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change internal impl of dag combiner so that calls to CombineTo never have to

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make a temporary vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29618 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-08-11 17:56:38 +00:00
parent 8a842cf828
commit 3577e38c2b
1 changed files with 9 additions and 12 deletions
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21
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -75,16 +75,17 @@ namespace {
WorkList.push_back(N);
}
SDOperand CombineTo(SDNode *N, const std::vector<SDOperand> &To) {
SDOperand CombineTo(SDNode *N, const SDOperand *To, unsigned NumTo) {
assert(N->getNumValues() == NumTo && "Broken CombineTo call!");
++NodesCombined;
DEBUG(std::cerr << "\nReplacing "; N->dump();
std::cerr << "\nWith: "; To[0].Val->dump(&DAG);
std::cerr << " and " << To.size()-1 << " other values\n");
std::cerr << " and " << NumTo-1 << " other values\n");
std::vector<SDNode*> NowDead;
DAG.ReplaceAllUsesWith(N, &To[0], &NowDead);
DAG.ReplaceAllUsesWith(N, To, &NowDead);
// Push the new nodes and any users onto the worklist
for (unsigned i = 0, e = To.size(); i != e; ++i) {
for (unsigned i = 0, e = NumTo; i != e; ++i) {
WorkList.push_back(To[i].Val);
AddUsersToWorkList(To[i].Val);
}
@ -101,16 +102,12 @@ namespace {
}
SDOperand CombineTo(SDNode *N, SDOperand Res) {
std::vector<SDOperand> To;
To.push_back(Res);
return CombineTo(N, To);
return CombineTo(N, &Res, 1);
}
SDOperand CombineTo(SDNode *N, SDOperand Res0, SDOperand Res1) {
std::vector<SDOperand> To;
To.push_back(Res0);
To.push_back(Res1);
return CombineTo(N, To);
SDOperand To[] = { Res0, Res1 };
return CombineTo(N, To, 2);
}
private:
@ -253,7 +250,7 @@ void TargetLowering::DAGCombinerInfo::AddToWorklist(SDNode *N) {
SDOperand TargetLowering::DAGCombinerInfo::
CombineTo(SDNode *N, const std::vector<SDOperand> &To) {
return ((DAGCombiner*)DC)->CombineTo(N, To);
return ((DAGCombiner*)DC)->CombineTo(N, &To[0], To.size());
}
SDOperand TargetLowering::DAGCombinerInfo::