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Can't fold the bit_convert is the store is a truncating store.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36962 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -3422,8 +3422,8 @@ SDOperand DAGCombiner::visitSTORE(SDNode *N) {
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SDOperand Ptr = ST->getBasePtr();
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// If this is a store of a bit convert, store the input value if the
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// resultant store does not need a higher alignment than the original.
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if (Value.getOpcode() == ISD::BIT_CONVERT) {
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// resultant store does not need a higher alignment than the original.
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if (Value.getOpcode() == ISD::BIT_CONVERT && !ST->isTruncatingStore()) {
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unsigned Align = ST->getAlignment();
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MVT::ValueType SVT = Value.getOperand(0).getValueType();
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unsigned OrigAlign = TLI.getTargetMachine().getTargetData()->
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