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Use both the cached TLI and the subtarget off of the DAG in 

the DAG combiner.

llvm-svn: 219367
This commit is contained in:
Eric Christopher 2014-10-08 23:38:39 +00:00
parent 4e3d6ded99
commit f55d4714d2
1 changed files with 10 additions and 15 deletions
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25
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -6678,10 +6678,7 @@ SDValue DAGCombiner::visitFADD(SDNode *N) {
// FADD -> FMA combines:
if ((Options.AllowFPOpFusion == FPOpFusion::Fast || Options.UnsafeFPMath) &&
DAG.getTarget()
.getSubtargetImpl()
->getTargetLowering()
->isFMAFasterThanFMulAndFAdd(VT) &&
TLI.isFMAFasterThanFMulAndFAdd(VT) &&
(!LegalOperations || TLI.isOperationLegalOrCustom(ISD::FMA, VT))) {
// fold (fadd (fmul x, y), z) -> (fma x, y, z)
@ -6759,9 +6756,7 @@ SDValue DAGCombiner::visitFSUB(SDNode *N) {
// FSUB -> FMA combines:
if ((Options.AllowFPOpFusion == FPOpFusion::Fast || Options.UnsafeFPMath) &&
DAG.getTarget().getSubtargetImpl()
->getTargetLowering()
->isFMAFasterThanFMulAndFAdd(VT) &&
TLI.isFMAFasterThanFMulAndFAdd(VT) &&
(!LegalOperations || TLI.isOperationLegalOrCustom(ISD::FMA, VT))) {
// fold (fsub (fmul x, y), z) -> (fma x, y, (fneg z))
@ -8209,8 +8204,8 @@ SDValue DAGCombiner::visitLOAD(SDNode *N) {
}
}
bool UseAA = CombinerAA.getNumOccurrences() > 0 ? CombinerAA :
TLI.getTargetMachine().getSubtarget<TargetSubtargetInfo>().useAA();
bool UseAA = CombinerAA.getNumOccurrences() > 0 ? CombinerAA
: DAG.getSubtarget().useAA();
#ifndef NDEBUG
if (CombinerAAOnlyFunc.getNumOccurrences() &&
CombinerAAOnlyFunc != DAG.getMachineFunction().getName())
@ -8540,8 +8535,7 @@ struct LoadedSlice {
// At this point, we know that we perform a cross-register-bank copy.
// Check if it is expensive.
const TargetRegisterInfo *TRI =
TLI.getTargetMachine().getSubtargetImpl()->getRegisterInfo();
const TargetRegisterInfo *TRI = DAG->getSubtarget().getRegisterInfo();
// Assume bitcasts are cheap, unless both register classes do not
// explicitly share a common sub class.
if (!TRI || TRI->getCommonSubClass(ArgRC, ResRC))
@ -9799,8 +9793,8 @@ SDValue DAGCombiner::visitSTORE(SDNode *N) {
if (NewST.getNode())
return NewST;
bool UseAA = CombinerAA.getNumOccurrences() > 0 ? CombinerAA :
TLI.getTargetMachine().getSubtarget<TargetSubtargetInfo>().useAA();
bool UseAA = CombinerAA.getNumOccurrences() > 0 ? CombinerAA
: DAG.getSubtarget().useAA();
#ifndef NDEBUG
if (CombinerAAOnlyFunc.getNumOccurrences() &&
CombinerAAOnlyFunc != DAG.getMachineFunction().getName())
@ -12071,8 +12065,9 @@ bool DAGCombiner::isAlias(LSBaseSDNode *Op0, LSBaseSDNode *Op1) const {
return false;
}
bool UseAA = CombinerGlobalAA.getNumOccurrences() > 0 ? CombinerGlobalAA :
TLI.getTargetMachine().getSubtarget<TargetSubtargetInfo>().useAA();
bool UseAA = CombinerGlobalAA.getNumOccurrences() > 0
? CombinerGlobalAA
: DAG.getSubtarget().useAA();
#ifndef NDEBUG
if (CombinerAAOnlyFunc.getNumOccurrences() &&
CombinerAAOnlyFunc != DAG.getMachineFunction().getName())