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implement promotion of select and select_cc, allowing MallocBench/gs to

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work with type promotion on x86.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43025 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-10-16 03:00:22 +00:00
parent c4c9660129
commit 59e84258cb
1 changed files with 19 additions and 0 deletions
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19
lib/CodeGen/SelectionDAG/LegalizeDAGTypes.cpp
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@ -130,6 +130,8 @@ private:
SDOperand PromoteResult_SETCC(SDNode *N);
SDOperand PromoteResult_LOAD(LoadSDNode *N);
SDOperand PromoteResult_SimpleIntBinOp(SDNode *N);
SDOperand PromoteResult_SELECT (SDNode *N);
SDOperand PromoteResult_SELECT_CC(SDNode *N);
// Result Expansion.
void ExpandResult(SDNode *N, unsigned ResNo);
@ -450,6 +452,10 @@ void DAGTypeLegalizer::PromoteResult(SDNode *N, unsigned ResNo) {
case ISD::ADD:
case ISD::SUB:
case ISD::MUL: Result = PromoteResult_SimpleIntBinOp(N); break;
case ISD::SELECT: Result = PromoteResult_SELECT(N); break;
case ISD::SELECT_CC: Result = PromoteResult_SELECT_CC(N); break;
}
// If Result is null, the sub-method took care of registering the result.
@ -552,6 +558,19 @@ SDOperand DAGTypeLegalizer::PromoteResult_SimpleIntBinOp(SDNode *N) {
return DAG.getNode(N->getOpcode(), LHS.getValueType(), LHS, RHS);
}
SDOperand DAGTypeLegalizer::PromoteResult_SELECT(SDNode *N) {
SDOperand LHS = GetPromotedOp(N->getOperand(1));
SDOperand RHS = GetPromotedOp(N->getOperand(2));
return DAG.getNode(ISD::SELECT, LHS.getValueType(), N->getOperand(0),LHS,RHS);
}
SDOperand DAGTypeLegalizer::PromoteResult_SELECT_CC(SDNode *N) {
SDOperand LHS = GetPromotedOp(N->getOperand(2));
SDOperand RHS = GetPromotedOp(N->getOperand(3));
return DAG.getNode(ISD::SELECT_CC, LHS.getValueType(), N->getOperand(0),
N->getOperand(1), LHS, RHS, N->getOperand(4));
}
//===----------------------------------------------------------------------===//
// Result Expansion
//===----------------------------------------------------------------------===//