JF Bastien 13c782674a x86: Emit LOCK prefix after DATA16 ...

Summary: x86 allows either ordering for the LOCK and DATA16 prefixes, but using GCC+GAS leads to different code generation than using LLVM. This change matches the order that GAS emits the x86 prefixes when a semicolon isn't used in inline assembly (see tc-i386.c comment before define LOCK_PREFIX), and helps simplify tooling that operates on the instruction's byte sequence (such as NaCl's validator). This change shouldn't have any performance impact.

Test Plan: ninja check

Reviewers: craig.topper, jvoung

Subscribers: jfb, llvm-commits

Differential Revision: http://reviews.llvm.org/D6630

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224283 91177308-0d34-0410-b5e6-96231b3b80d8

2014-12-15 22:34:58 +00:00

..

CMakeLists.txt

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LLVMBuild.txt

Update library dependencies.

2014-07-24 02:10:42 +00:00

Makefile

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X86AsmBackend.cpp

[CompactUnwind] Fix register encoding logic

2014-12-08 18:18:32 +00:00

X86BaseInfo.h

[X86] Clean up whitespace as well as minor coding style

2014-12-04 05:20:33 +00:00

X86ELFObjectWriter.cpp

X86, MC: Tidy up some whitespace in GetRelocType

2014-11-06 08:10:37 +00:00

X86ELFRelocationInfo.cpp

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X86FixupKinds.h

Canonicalize header guards into a common format.

2014-08-13 16:26:38 +00:00

X86MachObjectWriter.cpp

[X86] Clean up whitespace as well as minor coding style

2014-12-04 05:20:33 +00:00

X86MachORelocationInfo.cpp

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X86MCAsmInfo.cpp

Allow target to specify prefix for labels

2014-12-04 00:06:57 +00:00

X86MCAsmInfo.h

Move getNonexecutableStackSection up to the base ELF class.

2014-10-15 15:44:16 +00:00

X86MCCodeEmitter.cpp

x86: Emit LOCK prefix after DATA16

2014-12-15 22:34:58 +00:00

X86MCTargetDesc.cpp

Revert "ADT: correctly report isMSVCEnvironment for windows itanium"

2014-11-17 22:55:59 +00:00

X86MCTargetDesc.h

[X86] Clean up whitespace as well as minor coding style

2014-12-04 05:20:33 +00:00

X86WinCOFFObjectWriter.cpp

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X86WinCOFFStreamer.cpp

MC: split Win64EHUnwindEmitter into a shared streamer

2014-08-07 02:59:41 +00:00