AMDGPU: Don't optimize exec masks at -O0

llvm-svn: 347573

diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp b/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
index cdd3017..2198ba8 100644 (file)
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
@@ -880,7 +880,8 @@ void GCNPassConfig::addOptimizedRegAlloc(FunctionPass *RegAllocPass) {
 
 void GCNPassConfig::addPostRegAlloc() {
   addPass(&SIFixVGPRCopiesID);
-  addPass(&SIOptimizeExecMaskingID);
+  if (getOptLevel() > CodeGenOpt::None)
+    addPass(&SIOptimizeExecMaskingID);
   TargetPassConfig::addPostRegAlloc();
 }