[all-commits] [llvm/llvm-project] aa6a33: [LV] Remove EVLIndVarSimplify pass (#160454)

[Luke Lau via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: aa6a33ae6556690f58ccb7519f577c7fae2783ef
      https://github.com/llvm/llvm-project/commit/aa6a33ae6556690f58ccb7519f577c7fae2783ef
  Author: Luke Lau <luke at igalia.com>
  Date:   2025-09-25 (Thu, 25 Sep 2025)

  Changed paths:
    R llvm/include/llvm/Transforms/Vectorize/EVLIndVarSimplify.h
    M llvm/lib/Passes/PassBuilder.cpp
    M llvm/lib/Passes/PassRegistry.def
    M llvm/lib/Transforms/Vectorize/CMakeLists.txt
    R llvm/lib/Transforms/Vectorize/EVLIndVarSimplify.cpp
    R llvm/test/Transforms/LoopVectorize/RISCV/evl-iv-simplify.ll

  Log Message:
  -----------
  [LV] Remove EVLIndVarSimplify pass (#160454)

Initially this was needed to replace the fixed-step canonical IV with
the variable-step EVL IV, but this was eventually superseded by the loop
vectorizer doing this transform itself in #147222. The pass was then
removed from the RISC-V pipeline in #151483 and the loop vectorizer
stopped emitting the metadata used by the pass in #155760, so now
there's no users of it.



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