diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86MCInstLower.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86MCInstLower.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86MCInstLower.cpp b/llvm/lib/Target/X86/X86MCInstLower.cpp index 49d1dbf5c06..2f69df064e7 100644 --- a/llvm/lib/Target/X86/X86MCInstLower.cpp +++ b/llvm/lib/Target/X86/X86MCInstLower.cpp @@ -16,6 +16,7 @@ #include "X86RegisterInfo.h" #include "X86ShuffleDecodeConstantPool.h" #include "InstPrinter/X86ATTInstPrinter.h" +#include "InstPrinter/X86InstComments.h" #include "MCTargetDesc/X86BaseInfo.h" #include "Utils/X86ShuffleDecode.h" #include "llvm/ADT/Optional.h" @@ -1290,6 +1291,13 @@ void X86AsmPrinter::EmitInstruction(const MachineInstr *MI) { X86MCInstLower MCInstLowering(*MF, *this); const X86RegisterInfo *RI = MF->getSubtarget<X86Subtarget>().getRegisterInfo(); + // Add a comment about EVEX-2-VEX compression for AVX-512 instrs that + // are compressed from EVEX encoding to VEX encoding. + if (TM.Options.MCOptions.ShowMCEncoding) { + if (MI->getAsmPrinterFlags() & AC_EVEX_2_VEX) + OutStreamer->AddComment("EVEX TO VEX Compression ", false); + } + switch (MI->getOpcode()) { case TargetOpcode::DBG_VALUE: llvm_unreachable("Should be handled target independently"); |
