================
@@ -207,28 +636,83 @@ static bool processCallBrInst(Function &F, CallBrInst
*CBR, DominatorTree *DT) {
return Changed;
}
-static SmallVector<CallBrInst *, 2> findCallBrs(Function &F) {
- SmallVector<CallBrInst *, 2> CBRs;
- for (BasicBlock &BB : F)
- if (auto *CBR = dyn_cast<CallBrInst>(BB.getTerminator()))
- if (!CBR->getType()->isVoidTy() && !CBR->use_empty())
- CBRs.push_back(CBR);
- return CBRs;
-}
-
-static bool runImpl(Function &F, ArrayRef<CallBrInst *> CBRs,
- DominatorTree *DT) {
+static bool runImpl(Function &F, ArrayRef<CallBase *> IAs, DominatorTree *DT,
+ const TargetMachine *TM) {
bool Changed = false;
+ bool isOptLevelNone = TM->getOptLevel() == CodeGenOptLevel::None;
----------------
bwendling wrote:
I added this to the front-end and skipped the processing in this module and it
generated good code. I think I'm going to get very very drunk. 😆
```
diff --git a/clang/lib/CodeGen/CGStmt.cpp b/clang/lib/CodeGen/CGStmt.cpp
index 55669c806bc6..4dffe606c445 100644
--- a/clang/lib/CodeGen/CGStmt.cpp
+++ b/clang/lib/CodeGen/CGStmt.cpp
@@ -2892,9 +2892,11 @@ void CodeGenFunction::EmitAsmStmt(const AsmStmt &S) {
// and 'm', such as "g" (which expands to "imr").
const bool RegisterMemoryConstraints =
OutputConstraint == "rm" || OutputConstraint == "mr";
+ bool OptLevelNone = CGM.getCodeGenOpts().OptimizationLevel == 0;
if (IsScalarOrAggregate &&
- (!Info.allowsMemory() || RegisterMemoryConstraints)) {
+ (!Info.allowsMemory() ||
+ (!OptLevelNone && RegisterMemoryConstraints))) {
Constraints += "=" + OutputConstraint;
ResultRegQualTys.push_back(QTy);
ResultRegDests.push_back(Dest);
```
https://github.com/llvm/llvm-project/pull/181973
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