[all-commits] [llvm/llvm-project] 0e1695: [X86] IceLakeServer - ZMM FADD/FMUL can only use P...

Simon Pilgrim via All-commits all-commits at lists.llvm.org
Tue Feb 13 00:23:15 PST 2024


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0e16950e741aee7ffec865c81596e1411471475e
      https://github.com/llvm/llvm-project/commit/0e16950e741aee7ffec865c81596e1411471475e
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2024-02-13 (Tue, 13 Feb 2024)

  Changed paths:
    M llvm/lib/Target/X86/X86SchedIceLake.td
    M llvm/test/tools/llvm-mca/X86/IceLakeServer/resources-avx512.s
    M llvm/test/tools/llvm-mca/X86/IceLakeServer/resources-avx512dq.s

  Log Message:
  -----------
  [X86] IceLakeServer - ZMM FADD/FMUL can only use Port0

Fix discrepancy from when this was forked from the SkylakeServer model

This also fixes VRANGEPS/VRANGEPD instructions which typically match FADD characteristics

Confirmed with Agner + uops.info

Fixes #81504




More information about the All-commits mailing list