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promote extload i1 -> extload i8

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21258 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2005-04-12 20:30:10 +00:00
parent 3464547968
commit 1c51c6ac13
1 changed files with 10 additions and 2 deletions
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12
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@@ -448,8 +448,17 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
MVT::ValueType SrcVT = cast<MVTSDNode>(Node)->getExtraValueType(); MVT::ValueType SrcVT = cast<MVTSDNode>(Node)->getExtraValueType();
switch (TLI.getOperationAction(Node->getOpcode(), SrcVT)) { switch (TLI.getOperationAction(Node->getOpcode(), SrcVT)) {
case TargetLowering::Promote:
default: assert(0 && "This action is not supported yet!"); default: assert(0 && "This action is not supported yet!");
case TargetLowering::Promote:
assert(SrcVT == MVT::i1 && "Can only promote EXTLOAD from i1 -> i8!");
Result = DAG.getNode(Node->getOpcode(), Node->getValueType(0),
Tmp1, Tmp2, MVT::i8);
// Since loads produce two values, make sure to remember that we legalized
// both of them.
AddLegalizedOperand(SDOperand(Node, 0), Result);
AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1));
return Result.getValue(Op.ResNo);
case TargetLowering::Legal: case TargetLowering::Legal:
if (Tmp1 != Node->getOperand(0) || if (Tmp1 != Node->getOperand(0) ||
Tmp2 != Node->getOperand(1)) Tmp2 != Node->getOperand(1))
@@ -463,7 +472,6 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
AddLegalizedOperand(SDOperand(Node, 0), Result); AddLegalizedOperand(SDOperand(Node, 0), Result);
AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1));
return Result.getValue(Op.ResNo); return Result.getValue(Op.ResNo);
break;
case TargetLowering::Expand: case TargetLowering::Expand:
assert(Node->getOpcode() != ISD::EXTLOAD && assert(Node->getOpcode() != ISD::EXTLOAD &&
"EXTLOAD should always be supported!"); "EXTLOAD should always be supported!");