[all-commits] [llvm/llvm-project] 1a8e5b: [X86] Add tuning features for Hygon C86-4G-M7 (#20...

[Xiaomeng Zhang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1a8e5b6f594926adaaa0417543773108b7fd737d
      https://github.com/llvm/llvm-project/commit/1a8e5b6f594926adaaa0417543773108b7fd737d
  Author: Xiaomeng Zhang <zhangxiaomeng at hygon.cn>
  Date:   2026-07-14 (Tue, 14 Jul 2026)

  Changed paths:
    M llvm/lib/Target/X86/X86.td
    M llvm/test/CodeGen/X86/slow-unaligned-mem.ll
    M llvm/test/CodeGen/X86/x86-prefer-no-gather-no-scatter.ll
    A llvm/test/Transforms/LoopVectorize/X86/x86-prefer-no-gather.ll
    A llvm/test/Transforms/LoopVectorize/X86/x86-prefer-no-scatter.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-abs.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-add-saddo.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-add-ssat.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-add-uaddo.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-add-usat.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-add.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-div.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-fix.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-fshl-rot.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-fshl.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-fshr-rot.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-fshr.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-mul-smulo.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-mul-umulo.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-mul.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-scmp.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-smax.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-smin.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-sub-ssat.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-sub-ssubo.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-sub-usat.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-sub-usubo.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-sub.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-ucmp.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-umax.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-umin.ll
    M llvm/test/Transforms/SLPVectorizer/X86/fabs.ll
    M llvm/test/Transforms/SLPVectorizer/X86/fcopysign.ll
    M llvm/test/Transforms/SLPVectorizer/X86/fma.ll
    M llvm/test/Transforms/SLPVectorizer/X86/fmaxnum.ll
    M llvm/test/Transforms/SLPVectorizer/X86/fminnum.ll
    M llvm/test/Transforms/SLPVectorizer/X86/fmuladd.ll
    M llvm/test/Transforms/SLPVectorizer/X86/fptosi-inseltpoison.ll
    M llvm/test/Transforms/SLPVectorizer/X86/fptosi.ll
    M llvm/test/Transforms/SLPVectorizer/X86/fptoui.ll
    M llvm/test/Transforms/SLPVectorizer/X86/fround.ll
    M llvm/test/Transforms/SLPVectorizer/X86/shift-ashr.ll
    M llvm/test/Transforms/SLPVectorizer/X86/shift-lshr.ll
    M llvm/test/Transforms/SLPVectorizer/X86/shift-shl.ll
    M llvm/test/Transforms/SLPVectorizer/X86/sitofp-inseltpoison.ll
    M llvm/test/Transforms/SLPVectorizer/X86/sitofp.ll
    M llvm/test/Transforms/SLPVectorizer/X86/uitofp.ll
    A llvm/test/Transforms/SLPVectorizer/X86/x86-prefer-no-gather.ll

  Log Message:
  -----------
  [X86] Add tuning features for Hygon C86-4G-M7 (#205992)

Add TuningPreferNoGather. TuningPreferNoScatter and TuningPrefer256Bit to C864GM7Tuning.

This will improve the performance of the C86-4G-M7.



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