[all-commits] [llvm/llvm-project] 53a395: [AArch64][GlobalISel] Legalize more CTPOP vector t...

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 53a395fda32cb0edd899202b6614595185b01ef1
      https://github.com/llvm/llvm-project/commit/53a395fda32cb0edd899202b6614595185b01ef1
  Author: David Green <david.green at arm.com>
  Date:   2025-03-20 (Thu, 20 Mar 2025)

  Changed paths:
    M llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
    M llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp
    M llvm/test/CodeGen/AArch64/ctpop.ll
    M llvm/test/CodeGen/AArch64/cttz.ll

  Log Message:
  -----------
  [AArch64][GlobalISel] Legalize more CTPOP vector types. (#131513)

Similar to other operations, s8, s16 s32 and s64 vector elements are
clamped to legal vector sizes, odd number of elements are widened to the
next power-2 and s128 is scalarized.

This helps legalize cttz as well as ctpop.



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