[PATCH] D57372: Demanded elements support for masked.load and masked.gather

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added inline comments.


================
Comment at: lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp:1455
+            DemandedPtrs.clearBit(i);
+          else if (CElt->isAllOnesValue())
+            DemandedPassThrough.clearBit(i);
----------------
We're not 100% consistent with this but for selects we try to use:

```
if (CElt->isNullValue())
  DemandedPtrs.clearBit(i);
else
  DemandedPassThrough.clearBit(i);
```


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D57372/new/

https://reviews.llvm.org/D57372