyConstructor() ||
!Record->hasTrivialDestructor())
Ty = DBuilder.createReferenceType(Ty);
Ty = DBuilder.createReferenceType(llvm::dwarf::DW_TAG_reference_type, Ty);
}
}

11
clang/test/CodeGenCXX/debug-info-rvalue-ref.cpp Normal file
View File

@ -0,0 +1,11 @@
// RUN: %clang_cc1 -std=c++11 -emit-llvm -g -triple x86_64-apple-darwin %s -o - | FileCheck %s
extern "C" {
extern int printf(const char * format, ...);
}
void foo (int &&i)
{
printf("%d\n", i);
}
// CHECK: metadata !{i32 {{.*}}, null, null, null, i32 0, i64 0, i64 0, i64 0, i32 0, metadata !10} ; [ DW_TAG_rvalue_reference_type ]