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Prevent ARM Assembler crashing on unrecognised assembly format for DSB instruction 

llvm-svn: 159257
This commit is contained in:
Richard Barton 2012-06-27 09:36:19 +00:00
parent 38179d9693
commit 4b7558ef9a
1 changed files with 2 additions and 1 deletions
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3
llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
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@ -3256,7 +3256,8 @@ ARMAsmParser::OperandMatchResultTy ARMAsmParser::
parseMemBarrierOptOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
SMLoc S = Parser.getTok().getLoc();
const AsmToken &Tok = Parser.getTok();
assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
if (!Tok.is(AsmToken::Identifier))
return MatchOperand_NoMatch;
StringRef OptStr = Tok.getString();
unsigned Opt = StringSwitch<unsigned>(OptStr.slice(0, OptStr.size()))