[all-commits] [llvm/llvm-project] 95fef1: [LV] Improve AnyOf reduction codegen. (#78304)

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 95fef1dfefd5467206e74c089d29806fcd82889b
      https://github.com/llvm/llvm-project/commit/95fef1dfefd5467206e74c089d29806fcd82889b
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2024-03-14 (Thu, 14 Mar 2024)

  Changed paths:
    M llvm/include/llvm/Transforms/Utils/LoopUtils.h
    M llvm/lib/Transforms/Utils/LoopUtils.cpp
    M llvm/lib/Transforms/Vectorize/LoopVectorizationPlanner.h
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
    M llvm/test/Transforms/LoopVectorize/AArch64/sve-select-cmp.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/select-cmp-reduction.ll
    M llvm/test/Transforms/LoopVectorize/select-cmp-predicated.ll
    M llvm/test/Transforms/LoopVectorize/select-cmp.ll
    M llvm/test/Transforms/LoopVectorize/select-reduction-start-value-may-be-undef-or-poison.ll

  Log Message:
  -----------
  [LV] Improve AnyOf reduction codegen. (#78304)

Update AnyOf reduction code generation to only keep track of the AnyOf
property in a boolean vector in the loop, only selecting either the new
or start value in the middle block.

The patch incorporates feedback from https://reviews.llvm.org/D153697.

This fixes the #62565, as now there aren't multiple uses of the
start/new values.

Fixes https://github.com/llvm/llvm-project/issues/62565

PR: https://github.com/llvm/llvm-project/pull/78304



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications