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Change the interface to the type legalization method

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ReplaceNodeResults: rather than returning a node which
must have the same number of results as the original
node (which means mucking around with MERGE_VALUES,
and which is also easy to get wrong since SelectionDAG
folding may mean you don't get the node you expect),
return the results in a vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60348 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands
2008-12-01 11:39:25 +00:00
parent d54d86038d
commit 1607f05cb7
20 changed files with 377 additions and 378 deletions
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24
lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
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@ -34,16 +34,8 @@ void DAGTypeLegalizer::PromoteIntegerResult(SDNode *N, unsigned ResNo) {
SDValue Result = SDValue();
// See if the target wants to custom expand this node.
if (TLI.getOperationAction(N->getOpcode(), N->getValueType(ResNo)) ==
TargetLowering::Custom) {
// If the target wants to, allow it to lower this itself.
if (SDNode *P = TLI.ReplaceNodeResults(N, DAG)) {
// Everything that once used N now uses P. We are guaranteed that the
// result value types of N and the result value types of P match.
ReplaceNodeWith(N, P);
return;
}
}
if (CustomLowerResults(N, ResNo))
return;
switch (N->getOpcode()) {
default:
@ -949,16 +941,8 @@ void DAGTypeLegalizer::ExpandIntegerResult(SDNode *N, unsigned ResNo) {
Lo = Hi = SDValue();
// See if the target wants to custom expand this node.
if (TLI.getOperationAction(N->getOpcode(), N->getValueType(ResNo)) ==
TargetLowering::Custom) {
// If the target wants to, allow it to lower this itself.
if (SDNode *P = TLI.ReplaceNodeResults(N, DAG)) {
// Everything that once used N now uses P. We are guaranteed that the
// result value types of N and the result value types of P match.
ReplaceNodeWith(N, P);
return;
}
}
if (CustomLowerResults(N, ResNo))
return;
switch (N->getOpcode()) {
default: