diff options
Diffstat (limited to 'llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp')
| -rw-r--r-- | llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp b/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp index 22beaad..f305e85 100644 --- a/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp +++ b/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp @@ -16,6 +16,7 @@ using namespace llvm; +extern cl::opt<bool> MISchedPostRA; extern "C" void LLVMInitializeSystemZTarget() { // Register the target. RegisterTargetMachine<SystemZTargetMachine> X(TheSystemZTarget); @@ -163,6 +164,16 @@ void SystemZPassConfig::addPreEmitPass() { if (getOptLevel() != CodeGenOpt::None) addPass(createSystemZElimComparePass(getSystemZTargetMachine()), false); addPass(createSystemZLongBranchPass(getSystemZTargetMachine())); + + // Do final scheduling after all other optimizations, to get an + // optimal input for the decoder (branch relaxation must happen + // after block placement). + if (getOptLevel() != CodeGenOpt::None) { + if (MISchedPostRA) + addPass(&PostMachineSchedulerID); + else + addPass(&PostRASchedulerID); + } } TargetPassConfig *SystemZTargetMachine::createPassConfig(PassManagerBase &PM) { |