Bug fix: should check ABI alignment, not pref. alignment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37094 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2007-05-16 02:04:50 +00:00
parent 9307292ae2
commit 93003b8cf2

View File

@ -2685,7 +2685,7 @@ SDOperand DAGCombiner::visitBIT_CONVERT(SDNode *N) {
TLI.isOperationLegal(ISD::LOAD, VT)) {
LoadSDNode *LN0 = cast<LoadSDNode>(N0);
unsigned Align = TLI.getTargetMachine().getTargetData()->
getPrefTypeAlignment(getTypeForValueType(VT));
getABITypeAlignment(getTypeForValueType(VT));
unsigned OrigAlign = LN0->getAlignment();
if (Align <= OrigAlign) {
SDOperand Load = DAG.getLoad(VT, LN0->getChain(), LN0->getBasePtr(),
@ -3564,7 +3564,7 @@ SDOperand DAGCombiner::visitSTORE(SDNode *N) {
unsigned Align = ST->getAlignment();
MVT::ValueType SVT = Value.getOperand(0).getValueType();
unsigned OrigAlign = TLI.getTargetMachine().getTargetData()->
getPrefTypeAlignment(getTypeForValueType(SVT));
getABITypeAlignment(getTypeForValueType(SVT));
if (Align <= OrigAlign && TLI.isOperationLegal(ISD::STORE, SVT))
return DAG.getStore(Chain, Value.getOperand(0), Ptr, ST->getSrcValue(),
ST->getSrcValueOffset());