diff options
Diffstat (limited to 'llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp b/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp index 32e9d8a9d19..df70b749d07 100644 --- a/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp +++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp @@ -30,6 +30,7 @@ #include "llvm/IR/Verifier.h" #include "llvm/MC/MCAsmInfo.h" #include "llvm/IR/LegacyPassManager.h" +#include "llvm/Support/CommandLine.h" #include "llvm/Support/TargetRegistry.h" #include "llvm/Support/raw_os_ostream.h" #include "llvm/Transforms/IPO.h" @@ -54,6 +55,7 @@ extern "C" void LLVMInitializeAMDGPUTarget() { initializeAMDGPUAnnotateUniformValuesPass(*PR); initializeAMDGPUPromoteAllocaPass(*PR); initializeSIAnnotateControlFlowPass(*PR); + initializeSIInsertNopsPass(*PR); initializeSIInsertWaitsPass(*PR); initializeSILowerControlFlowPass(*PR); } @@ -145,6 +147,12 @@ GCNTargetMachine::GCNTargetMachine(const Target &T, const Triple &TT, //===----------------------------------------------------------------------===// namespace { + +cl::opt<bool> InsertNops( + "amdgpu-insert-nops", + cl::desc("Insert two nop instructions for each high level source statement"), + cl::init(false)); + class AMDGPUPassConfig : public TargetPassConfig { public: AMDGPUPassConfig(TargetMachine *TM, PassManagerBase &PM) @@ -364,6 +372,9 @@ void GCNPassConfig::addPreSched2() { void GCNPassConfig::addPreEmitPass() { addPass(createSIInsertWaitsPass(), false); addPass(createSILowerControlFlowPass(), false); + if (InsertNops) { + addPass(createSIInsertNopsPass(), false); + } } TargetPassConfig *GCNTargetMachine::createPassConfig(PassManagerBase &PM) { |
