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| author | Patrick Holland <patrickeholland@gmail.com> | 2022-01-02 16:37:14 -0800 |
|---|---|---|
| committer | Patrick Holland <patrickeholland@gmail.com> | 2022-01-11 13:50:14 -0800 |
| commit | 85e6e748d426f8992016914b07bc67c4da22e278 (patch) | |
| tree | 34736b61f2368ef6af9e0a7b7972d9b149151fb7 /llvm/tools/llvm-mca/llvm-mca.cpp | |
| parent | e7cb716ef95551000d9de2d0334ab1bf84a120a3 (diff) | |
| download | llvm-85e6e748d426f8992016914b07bc67c4da22e278.zip llvm-85e6e748d426f8992016914b07bc67c4da22e278.tar.gz llvm-85e6e748d426f8992016914b07bc67c4da22e278.tar.bz2 | |
[MCA] Switching from conservatively guessing which instructions are
memory-barrier instructions to providing targets and developers a convenient
way to explicitly declare which instructions are memory-barriers.
Differential Revision: https://reviews.llvm.org/D116779
Diffstat (limited to 'llvm/tools/llvm-mca/llvm-mca.cpp')
| -rw-r--r-- | llvm/tools/llvm-mca/llvm-mca.cpp | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/llvm/tools/llvm-mca/llvm-mca.cpp b/llvm/tools/llvm-mca/llvm-mca.cpp index 0501336..1826491 100644 --- a/llvm/tools/llvm-mca/llvm-mca.cpp +++ b/llvm/tools/llvm-mca/llvm-mca.cpp @@ -219,6 +219,11 @@ static cl::opt<bool> ShowEncoding( cl::desc("Print encoding information in the instruction info view"), cl::cat(ViewOptions), cl::init(false)); +static cl::opt<bool> ShowBarriers( + "show-barriers", + cl::desc("Print memory barrier information in the instruction info view"), + cl::cat(ViewOptions), cl::init(false)); + static cl::opt<bool> DisableCustomBehaviour( "disable-cb", cl::desc( @@ -504,7 +509,7 @@ int main(int argc, char **argv) { // (which does nothing). IPP = std::make_unique<mca::InstrPostProcess>(*STI, *MCII); - std::vector<std::unique_ptr<mca::Instruction>> LoweredSequence; + SmallVector<std::unique_ptr<mca::Instruction>> LoweredSequence; for (const MCInst &MCI : Insts) { Expected<std::unique_ptr<mca::Instruction>> Inst = IB.createInstruction(MCI); @@ -548,7 +553,8 @@ int main(int argc, char **argv) { // Create the views for this pipeline, execute, and emit a report. if (PrintInstructionInfoView) { Printer.addView(std::make_unique<mca::InstructionInfoView>( - *STI, *MCII, CE, ShowEncoding, Insts, *IP)); + *STI, *MCII, CE, ShowEncoding, Insts, *IP, LoweredSequence, + ShowBarriers)); } Printer.addView( std::make_unique<mca::ResourcePressureView>(*STI, *IP, Insts)); @@ -624,7 +630,8 @@ int main(int argc, char **argv) { if (PrintInstructionInfoView) Printer.addView(std::make_unique<mca::InstructionInfoView>( - *STI, *MCII, CE, ShowEncoding, Insts, *IP)); + *STI, *MCII, CE, ShowEncoding, Insts, *IP, LoweredSequence, + ShowBarriers)); // Fetch custom Views that are to be placed after the InstructionInfoView. // Refer to the comment paired with the CB->getStartViews(*IP, Insts); line |