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Implement expand support for MERGE_VALUEs that only produces one result.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44304 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-11-24 19:12:15 +00:00
parent ffc04d3e4f
commit c58d558a79
1 changed files with 4 additions and 0 deletions
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4
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -5401,6 +5401,10 @@ void SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){
break; break;
case ISD::MERGE_VALUES: case ISD::MERGE_VALUES:
if (Node->getNumValues() == 1) {
ExpandOp(Op.getOperand(0), Lo, Hi);
break;
}
// FIXME: For now only expand i64,chain = MERGE_VALUES (x, y) // FIXME: For now only expand i64,chain = MERGE_VALUES (x, y)
assert(Op.ResNo == 0 && Node->getNumValues() == 2 && assert(Op.ResNo == 0 && Node->getNumValues() == 2 &&
Op.getValue(1).getValueType() == MVT::Other && Op.getValue(1).getValueType() == MVT::Other &&