diff options
Diffstat (limited to 'lib/CodeGen/LLVMTargetMachine.cpp')
| -rw-r--r-- | lib/CodeGen/LLVMTargetMachine.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp index 268584c06c..3e69069fa9 100644 --- a/lib/CodeGen/LLVMTargetMachine.cpp +++ b/lib/CodeGen/LLVMTargetMachine.cpp @@ -55,6 +55,8 @@ static cl::opt<bool> DisableEarlyTailDup("disable-early-taildup", cl::Hidden, cl::desc("Disable pre-register allocation tail duplication")); static cl::opt<bool> EnableBlockPlacement("enable-block-placement", cl::Hidden, cl::desc("Enable probability-driven block placement")); +static cl::opt<bool> EnableBlockPlacementStats("enable-block-placement-stats", + cl::Hidden, cl::desc("Collect probability-driven block placement stats")); static cl::opt<bool> DisableCodePlace("disable-code-place", cl::Hidden, cl::desc("Disable code placement")); static cl::opt<bool> DisableSSC("disable-ssc", cl::Hidden, @@ -499,6 +501,12 @@ bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM, PM.add(createCodePlacementOptPass()); printNoVerify(PM, "After CodePlacementOpt"); } + + // Run a separate pass to collect block placement statistics. + if (EnableBlockPlacementStats) { + PM.add(createMachineBlockPlacementStatsPass()); + printNoVerify(PM, "After MachineBlockPlacementStats"); + } } if (addPreEmitPass(PM, OptLevel)) |