diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
-rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index aa283ad..a336e0a 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -5022,18 +5022,6 @@ SDValue DAGCombiner::visitLOAD(SDNode *N) { SDValue Chain = LD->getChain(); SDValue Ptr = LD->getBasePtr(); - // Try to infer better alignment information than the load already has. - if (OptLevel != CodeGenOpt::None && LD->isUnindexed()) { - if (unsigned Align = DAG.InferPtrAlignment(Ptr)) { - if (Align > LD->getAlignment()) - return DAG.getExtLoad(LD->getExtensionType(), N->getDebugLoc(), - LD->getValueType(0), - Chain, Ptr, LD->getSrcValue(), - LD->getSrcValueOffset(), LD->getMemoryVT(), - LD->isVolatile(), LD->isNonTemporal(), Align); - } - } - // If load is not volatile and there are no uses of the loaded value (and // the updated indexed value in case of indexed loads), change uses of the // chain value into uses of the chain input (i.e. delete the dead load). @@ -5099,6 +5087,18 @@ SDValue DAGCombiner::visitLOAD(SDNode *N) { } } + // Try to infer better alignment information than the load already has. + if (OptLevel != CodeGenOpt::None && LD->isUnindexed()) { + if (unsigned Align = DAG.InferPtrAlignment(Ptr)) { + if (Align > LD->getAlignment()) + return DAG.getExtLoad(LD->getExtensionType(), N->getDebugLoc(), + LD->getValueType(0), + Chain, Ptr, LD->getSrcValue(), + LD->getSrcValueOffset(), LD->getMemoryVT(), + LD->isVolatile(), LD->isNonTemporal(), Align); + } + } + if (CombinerAA) { // Walk up chain skipping non-aliasing memory nodes. SDValue BetterChain = FindBetterChain(N, Chain); @@ -5250,17 +5250,6 @@ SDValue DAGCombiner::visitSTORE(SDNode *N) { SDValue Value = ST->getValue(); SDValue Ptr = ST->getBasePtr(); - // Try to infer better alignment information than the store already has. - if (OptLevel != CodeGenOpt::None && ST->isUnindexed()) { - if (unsigned Align = DAG.InferPtrAlignment(Ptr)) { - if (Align > ST->getAlignment()) - return DAG.getTruncStore(Chain, N->getDebugLoc(), Value, - Ptr, ST->getSrcValue(), - ST->getSrcValueOffset(), ST->getMemoryVT(), - ST->isVolatile(), ST->isNonTemporal(), Align); - } - } - // If this is a store of a bit convert, store the input value if the // resultant store does not need a higher alignment than the original. if (Value.getOpcode() == ISD::BIT_CONVERT && !ST->isTruncatingStore() && @@ -5351,6 +5340,17 @@ SDValue DAGCombiner::visitSTORE(SDNode *N) { } } + // Try to infer better alignment information than the store already has. + if (OptLevel != CodeGenOpt::None && ST->isUnindexed()) { + if (unsigned Align = DAG.InferPtrAlignment(Ptr)) { + if (Align > ST->getAlignment()) + return DAG.getTruncStore(Chain, N->getDebugLoc(), Value, + Ptr, ST->getSrcValue(), + ST->getSrcValueOffset(), ST->getMemoryVT(), + ST->isVolatile(), ST->isNonTemporal(), Align); + } + } + if (CombinerAA) { // Walk up chain skipping non-aliasing memory nodes. SDValue BetterChain = FindBetterChain(N, Chain); |