[PATCH] D58017: [DAG] Add SimplifyDemandedBits support for BSWAP/BITREVERSE

Simon Pilgrim via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Feb 27 03:14:14 PST 2019


RKSimon marked an inline comment as done.
RKSimon added inline comments.


================
Comment at: test/CodeGen/AArch64/arm64-rev.ll:102
+; CHECK-NEXT:    rev x8, x8
+; CHECK-NEXT:    lsr x0, x8, #32
 ; CHECK-NEXT:    ret
----------------
efriedma wrote:
> This is a regression... but it's sort of orthogonal to this patch, I guess.  It's okay for now.
I've raised https://bugs.llvm.org/show_bug.cgi?id=40881 to cover this - its a common issue as we make SimplifyDemandedBits more capable. 


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D58017/new/

https://reviews.llvm.org/D58017





More information about the llvm-commits mailing list