[all-commits] [llvm/llvm-project] 058602: [X86] X86FixupInstTuning - fold BLENDPS -> MOVSD (...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 058602372e2bb7460469c5c53cc36f0a4b131f54
      https://github.com/llvm/llvm-project/commit/058602372e2bb7460469c5c53cc36f0a4b131f54
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2025-06-13 (Fri, 13 Jun 2025)

  Changed paths:
    M llvm/lib/Target/X86/X86FixupInstTuning.cpp
    M llvm/test/CodeGen/X86/avx-insertelt.ll
    M llvm/test/CodeGen/X86/avx-intrinsics-x86-upgrade.ll
    M llvm/test/CodeGen/X86/coalesce_commute_movsd.ll
    M llvm/test/CodeGen/X86/combine-and.ll
    M llvm/test/CodeGen/X86/combine-or-shuffle.ll
    M llvm/test/CodeGen/X86/commute-blend-sse41.ll
    M llvm/test/CodeGen/X86/horizontal-sum.ll
    M llvm/test/CodeGen/X86/insertelement-zero.ll
    M llvm/test/CodeGen/X86/masked_load.ll
    M llvm/test/CodeGen/X86/sse-insertelt.ll
    M llvm/test/CodeGen/X86/sse-scalar-fp-arith.ll
    M llvm/test/CodeGen/X86/sse2-intrinsics-fast-isel.ll
    M llvm/test/CodeGen/X86/sse2-intrinsics-x86-upgrade.ll
    M llvm/test/CodeGen/X86/sse2.ll
    M llvm/test/CodeGen/X86/sse41-intrinsics-fast-isel.ll
    M llvm/test/CodeGen/X86/sse41-intrinsics-x86-upgrade.ll
    M llvm/test/CodeGen/X86/vec-strict-128-fp16.ll
    M llvm/test/CodeGen/X86/vec_floor.ll
    M llvm/test/CodeGen/X86/vector-blend.ll
    M llvm/test/CodeGen/X86/vector-interleaved-load-i32-stride-4.ll
    M llvm/test/CodeGen/X86/vector-interleaved-load-i32-stride-5.ll
    M llvm/test/CodeGen/X86/vector-mul.ll
    M llvm/test/CodeGen/X86/vector-shuffle-128-v2.ll
    M llvm/test/CodeGen/X86/vector-shuffle-128-v4.ll
    M llvm/test/CodeGen/X86/vector-shuffle-256-v8.ll
    M llvm/test/CodeGen/X86/vector-shuffle-combining-ssse3.ll
    M llvm/test/CodeGen/X86/vector-shuffle-concatenation.ll
    M llvm/test/CodeGen/X86/vselect-2.ll
    M llvm/test/CodeGen/X86/vselect.ll

  Log Message:
  -----------
  [X86] X86FixupInstTuning - fold BLENDPS -> MOVSD (#144029)

Reduces codesize - make use of free PS<->PD domain transfers (like we do in many other places) and replace a suitable BLENDPS mask with MOVSD if OptSize or the scheduler prefers it



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