Displaying 1 result from an estimated 1 matches for "isnarrowingprofit".
2010 Oct 07
0
[LLVMdev] Patch: Don't do unprofitable narrowing of loads.
...g copy)
@@ -1899,7 +1899,9 @@
else
bestOffset = (uint64_t)offset * (width/8);
bestMask = Mask.lshr(offset * (width/8) * 8);
- bestWidth = width;
+ EVT NewVT = EVT::getIntegerVT(*DAG.getContext(), width);
+ if (isNarrowingProfitable(Lod->getMemoryVT(), NewVT))
+ bestWidth = width;
break;
}
newMask = newMask << width;