diff options
Diffstat (limited to 'llvm/lib/CodeGen/Passes.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/Passes.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/Passes.cpp b/llvm/lib/CodeGen/Passes.cpp index 0e8e50eca79..7a7c42bfcc6 100644 --- a/llvm/lib/CodeGen/Passes.cpp +++ b/llvm/lib/CodeGen/Passes.cpp @@ -70,6 +70,8 @@ static cl::opt<bool> DisableMachineSink("disable-machine-sink", cl::Hidden, cl::desc("Disable Machine Sinking")); static cl::opt<bool> DisableLSR("disable-lsr", cl::Hidden, cl::desc("Disable Loop Strength Reduction Pass")); +static cl::opt<bool> DisableConstantHoisting("disable-constant-hoisting", + cl::Hidden, cl::desc("Disable ConstantHoisting")); static cl::opt<bool> DisableCGP("disable-cgp", cl::Hidden, cl::desc("Disable Codegen Prepare")); static cl::opt<bool> DisableCopyProp("disable-copyprop", cl::Hidden, @@ -396,6 +398,10 @@ void TargetPassConfig::addIRPasses() { // Make sure that no unreachable blocks are instruction selected. addPass(createUnreachableBlockEliminationPass()); + + // Prepare expensive constants for SelectionDAG. + if (getOptLevel() != CodeGenOpt::None && !DisableConstantHoisting) + addPass(createConstantHoistingPass()); } /// Turn exception handling constructs into something the code generators can |
