[all-commits] [llvm/llvm-project] 6824bc: [IA] Relax the requirement of having ExtractValue ...

[Min-Yih Hsu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6824bcfdb4c8315a990f4b5ce2cb9f528281a823
      https://github.com/llvm/llvm-project/commit/6824bcfdb4c8315a990f4b5ce2cb9f528281a823
  Author: Min-Yih Hsu <min.hsu at sifive.com>
  Date:   2025-07-16 (Wed, 16 Jul 2025)

  Changed paths:
    M llvm/include/llvm/Analysis/VectorUtils.h
    M llvm/include/llvm/CodeGen/TargetLowering.h
    M llvm/lib/Analysis/VectorUtils.cpp
    M llvm/lib/CodeGen/InterleavedAccessPass.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.h
    M llvm/lib/Target/RISCV/RISCVISelLowering.h
    M llvm/lib/Target/RISCV/RISCVInterleavedAccess.cpp
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-deinterleave-load.ll
    M llvm/test/CodeGen/RISCV/rvv/vp-vector-interleaved-access.ll
    M llvm/test/Transforms/InterleavedAccess/AArch64/fixed-deinterleave-intrinsics.ll
    M llvm/test/Transforms/InterleavedAccess/AArch64/scalable-deinterleave-intrinsics.ll
    M llvm/test/Transforms/InterleavedAccess/AArch64/sve-deinterleave4.ll
    M llvm/test/Transforms/InterleavedAccess/AArch64/sve-interleaved-accesses.ll

  Log Message:
  -----------
  [IA] Relax the requirement of having ExtractValue users on deinterleave intrinsic (#148716)

There are cases where InstCombine / InstSimplify might sink extractvalue
instructions that use a deinterleave intrinsic into successor blocks,
which prevents InterleavedAccess from kicking in because the current
pattern requires deinterleave intrinsic to be used by extractvalue.
However, this requirement is bit too strict while we could have just
replaced the users of deinterleave intrinsic with whatever generated by
the target TLI hooks.



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