diff options
Diffstat (limited to 'llvm/lib/Target/PowerPC/PPCTargetMachine.cpp')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCTargetMachine.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp b/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp index bc5d32b37fd..9e146786469 100644 --- a/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp +++ b/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp @@ -40,6 +40,10 @@ using namespace llvm; + +static cl::opt<bool> + EnableBranchCoalescing("enable-ppc-branch-coalesce", cl::Hidden, + cl::desc("enable coalescing of duplicate branches for PPC")); static cl:: opt<bool> DisableCTRLoops("disable-ppc-ctrloops", cl::Hidden, cl::desc("Disable CTR loops for PPC")); @@ -378,6 +382,10 @@ bool PPCPassConfig::addInstSelector() { } void PPCPassConfig::addMachineSSAOptimization() { + // PPCBranchCoalescingPass need to be done before machine sinking + // since it merges empty blocks. + if (EnableBranchCoalescing && getOptLevel() != CodeGenOpt::None) + addPass(createPPCBranchCoalescingPass()); TargetPassConfig::addMachineSSAOptimization(); // For little endian, remove where possible the vector swap instructions // introduced at code generation to normalize vector element order. |
