diff options
| -rw-r--r-- | llvm/lib/CodeGen/LLVMTargetMachine.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/LLVMTargetMachine.cpp b/llvm/lib/CodeGen/LLVMTargetMachine.cpp index a04f3ed3de0d..3a9f0f013b12 100644 --- a/llvm/lib/CodeGen/LLVMTargetMachine.cpp +++ b/llvm/lib/CodeGen/LLVMTargetMachine.cpp @@ -72,6 +72,8 @@ static cl::opt<bool> DisableLSR("disable-lsr", cl::Hidden, cl::desc("Disable Loop Strength Reduction Pass")); static cl::opt<bool> DisableCGP("disable-cgp", cl::Hidden, cl::desc("Disable Codegen Prepare")); +static cl::opt<bool> DisableCopyProp("disable-copyprop", cl::Hidden, + cl::desc("Disable Copy Propagation pass")); static cl::opt<bool> PrintLSR("print-lsr-output", cl::Hidden, cl::desc("Print LLVM IR produced by the loop-reduce pass")); static cl::opt<bool> PrintISelInput("print-isel-input", cl::Hidden, @@ -463,7 +465,7 @@ bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM, } // Copy propagation. - if (getOptLevel() != CodeGenOpt::None) { + if (getOptLevel() != CodeGenOpt::None && !DisableCopyProp) { PM.add(createMachineCopyPropagationPass()); printNoVerify(PM, "After copy propagation pass"); } |