[all-commits] [llvm/llvm-project] 4a6402: [AArch64] fold subs ugt/ult to ands when the secon...

chenglin.bi via All-commits all-commits at lists.llvm.org
Mon Jan 16 20:02:07 PST 2023


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4a64024c1410692197e4b54e27e7b269a67c78f4
      https://github.com/llvm/llvm-project/commit/4a64024c1410692197e4b54e27e7b269a67c78f4
  Author: chenglin.bi <chenglin.bi at linaro.org>
  Date:   2023-01-17 (Tue, 17 Jan 2023)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/test/CodeGen/AArch64/andcompare.ll

  Log Message:
  -----------
  [AArch64] fold subs ugt/ult to ands when the second operand is a mask

https://alive2.llvm.org/ce/z/pLhHI9

Fix: https://github.com/llvm/llvm-project/issues/59598

Reviewed By: samtebbs

Differential Revision: https://reviews.llvm.org/D141829




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