[all-commits] [llvm/llvm-project] 498c72: [X86][SLM] +1uop for PSHUFBrm xmm

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 498c7236bc763cdee7e7a26e4e411b05b32735c5
      https://github.com/llvm/llvm-project/commit/498c7236bc763cdee7e7a26e4e411b05b32735c5
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-10-17 (Sun, 17 Oct 2021)

  Changed paths:
    M llvm/lib/Target/X86/X86ScheduleSLM.td
    M llvm/test/tools/llvm-mca/X86/SLM/resources-ssse3.s

  Log Message:
  -----------
  [X86][SLM] +1uop for PSHUFBrm xmm

Extra 1uop for folded pshufb ops, based off a recent llvm-exegesis capture and what Intel AoM / Agner reports as well.


  Commit: 680afaaa5d922781f3ec379328853398890d403c
      https://github.com/llvm/llvm-project/commit/680afaaa5d922781f3ec379328853398890d403c
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-10-17 (Sun, 17 Oct 2021)

  Changed paths:
    M llvm/lib/Target/X86/X86ScheduleSLM.td
    M llvm/test/tools/llvm-mca/X86/SLM/resources-pclmul.s

  Log Message:
  -----------
  [X86][SLM] Fix uops for PCLMULQDQ

Based off a recent llvm-exegesis capture and what Intel AoM / Agner reports as well.


  Commit: 5ed5df480257d24f480f01d784ed7cfd6dd25858
      https://github.com/llvm/llvm-project/commit/5ed5df480257d24f480f01d784ed7cfd6dd25858
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-10-17 (Sun, 17 Oct 2021)

  Changed paths:
    M llvm/lib/Target/X86/X86ScheduleSLM.td
    M llvm/test/tools/llvm-mca/X86/SLM/resources-sse42.s

  Log Message:
  -----------
  [X86][SLM] Fix uops for PCMPISTR/PCMPISTR instructions

Based off a recent llvm-exegesis capture and what Intel AoM / Agner reports as well.


  Commit: 0bb32b1b2121ed9fb07e8e2af8333a58e0a487a3
      https://github.com/llvm/llvm-project/commit/0bb32b1b2121ed9fb07e8e2af8333a58e0a487a3
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-10-17 (Sun, 17 Oct 2021)

  Changed paths:
    M llvm/lib/Target/X86/X86ScheduleSLM.td
    M llvm/test/tools/llvm-mca/X86/SLM/resources-x86_64.s

  Log Message:
  -----------
  [X86][SLM] Fix BitTest+Set uops + port usage

Both ports are required for BitTest ops. Update the uops counts + port usage based off the most recent llvm-exegesis captures and what Intel AoM / Agner reports as well.


  Commit: dbf5dc89306964bb613463cbec1637c6f720fbed
      https://github.com/llvm/llvm-project/commit/dbf5dc89306964bb613463cbec1637c6f720fbed
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-10-17 (Sun, 17 Oct 2021)

  Changed paths:
    M llvm/test/Analysis/CostModel/X86/div.ll
    M llvm/test/Analysis/CostModel/X86/rem.ll

  Log Message:
  -----------
  [CostModel][X86] Add div/rem by negative power-of-2 constants

We have backend optimizations for these (like we do for power-of-2 divisions), but currently the costmodel doesn't match them


Compare: https://github.com/llvm/llvm-project/compare/274b2439f839...dbf5dc893069