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PR19623: Support typedefs (and alias templates) of void. 

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@207781 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie 2014-05-01 18:25:19 +00:00
parent b9351d0cbc
commit 387e171138
2 changed files with 8 additions and 3 deletions
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3
lib/CodeGen/CGDebugInfo.cpp
View File

@ -722,7 +722,6 @@ llvm::DIType CGDebugInfo::CreateType(const BlockPointerType *Ty,
llvm::DIType CGDebugInfo::CreateType(const TemplateSpecializationType *Ty, llvm::DIFile Unit) {
assert(Ty->isTypeAlias());
llvm::DIType Src = getOrCreateType(Ty->getAliasedType(), Unit);
assert(Src);
SmallString<128> NS;
llvm::raw_svector_ostream OS(NS);
@ -749,8 +748,6 @@ llvm::DIType CGDebugInfo::CreateType(const TypedefType *Ty, llvm::DIFile Unit) {
// Typedefs are derived from some other type. If we have a typedef of a
// typedef, make sure to emit the whole chain.
llvm::DIType Src = getOrCreateType(Ty->getDecl()->getUnderlyingType(), Unit);
if (!Src)
return llvm::DIType();
// We don't set size information, but do specify where the typedef was
// declared.
SourceLocation Loc = Ty->getDecl()->getLocation();

8
test/CodeGenCXX/debug-info-alias.cpp
View File

@ -27,3 +27,11 @@ narf // CHECK: [[NARF]] = {{.*}} ; [ DW_TAG_typedef ] [narf] [line 142
= int;
narf n;
template <typename T>
using tv = void;
// CHECK: null} ; [ DW_TAG_typedef ] [tv<int>] {{.*}} [from ]
tv<int> *tvp;
using v = void;
// CHECK: null} ; [ DW_TAG_typedef ] [v] {{.*}} [from ]
v *vp;