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| author | Evan Cheng <evan.cheng@apple.com> | 2010-03-03 01:38:35 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-03-03 01:38:35 +0000 |
| commit | d89347cb49178da65a1c72cde5d54e79007d57ae (patch) | |
| tree | 390d4ebff4dd38864405f5d58a57e44b746bcd55 /lib/CodeGen/LLVMTargetMachine.cpp | |
| parent | 9066f4c6fc4cae76afd727a6ac11f86fdea8b280 (diff) | |
Add an option to enable machine cse (it's not doing anything yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97627 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LLVMTargetMachine.cpp')
| -rw-r--r-- | lib/CodeGen/LLVMTargetMachine.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp index 57930b7932..fd442db27a 100644 --- a/lib/CodeGen/LLVMTargetMachine.cpp +++ b/lib/CodeGen/LLVMTargetMachine.cpp @@ -67,6 +67,9 @@ static cl::opt<bool> VerifyMachineCode("verify-machineinstrs", cl::Hidden, cl::desc("Verify generated machine code"), cl::init(getenv("LLVM_VERIFY_MACHINEINSTRS")!=NULL)); +static cl::opt<bool> EnableMachineCSE("machine-cse", cl::Hidden, + cl::desc("Enable Machine CSE")); + static cl::opt<cl::boolOrDefault> AsmVerbose("asm-verbose", cl::desc("Add comments to directives."), cl::init(cl::BOU_UNSET)); @@ -317,6 +320,8 @@ bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM, if (OptLevel != CodeGenOpt::None) { PM.add(createOptimizeExtsPass()); + if (EnableMachineCSE) + PM.add(createMachineCSEPass()); if (!DisableMachineLICM) PM.add(createMachineLICMPass()); if (!DisableMachineSink) |