diff options
| author | Anders Carlsson <andersca@mac.com> | 2008-12-20 20:46:34 +0000 |
|---|---|---|
| committer | Anders Carlsson <andersca@mac.com> | 2008-12-20 20:46:34 +0000 |
| commit | 60d35413662ebdcd1d31e34a8a7c665eb6977f1e (patch) | |
| tree | 3611941b067ec799cddd5b4d12c2cdb370b795d2 /lib/CodeGen/CGDecl.cpp | |
| parent | f666b7780d04186521adcaedb0e15dfa4d5e6933 (diff) | |
Change EmitVLASize to take a QualType that must be a variably modified type.
Emit the size even if the declared type is a variably modified type. This lets us handle
void f(int n) {
int (*a)[n];
printf("size: %d\n", sizeof(*a));
}
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61285 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGDecl.cpp')
| -rw-r--r-- | lib/CodeGen/CGDecl.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/CodeGen/CGDecl.cpp b/lib/CodeGen/CGDecl.cpp index 7f4e34d0f9..e8084dcf17 100644 --- a/lib/CodeGen/CGDecl.cpp +++ b/lib/CodeGen/CGDecl.cpp @@ -160,9 +160,10 @@ void CodeGenFunction::EmitLocalBlockVarDecl(const VarDecl &D) { D.getStorageClass() == VarDecl::Register ? ".reg." : ".auto."; DeclPtr = GenerateStaticBlockVarDecl(D, true, Class); } + + if (Ty->isVariablyModifiedType()) + EmitVLASize(Ty); } else { - const VariableArrayType *VAT = getContext().getAsVariableArrayType(Ty); - if (!StackSaveValues.back()) { // Save the stack. const llvm::Type *LTy = llvm::PointerType::getUnqual(llvm::Type::Int8Ty); @@ -180,7 +181,7 @@ void CodeGenFunction::EmitLocalBlockVarDecl(const VarDecl &D) { const llvm::Type *LElemPtrTy = llvm::PointerType::get(LElemTy, D.getType().getAddressSpace()); - llvm::Value *VLASize = EmitVLASize(VAT); + llvm::Value *VLASize = EmitVLASize(Ty); // Allocate memory for the array. llvm::Value *VLA = Builder.CreateAlloca(llvm::Type::Int8Ty, VLASize, "vla"); |