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fix a bug where we had an implicit assumption that the

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result instruction operand numbering matched the result pattern.

Fixing this allows us to move the xchg/test aliases to the .td file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118334 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-11-06 08:20:59 +00:00
parent 5e262bc943
commit 5bde734598
5 changed files with 40 additions and 29 deletions
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utils/TableGen/AsmMatcherEmitter.cpp
+3 -2
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@@ -1171,13 +1171,14 @@ void AsmMatcherInfo::BuildAliasOperandReference(MatchableInfo *II,
StringRef OperandName,
MatchableInfo::AsmOperand &Op) {
const CodeGenInstAlias &CGA = *II->DefRec.get<const CodeGenInstAlias*>();
// Set up the operand class.
for (unsigned i = 0, e = CGA.ResultOperands.size(); i != e; ++i)
if (CGA.ResultOperands[i].Name == OperandName) {
// It's safe to go with the first one we find, because CodeGenInstAlias
// validates that all operands with the same name have the same record.
Op.Class = getOperandClass(CGA.ResultInst->Operands[i]);
unsigned ResultIdx =CGA.getResultInstOperandIndexForResultOperandIndex(i);
Op.Class = getOperandClass(CGA.ResultInst->Operands[ResultIdx]);
Op.SrcOpName = OperandName;
return;
}