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give better error diagnostics, for example:

Browse Source 
t.s:1:14: error: invalid operand for instruction
vldr.64	d17, [r0]   
       	     ^

instead of:

t.s:1:1: error: unrecognized instruction
vldr.64	d17, [r0]   
^



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117611 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-10-28 21:41:58 +00:00
parent 6274ec48b3
commit e73d4f8ec7
1 changed files with 20 additions and 5 deletions
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25
lib/Target/ARM/AsmParser/ARMAsmParser.cpp
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@@ -759,14 +759,29 @@ MatchAndEmitInstruction(SMLoc IDLoc,
MCStreamer &Out) { MCStreamer &Out) {
MCInst Inst; MCInst Inst;
unsigned ErrorInfo; unsigned ErrorInfo;
if (MatchInstructionImpl(Operands, Inst, ErrorInfo) == Match_Success) { switch (MatchInstructionImpl(Operands, Inst, ErrorInfo)) {
case Match_Success:
Out.EmitInstruction(Inst); Out.EmitInstruction(Inst);
return false; return false;
case Match_MissingFeature:
Error(IDLoc, "instruction requires a CPU feature not currently enabled");
return true;
case Match_InvalidOperand: {
SMLoc ErrorLoc = IDLoc;
if (ErrorInfo != ~0U) {
if (ErrorInfo >= Operands.size())
return Error(IDLoc, "too few operands for instruction");
ErrorLoc = ((ARMOperand*)Operands[ErrorInfo])->getStartLoc();
if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
}
return Error(ErrorLoc, "invalid operand for instruction");
}
case Match_MnemonicFail:
return Error(IDLoc, "unrecognized instruction mnemonic");
} }
// FIXME: We should give nicer diagnostics about the exact failure.
Error(IDLoc, "unrecognized instruction");
return true;
} }