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Do now overflow while calulating upper bound for zero sized array.

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llvm-svn: 79043
This commit is contained in:
Devang Patel
2009-08-14 20:57:45 +00:00
parent 026d201eca
commit d4bbb08946
1 changed files with 3 additions and 2 deletions
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5
clang/lib/CodeGen/CGDebugInfo.cpp
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@@ -722,8 +722,9 @@ llvm::DIType CGDebugInfo::CreateType(const ArrayType *Ty,
QualType EltTy(Ty, 0);
while ((Ty = dyn_cast<ArrayType>(EltTy))) {
uint64_t Upper = 0;
if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(Ty))
Upper = CAT->getSize().getZExtValue() - 1;
if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(Ty))
if (CAT->getSize().getZExtValue())
Upper = CAT->getSize().getZExtValue() - 1;
// FIXME: Verify this is right for VLAs.
Subscripts.push_back(DebugFactory.GetOrCreateSubrange(0, Upper));
EltTy = Ty->getElementType();