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Promote SETCC operands.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43340 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands 2007-10-25 12:32:31 +00:00
parent a3d10d808e
commit cac99db7da
1 changed files with 13 additions and 0 deletions
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13
lib/CodeGen/SelectionDAG/LegalizeDAGTypes.cpp
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@ -190,6 +190,7 @@ private:
SDOperand PromoteOperand_SELECT(SDNode *N, unsigned OpNo);
SDOperand PromoteOperand_BRCOND(SDNode *N, unsigned OpNo);
SDOperand PromoteOperand_BR_CC(SDNode *N, unsigned OpNo);
SDOperand PromoteOperand_SETCC(SDNode *N, unsigned OpNo);
SDOperand PromoteOperand_STORE(StoreSDNode *N, unsigned OpNo);
void PromoteSetCCOperands(SDOperand &LHS,SDOperand &RHS, ISD::CondCode Code);
@ -1456,6 +1457,7 @@ bool DAGTypeLegalizer::PromoteOperand(SDNode *N, unsigned OpNo) {
case ISD::SELECT: Res = PromoteOperand_SELECT(N, OpNo); break;
case ISD::BRCOND: Res = PromoteOperand_BRCOND(N, OpNo); break;
case ISD::BR_CC: Res = PromoteOperand_BR_CC(N, OpNo); break;
case ISD::SETCC: Res = PromoteOperand_SETCC(N, OpNo); break;
case ISD::STORE: Res = PromoteOperand_STORE(cast<StoreSDNode>(N),
OpNo); break;
@ -1577,6 +1579,17 @@ SDOperand DAGTypeLegalizer::PromoteOperand_BR_CC(SDNode *N, unsigned OpNo) {
N->getOperand(1), LHS, RHS, N->getOperand(4));
}
SDOperand DAGTypeLegalizer::PromoteOperand_SETCC(SDNode *N, unsigned OpNo) {
assert(OpNo == 0 && "Don't know how to promote this operand");
SDOperand LHS = N->getOperand(0);
SDOperand RHS = N->getOperand(1);
PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(2))->get());
// The CC (#2) is always legal.
return DAG.UpdateNodeOperands(SDOperand(N, 0), LHS, RHS, N->getOperand(2));
}
/// PromoteSetCCOperands - Promote the operands of a comparison. This code is
/// shared among BR_CC, SELECT_CC, and SETCC handlers.
void DAGTypeLegalizer::PromoteSetCCOperands(SDOperand &NewLHS,SDOperand &NewRHS,