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| author | Michael Liao <michael.liao@intel.com> | 2012-09-26 05:13:44 +0000 |
|---|---|---|
| committer | Michael Liao <michael.liao@intel.com> | 2012-09-26 05:13:44 +0000 |
| commit | 4e9485d7322b6ce925b9390d1459349c1380c9a5 (patch) | |
| tree | b5e622e8bdda0ed7d36000c4764206bc66019bbf /lib/Target/X86/InstPrinter | |
| parent | 1293130f4f53e736678c45e712802f0dd087c80b (diff) | |
| download | llvm-4e9485d7322b6ce925b9390d1459349c1380c9a5.tar.gz llvm-4e9485d7322b6ce925b9390d1459349c1380c9a5.tar.bz2 llvm-4e9485d7322b6ce925b9390d1459349c1380c9a5.tar.xz | |
Add 'lock' prefix output support in assembly printer
- Instead of embedding 'lock' into each mnemonic of atomic
instructions except 'xchg', we teach X86 assembly printer to output 'lock'
prefix similar to or consistent with code emitter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164659 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/InstPrinter')
| -rw-r--r-- | lib/Target/X86/InstPrinter/X86ATTInstPrinter.cpp | 7 | ||||
| -rw-r--r-- | lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp | 7 |
2 files changed, 14 insertions, 0 deletions
diff --git a/lib/Target/X86/InstPrinter/X86ATTInstPrinter.cpp b/lib/Target/X86/InstPrinter/X86ATTInstPrinter.cpp index 46e72f9f60..b123afa001 100644 --- a/lib/Target/X86/InstPrinter/X86ATTInstPrinter.cpp +++ b/lib/Target/X86/InstPrinter/X86ATTInstPrinter.cpp @@ -15,6 +15,7 @@ #define DEBUG_TYPE "asm-printer" #include "X86ATTInstPrinter.h" #include "X86InstComments.h" +#include "MCTargetDesc/X86BaseInfo.h" #include "MCTargetDesc/X86MCTargetDesc.h" #include "llvm/MC/MCInst.h" #include "llvm/MC/MCAsmInfo.h" @@ -38,6 +39,12 @@ void X86ATTInstPrinter::printRegName(raw_ostream &OS, void X86ATTInstPrinter::printInst(const MCInst *MI, raw_ostream &OS, StringRef Annot) { + const MCInstrDesc &Desc = MII.get(MI->getOpcode()); + uint64_t TSFlags = Desc.TSFlags; + + if (TSFlags & X86II::LOCK) + OS << "\tlock\n"; + // Try to print any aliases first. if (!printAliasInstr(MI, OS)) printInstruction(MI, OS); diff --git a/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp b/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp index ad14e34707..f9bb3be9d7 100644 --- a/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp +++ b/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp @@ -15,6 +15,7 @@ #define DEBUG_TYPE "asm-printer" #include "X86IntelInstPrinter.h" #include "X86InstComments.h" +#include "MCTargetDesc/X86BaseInfo.h" #include "MCTargetDesc/X86MCTargetDesc.h" #include "llvm/MC/MCInst.h" #include "llvm/MC/MCExpr.h" @@ -32,6 +33,12 @@ void X86IntelInstPrinter::printRegName(raw_ostream &OS, unsigned RegNo) const { void X86IntelInstPrinter::printInst(const MCInst *MI, raw_ostream &OS, StringRef Annot) { + const MCInstrDesc &Desc = MII.get(MI->getOpcode()); + uint64_t TSFlags = Desc.TSFlags; + + if (TSFlags & X86II::LOCK) + OS << "\tlock\n"; + printInstruction(MI, OS); // Next always print the annotation. |