[all-commits] [llvm/llvm-project] e7d26a: Change the context instruction for computeKnownBit...

[Justin Bogner via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e7d26aceca071d67168062b2f7784c56234b0cb3
      https://github.com/llvm/llvm-project/commit/e7d26aceca071d67168062b2f7784c56234b0cb3
  Author: Justin Bogner <mail at justinbogner.com>
  Date:   2021-05-12 (Wed, 12 May 2021)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoadStoreVectorizer.cpp
    M llvm/test/Transforms/LoadStoreVectorizer/X86/vectorize-i8-nested-add.ll

  Log Message:
  -----------
  Change the context instruction for computeKnownBits in LoadStoreVectorizer pass

This change enables cases for which the index value for the first
load/store instruction in a pair could be a function argument. This
allows using llvm.assume to provide known bits information in such
cases.

Patch by Viacheslav Nikolaev. Thanks!

Differential Revision: https://reviews.llvm.org/D101680