Make testb optimization work on big-endian targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58874 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index 0a8538a..cf26166 100644
--- a/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -1370,7 +1370,10 @@
uint64_t newMask = (1ULL << width) - 1;
for (unsigned offset=0; offset<origWidth/width; offset++) {
if ((newMask & Mask)==Mask) {
- bestOffset = (uint64_t)offset * (width/8);
+ if (!TD->isLittleEndian())
+ bestOffset = (origWidth/width - offset - 1) * (width/8);
+ else
+ bestOffset = (uint64_t)offset * (width/8);
bestWidth = width;
break;
}