llvm

51abbf98 - [InstCombine] Deduce `align` and `nonnull` return attributes for `llvm.ptrmask`

[InstCombine] Deduce `align` and `nonnull` return attributes for `llvm.ptrmask` We can deduce the former based on the mask / incoming pointer alignment. We can set the latter based if know the result in non-zero (this is essentially just caching our analysis result). Differential Revision: https://reviews.llvm.org/D156636