diff options
Diffstat (limited to 'llvm/lib/CodeGen/TargetPassConfig.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/TargetPassConfig.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/TargetPassConfig.cpp b/llvm/lib/CodeGen/TargetPassConfig.cpp index f5a016e9..ed36384 100644 --- a/llvm/lib/CodeGen/TargetPassConfig.cpp +++ b/llvm/lib/CodeGen/TargetPassConfig.cpp @@ -39,6 +39,7 @@ #include "llvm/Support/CommandLine.h" #include "llvm/Support/Compiler.h" #include "llvm/Support/Debug.h" +#include "llvm/Support/Discriminator.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/SaveAndRestore.h" #include "llvm/Support/Threading.h" @@ -165,6 +166,13 @@ static cl::opt<GlobalISelAbortMode> EnableGlobalISelAbort( clEnumValN(GlobalISelAbortMode::DisableWithDiag, "2", "Disable the abort but emit a diagnostic on failure"))); +// An option that disables inserting FS-AFDO discriminators before emit. +// This is mainly for debugging and tuning purpose. +static cl::opt<bool> + FSNoFinalDiscrim("fs-no-final-discrim", cl::init(false), cl::Hidden, + cl::desc("Do not insert FS-AFDO discriminators before " + "emit.")); + // Temporary option to allow experimenting with MachineScheduler as a post-RA // scheduler. Targets can "properly" enable this with // substitutePass(&PostRASchedulerID, &PostMachineSchedulerID). @@ -334,6 +342,8 @@ struct InsertedPass { namespace llvm { +extern cl::opt<bool> EnableFSDiscriminator; + class PassConfigImpl { public: // List of passes explicitly substituted by this target. Normally this is @@ -1167,6 +1177,10 @@ void TargetPassConfig::addMachinePasses() { addPass(&XRayInstrumentationID); addPass(&PatchableFunctionID); + if (EnableFSDiscriminator && !FSNoFinalDiscrim) + addPass(createMIRAddFSDiscriminatorsPass(PASS_LAST_DIS_BIT_BEG, + PASS_LAST_DIS_BIT_END)); + addPreEmitPass(); if (TM->Options.EnableIPRA) |