diff options
Diffstat (limited to 'lib/CodeGen/LLVMTargetMachine.cpp')
| -rw-r--r-- | lib/CodeGen/LLVMTargetMachine.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp index 740c950842..9164f8278a 100644 --- a/lib/CodeGen/LLVMTargetMachine.cpp +++ b/lib/CodeGen/LLVMTargetMachine.cpp @@ -35,6 +35,8 @@ static cl::opt<bool> DisablePostRA("disable-post-ra", cl::Hidden, cl::desc("Disable Post Regalloc")); static cl::opt<bool> DisableBranchFold("disable-branch-fold", cl::Hidden, cl::desc("Disable branch folding")); +static cl::opt<bool> DisableTailDuplicate("disable-tail-duplicate", cl::Hidden, + cl::desc("Disable tail duplication")); static cl::opt<bool> DisableCodePlace("disable-code-place", cl::Hidden, cl::desc("Disable code placement")); static cl::opt<bool> DisableSSC("disable-ssc", cl::Hidden, @@ -344,6 +346,12 @@ bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM, printAndVerify(PM, "After BranchFolding"); } + // Tail duplication. + if (OptLevel != CodeGenOpt::None && !DisableTailDuplicate) { + PM.add(createTailDuplicationPass()); + printAndVerify(PM, "After TailDuplication"); + } + PM.add(createGCMachineCodeAnalysisPass()); if (PrintGCInfo) |