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In erroneous inline assembly we could mistakenly try to access the

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metadata operand as an actual operand, leading to an assert. Error
out in this case.

rdar://11007633

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153234 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2012-03-22 01:33:51 +00:00
parent 544b9b426f
commit aa206ffa6b
1 changed files with 5 additions and 1 deletions
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6
lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp
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@ -326,7 +326,11 @@ void AsmPrinter::EmitInlineAsm(const MachineInstr *MI) const {
OpNo += InlineAsm::getNumOperandRegisters(OpFlags) + 1;
}
if (OpNo >= MI->getNumOperands()) {
// We may have a location metadata attached to the end of the
// instruction, and at no point should see metadata at any
// other point while processing. It's an error if so.
if (OpNo >= MI->getNumOperands() ||
MI->getOperand(OpNo).isMetadata()) {
Error = true;
} else {
unsigned OpFlags = MI->getOperand(OpNo).getImm();