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Diagnose invalid instructions like "incl" with "too few operands for instruction"

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instead of crashing.  This fixes:
rdar://8431815 - crash when invalid operand is one that isn't present


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113921 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-09-15 03:50:11 +00:00
parent ee9ca07e7f
commit f884012c93
1 changed files with 4 additions and 2 deletions
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6
lib/Target/X86/AsmParser/X86AsmParser.cpp
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@ -1066,12 +1066,14 @@ X86ATTAsmParser::MatchInstruction(SMLoc IDLoc,
// Recover location info for the operand if we know which was the problem.
SMLoc ErrorLoc = IDLoc;
if (OrigErrorInfo != ~0U) {
if (OrigErrorInfo >= Operands.size())
return Error(IDLoc, "too few operands for instruction");
ErrorLoc = ((X86Operand*)Operands[OrigErrorInfo])->getStartLoc();
if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
}
Error(ErrorLoc, "invalid operand for instruction");
return true;
return Error(ErrorLoc, "invalid operand for instruction");
}
// If one instruction matched with a missing feature, report this as a