Avoid generation of dead code in a few more situations.
- Emit variable declarations as "simple", we want to avoid forcing the creation
of a dummy basic block, but still need to make the variable available for
later use.
- With that, we can now skip IRgen for other unreachable statements (which
don't define a label).
- Anders, I added two fixmes on calls to EmitVLASize, can you check them?
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76361 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenFunction.cpp b/lib/CodeGen/CodeGenFunction.cpp
index a72f2ae..e41476e 100644
--- a/lib/CodeGen/CodeGenFunction.cpp
+++ b/lib/CodeGen/CodeGenFunction.cpp
@@ -450,19 +450,19 @@
}
}
-llvm::Value *CodeGenFunction::GetVLASize(const VariableArrayType *VAT)
-{
+llvm::Value *CodeGenFunction::GetVLASize(const VariableArrayType *VAT) {
llvm::Value *&SizeEntry = VLASizeMap[VAT];
assert(SizeEntry && "Did not emit size for type");
return SizeEntry;
}
-llvm::Value *CodeGenFunction::EmitVLASize(QualType Ty)
-{
+llvm::Value *CodeGenFunction::EmitVLASize(QualType Ty) {
assert(Ty->isVariablyModifiedType() &&
"Must pass variably modified type to EmitVLASizes!");
+ EnsureInsertPoint();
+
if (const VariableArrayType *VAT = getContext().getAsVariableArrayType(Ty)) {
llvm::Value *&SizeEntry = VLASizeMap[VAT];