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

[Evan Cheng]

Changes in directory llvm/lib/CodeGen/SelectionDAG:

LegalizeDAG.cpp updated: 1.438 -> 1.439
---
Log message:

Expand (f64 extload f32) to (f64 fp_ext (load f32)) if f64 type action is expand.

---
Diffs of the changes:  (+10 -0)

 LegalizeDAG.cpp |   10 ++++++++++
 1 files changed, 10 insertions(+)


Index: llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.438 llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.439
--- llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.438	Tue Dec 12 20:38:13 2006
+++ llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp	Tue Dec 12 21:19:57 2006
@@ -4547,6 +4547,16 @@
         std::swap(Lo, Hi);
     } else {
       MVT::ValueType EVT = LD->getLoadedVT();
+
+      if (VT == MVT::f64 && EVT == MVT::f32) {
+        // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND
+        SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(),
+                                     LD->getSrcValueOffset());
+        // Remember that we legalized the chain.
+        AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1)));
+        ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi);
+        break;
+      }
     
       if (EVT == NVT)
         Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(),