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

[Evan Cheng]

Changes in directory llvm/lib/CodeGen/SelectionDAG:

DAGCombiner.cpp updated: 1.282 -> 1.283
---
Log message:

Disable load width reduction xform of variant (zext (truncate load x)) for
big endian targets until llvm-gcc build issue has been resolved.

---
Diffs of the changes:  (+3 -1)

 DAGCombiner.cpp |    4 +++-
 1 files changed, 3 insertions(+), 1 deletion(-)


Index: llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:1.282 llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:1.283
--- llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:1.282	Mon Mar 26 02:12:51 2007
+++ llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp	Thu Mar 29 02:56:46 2007
@@ -2110,7 +2110,9 @@
 
   // fold (zext (truncate (load x))) -> (zext (smaller load x))
   // fold (zext (truncate (srl (load x), c))) -> (zext (small load (x+c/n)))
-  if (N0.getOpcode() == ISD::TRUNCATE) {
+  // FIXME: Temporarily disable this for big endian machines until llvm-gcc
+  // build issue has been resolved.
+  if (TLI.isLittleEndian() && N0.getOpcode() == ISD::TRUNCATE) {
     SDOperand NarrowLoad = ReduceLoadWidth(N0.Val);
     if (NarrowLoad.Val) {
       if (NarrowLoad.Val != N0.Val)