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

[Chris Lattner]

Changes in directory llvm/lib/CodeGen/SelectionDAG:

LegalizeDAG.cpp updated: 1.77 -> 1.78
---
Log message:

Until we have a dag combiner, promote using zextload's instead of extloads.
This gives the optimizer a bit of information about the top-part of the 
value.


---
Diffs of the changes:  (+2 -1)

 LegalizeDAG.cpp |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)


Index: llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.77 llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.78
--- llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.77	Sat Apr  9 20:13:15 2005
+++ llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp	Sat Apr  9 23:33:47 2005
@@ -1355,7 +1355,8 @@
   case ISD::LOAD:
     Tmp1 = LegalizeOp(Node->getOperand(0));   // Legalize the chain.
     Tmp2 = LegalizeOp(Node->getOperand(1));   // Legalize the pointer.
-    Result = DAG.getNode(ISD::EXTLOAD, NVT, Tmp1, Tmp2, VT);
+    // FIXME: When the DAG combiner exists, change this to use EXTLOAD!
+    Result = DAG.getNode(ISD::ZEXTLOAD, NVT, Tmp1, Tmp2, VT);
 
     // Remember that we legalized the chain.
     AddLegalizedOperand(Op.getValue(1), Result.getValue(1));