diff options
Diffstat (limited to 'lib/CodeGen/Passes.cpp')
-rw-r--r-- | lib/CodeGen/Passes.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/lib/CodeGen/Passes.cpp b/lib/CodeGen/Passes.cpp index 2877cf165b..6d12dd839c 100644 --- a/lib/CodeGen/Passes.cpp +++ b/lib/CodeGen/Passes.cpp @@ -84,7 +84,10 @@ char TargetPassConfig::ID = 0; TargetPassConfig::~TargetPassConfig() {} TargetPassConfig::TargetPassConfig(TargetMachine *tm, PassManagerBase &pm) - : ImmutablePass(ID), TM(tm), PM(pm), DisableVerify(false) { + : ImmutablePass(ID), TM(tm), PM(pm), Initialized(false), + DisableVerify(false), + EnableTailMerge(true) { + // Register all target independent codegen passes to activate their PassIDs, // including this pass itself. initializeCodeGen(*PassRegistry::getPassRegistry()); @@ -103,6 +106,12 @@ TargetPassConfig::TargetPassConfig() llvm_unreachable("TargetPassConfig should not be constructed on-the-fly"); } +// Helper to verify the analysis is really immutable. +void TargetPassConfig::setOpt(bool &Opt, bool Val) { + assert(!Initialized && "PassConfig is immutable"); + Opt = Val; +} + void TargetPassConfig::addPass(char &ID) { // FIXME: check user overrides Pass *P = Pass::createPass(ID); |