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Backing out 48222 temporarily.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49124 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2008-04-03 03:13:16 +00:00
parent ee4fa1977d
commit 6397c64441
11 changed files with 177 additions and 371 deletions
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16
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -78,7 +78,7 @@ namespace {
void AddUsersToWorkList(SDNode *N) {
for (SDNode::use_iterator UI = N->use_begin(), UE = N->use_end();
UI != UE; ++UI)
AddToWorkList(UI->getUser());
AddToWorkList(*UI);
}
/// visit - call the node-specific routine that knows how to fold each
@ -2704,7 +2704,7 @@ static bool ExtendUsesToFormExtLoad(SDNode *N, SDOperand N0,
bool isTruncFree = TLI.isTruncateFree(N->getValueType(0), N0.getValueType());
for (SDNode::use_iterator UI = N0.Val->use_begin(), UE = N0.Val->use_end();
UI != UE; ++UI) {
SDNode *User = UI->getUser();
SDNode *User = *UI;
if (User == N)
continue;
// FIXME: Only extend SETCC N, N and SETCC N, c for now.
@ -2743,7 +2743,7 @@ static bool ExtendUsesToFormExtLoad(SDNode *N, SDOperand N0,
bool BothLiveOut = false;
for (SDNode::use_iterator UI = N->use_begin(), UE = N->use_end();
UI != UE; ++UI) {
SDNode *User = UI->getUser();
SDNode *User = *UI;
for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) {
SDOperand UseOp = User->getOperand(i);
if (UseOp.Val == N && UseOp.ResNo == 0) {
@ -3880,7 +3880,7 @@ SDOperand DAGCombiner::visitFP_EXTEND(SDNode *N) {
MVT::ValueType VT = N->getValueType(0);
// If this is fp_round(fpextend), don't fold it, allow ourselves to be folded.
if (N->hasOneUse() && (N->use_begin())->getOpcode() == ISD::FP_ROUND)
if (N->hasOneUse() && (*N->use_begin())->getOpcode() == ISD::FP_ROUND)
return SDOperand();
// fold (fp_extend c1fp) -> c1fp
@ -4101,7 +4101,7 @@ bool DAGCombiner::CombineToPreIndexedLoadStore(SDNode *N) {
bool RealUse = false;
for (SDNode::use_iterator I = Ptr.Val->use_begin(),
E = Ptr.Val->use_end(); I != E; ++I) {
SDNode *Use = I->getUser();
SDNode *Use = *I;
if (Use == N)
continue;
if (Use->isPredecessorOf(N))
@ -4186,7 +4186,7 @@ bool DAGCombiner::CombineToPostIndexedLoadStore(SDNode *N) {
for (SDNode::use_iterator I = Ptr.Val->use_begin(),
E = Ptr.Val->use_end(); I != E; ++I) {
SDNode *Op = I->getUser();
SDNode *Op = *I;
if (Op == N ||
(Op->getOpcode() != ISD::ADD && Op->getOpcode() != ISD::SUB))
continue;
@ -4214,7 +4214,7 @@ bool DAGCombiner::CombineToPostIndexedLoadStore(SDNode *N) {
bool TryNext = false;
for (SDNode::use_iterator II = BasePtr.Val->use_begin(),
EE = BasePtr.Val->use_end(); II != EE; ++II) {
SDNode *Use = II->getUser();
SDNode *Use = *II;
if (Use == Ptr.Val)
continue;
@ -4224,7 +4224,7 @@ bool DAGCombiner::CombineToPostIndexedLoadStore(SDNode *N) {
bool RealUse = false;
for (SDNode::use_iterator III = Use->use_begin(),
EEE = Use->use_end(); III != EEE; ++III) {
SDNode *UseUse = III->getUser();
SDNode *UseUse = *III;
if (!((UseUse->getOpcode() == ISD::LOAD &&
cast<LoadSDNode>(UseUse)->getBasePtr().Val == Use) ||
(UseUse->getOpcode() == ISD::STORE &&