Commit 4351822a authored by Daniel Sanders's avatar Daniel Sanders
Browse files

Merging r225521: 

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r225521 | tomatabacu | 2015-01-09 15:00:30 +0000 (Fri, 09 Jan 2015) | 1 line

[mips] Add comment which explains why we need to change the assembler options before and after inline asm blocks. NFC.
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llvm-svn: 232084
parent 60d1be21

llvm/lib/Target/Mips/MipsAsmPrinter.cpp

+6 −0
Original line number Diff line number Diff line
@@ -725,6 +725,12 @@ void MipsAsmPrinter::emitInlineAsmStart( 
    const MCSubtargetInfo &StartInfo) const {

  MipsTargetStreamer &TS = getTargetStreamer();



  // GCC's choice of assembler options for inline assembly code ('at', 'macro'

  // and 'reorder') is different from LLVM's choice for generated code ('noat',

  // 'nomacro' and 'noreorder').

  // In order to maintain compatibility with inline assembly code which depends

  // on GCC's assembler options being used, we have to switch to those options

  // for the duration of the inline assembly block and then switch back.

  TS.emitDirectiveSetPush();

  TS.emitDirectiveSetAt();

  TS.emitDirectiveSetMacro();