[llvm-commits] CVS: llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

[Evan Cheng]

Changes in directory llvm/lib/CodeGen/SelectionDAG:

DAGCombiner.cpp updated: 1.259 -> 1.260
---
Log message:

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

---
Diffs of the changes:  (+12 -9)

 DAGCombiner.cpp |   21 ++++++++++++---------
 1 files changed, 12 insertions(+), 9 deletions(-)


Index: llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:1.259 
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:1.260
--- llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:1.259 Sun Dec 10 20:23:46 2006
+++ llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp       Mon Dec 11 11:25:19 2006
@@ -3035,17 +3035,20 @@
   }
   
   // 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) { 



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