diff options
| author | Dan Gohman <gohman@apple.com> | 2010-02-28 00:41:59 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-02-28 00:41:59 +0000 |
| commit | 8772f5041ce8e98695655a72a54b952583630617 (patch) | |
| tree | e561b05387738895c1bc62c7331514427c0ed467 /lib/CodeGen/LLVMTargetMachine.cpp | |
| parent | 225798143dbec36685f9d1e2fa82f5c4e70b0bf5 (diff) | |
Add a flag to addPassesToEmit* to disable the Verifier pass run
after LSR, so that clients can opt in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97357 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LLVMTargetMachine.cpp')
| -rw-r--r-- | lib/CodeGen/LLVMTargetMachine.cpp | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp index e3d0bbdaf4..57930b7932 100644 --- a/lib/CodeGen/LLVMTargetMachine.cpp +++ b/lib/CodeGen/LLVMTargetMachine.cpp @@ -115,9 +115,10 @@ LLVMTargetMachine::setCodeModelForStatic() { bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM, formatted_raw_ostream &Out, CodeGenFileType FileType, - CodeGenOpt::Level OptLevel) { + CodeGenOpt::Level OptLevel, + bool DisableVerify) { // Add common CodeGen passes. - if (addCommonCodeGenPasses(PM, OptLevel)) + if (addCommonCodeGenPasses(PM, OptLevel, DisableVerify)) return true; OwningPtr<MCContext> Context(new MCContext()); @@ -193,12 +194,13 @@ bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM, /// bool LLVMTargetMachine::addPassesToEmitMachineCode(PassManagerBase &PM, JITCodeEmitter &JCE, - CodeGenOpt::Level OptLevel) { + CodeGenOpt::Level OptLevel, + bool DisableVerify) { // Make sure the code model is set. setCodeModelForJIT(); // Add common CodeGen passes. - if (addCommonCodeGenPasses(PM, OptLevel)) + if (addCommonCodeGenPasses(PM, OptLevel, DisableVerify)) return true; addCodeEmitter(PM, OptLevel, JCE); @@ -221,9 +223,15 @@ static void printAndVerify(PassManagerBase &PM, /// emitting to assembly files or machine code output. /// bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM, - CodeGenOpt::Level OptLevel) { + CodeGenOpt::Level OptLevel, + bool DisableVerify) { // Standard LLVM-Level Passes. + // Before running any passes, run the verifier to determine if the input + // coming from the front-end and/or optimizer is valid. + if (!DisableVerify) + PM.add(createVerifierPass()); + // Optionally, tun split-GEPs and no-load GVN. if (EnableSplitGEPGVN) { PM.add(createGEPSplitterPass()); @@ -235,9 +243,6 @@ bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM, PM.add(createLoopStrengthReducePass(getTargetLowering())); if (PrintLSR) PM.add(createPrintFunctionPass("\n\n*** Code after LSR ***\n", &dbgs())); -#ifndef NDEBUG - PM.add(createVerifierPass()); -#endif } // Turn exception handling constructs into something the code generators can @@ -277,6 +282,11 @@ bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM, "*** Final LLVM Code input to ISel ***\n", &dbgs())); + // All passes which modify the LLVM IR are now complete; run the verifier + // to ensure that the IR is valid. + if (!DisableVerify) + PM.add(createVerifierPass()); + // Standard Lower-Level Passes. // Set up a MachineFunction for the rest of CodeGen to work on. |