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
diff --git a/lib/CodeGen/CGDecl.cpp b/lib/CodeGen/CGDecl.cpp
index 7f4e34d..e8084dc 100644
--- a/lib/CodeGen/CGDecl.cpp
+++ b/lib/CodeGen/CGDecl.cpp
@@ -160,9 +160,10 @@
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 @@
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");