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| author | Anton Korobeynikov <asl@math.spbu.ru> | 2012-01-22 14:08:34 +0000 |
|---|---|---|
| committer | Anton Korobeynikov <asl@math.spbu.ru> | 2012-01-22 14:08:34 +0000 |
| commit | 4a309f3d25f3a28065a8ccbd7067afaad745e2d1 (patch) | |
| tree | 4e85e05fad234bb8c4205f29cb4514c60447ced2 /lib/CodeGen | |
| parent | 2a53577728948052b8508760406b6ba68e55fc82 (diff) | |
| download | external_llvm-4a309f3d25f3a28065a8ccbd7067afaad745e2d1.zip external_llvm-4a309f3d25f3a28065a8ccbd7067afaad745e2d1.tar.gz external_llvm-4a309f3d25f3a28065a8ccbd7067afaad745e2d1.tar.bz2 | |
Add an option to disable buggy copy propagation pass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148662 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/LLVMTargetMachine.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp index a04f3ed..3a9f0f0 100644 --- a/lib/CodeGen/LLVMTargetMachine.cpp +++ b/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"); } |