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Don't convert store double C, Ptr to store long C, Ptr if i64 is not a legal type.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32434 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2006-12-11 17:25:19 +00:00
parent bbf1e5e2e9
commit 25ece66ff3
1 changed files with 12 additions and 9 deletions
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21
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -3035,17 +3035,20 @@ SDOperand DAGCombiner::visitSTORE(SDNode *N) {
}
// Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr'
// FIXME: We shouldn't do this for TargetConstantFP's.
if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(Value)) {
SDOperand Tmp;
if (CFP->getValueType(0) == MVT::f32) {
Tmp = DAG.getConstant(FloatToBits(CFP->getValue()), MVT::i32);
} else {
assert(CFP->getValueType(0) == MVT::f64 && "Unknown FP type!");
Tmp = DAG.getConstant(DoubleToBits(CFP->getValue()), MVT::i64);
if (Value.getOpcode() != ISD::TargetConstantFP) {
SDOperand Tmp;
if (CFP->getValueType(0) == MVT::f32) {
Tmp = DAG.getConstant(FloatToBits(CFP->getValue()), MVT::i32);
return DAG.getStore(Chain, Tmp, Ptr, ST->getSrcValue(),
ST->getSrcValueOffset());
} else if (TLI.isTypeLegal(MVT::i64)) {
assert(CFP->getValueType(0) == MVT::f64 && "Unknown FP type!");
Tmp = DAG.getConstant(DoubleToBits(CFP->getValue()), MVT::i64);
return DAG.getStore(Chain, Tmp, Ptr, ST->getSrcValue(),
ST->getSrcValueOffset());
}
}
return DAG.getStore(Chain, Tmp, Ptr, ST->getSrcValue(),
ST->getSrcValueOffset());
}
if (CombinerAA) {