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authorDaniel Dunbar <daniel@zuster.org>2009-07-19 06:58:07 +0000
committerDaniel Dunbar <daniel@zuster.org>2009-07-19 06:58:07 +0000
commitb6adc43f6ec4d2c1eef7b00d3f6460fe2d7be381 (patch)
treedaeb510d033b1056dea4926228383466d8dd8f12 /clang/lib/CodeGen/CodeGenFunction.cpp
parent567daf3ce8ee278893b4065cfb13feae8d2c82a4 (diff)
downloadbcm5719-llvm-b6adc43f6ec4d2c1eef7b00d3f6460fe2d7be381.tar.gz
bcm5719-llvm-b6adc43f6ec4d2c1eef7b00d3f6460fe2d7be381.zip
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? llvm-svn: 76361
Diffstat (limited to 'clang/lib/CodeGen/CodeGenFunction.cpp')
-rw-r--r--clang/lib/CodeGen/CodeGenFunction.cpp8
1 files changed, 4 insertions, 4 deletions
diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp
index a72f2ae7106..e41476e6503 100644
--- a/clang/lib/CodeGen/CodeGenFunction.cpp
+++ b/clang/lib/CodeGen/CodeGenFunction.cpp
@@ -450,19 +450,19 @@ void CodeGenFunction::EmitIndirectSwitches() {
}
}
-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];
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