[PATCH] D146460: [SelectionDAG] Correctly reduce BV to shuffle with zero on big endian

Nemanja Ivanovic via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Mar 20 15:04:50 PDT 2023


nemanjai created this revision.
nemanjai added reviewers: arsenm, efriedma, PowerPC.
Herald added a subscriber: hiraditya.
Herald added a project: All.
nemanjai requested review of this revision.
Herald added a subscriber: wdng.
Herald added a project: LLVM.

This DAG combine is correct on little endian targets but is incorrect on big endian targets. Add big endian code to correct it.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D146460

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/PowerPC/pr61315.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D146460.506739.patch
Type: text/x-patch
Size: 6697 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20230320/b3fdb275/attachment.bin>


More information about the llvm-commits mailing list