Start implementing truncating stores and extending loads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19559 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2005-01-14 22:08:15 +00:00
parent 1cff05c7c2
commit 2ee743ff9b
2 changed files with 72 additions and 7 deletions

View File

@@ -247,7 +247,7 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
case ISD::ImplicitDef:
Tmp1 = LegalizeOp(Node->getOperand(0));
if (Tmp1 != Node->getOperand(0))
Result = DAG.getImplicitDef(cast<RegSDNode>(Node)->getReg());
Result = DAG.getImplicitDef(Tmp1, cast<RegSDNode>(Node)->getReg());
break;
case ISD::Constant:
// We know we don't need to expand constants here, constants only have one
@@ -525,18 +525,16 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
Result = DAG.getNode(ISD::STORE, MVT::Other, Result, Hi, Tmp2);
}
break;
case ISD::SELECT: {
case ISD::SELECT:
// FIXME: BOOLS MAY REQUIRE PROMOTION!
Tmp1 = LegalizeOp(Node->getOperand(0)); // Cond
Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal
SDOperand Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal
if (Tmp1 != Node->getOperand(0) ||
Tmp2 != Node->getOperand(1) ||
Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal
if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1) ||
Tmp3 != Node->getOperand(2))
Result = DAG.getNode(ISD::SELECT, Node->getValueType(0), Tmp1, Tmp2,Tmp3);
break;
}
case ISD::SETCC:
switch (getTypeAction(Node->getOperand(0).getValueType())) {
case Legal: