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getOperandNum(): error if specified operand number is out of range.

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llvm-svn: 28775
This commit is contained in:
Evan Cheng 2006-06-13 21:47:27 +00:00
parent c50df7da72
commit fe3e6e1967
1 changed files with 7 additions and 0 deletions
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7
utils/TableGen/DAGISelEmitter.cpp
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@ -121,6 +121,13 @@ TreePatternNode *SDTypeConstraint::getOperandNum(unsigned OpNo,
assert(NumResults <= 1 &&
"We only work with nodes with zero or one result so far!");
if (OpNo >= (NumResults + N->getNumChildren())) {
std::cerr << "Invalid operand number " << OpNo << " ";
N->dump();
std::cerr << '\n';
exit(1);
}
if (OpNo < NumResults)
return N; // FIXME: need value #
else