Move something that should be in the dag combiner from the legalizer to the
dag combiner.
llvm-svn: 32431
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 4b7c494..750f0bb 100644
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -3034,6 +3034,20 @@
ST->getSrcValueOffset());
}
+ // 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);
+ }
+ return DAG.getStore(Chain, Tmp, Ptr, ST->getSrcValue(),
+ ST->getSrcValueOffset());
+ }
+
if (CombinerAA) {
// Walk up chain skipping non-aliasing memory nodes.
SDOperand BetterChain = FindBetterChain(N, Chain);