[all-commits] [llvm/llvm-project] e470dc: [AArch64][SME] Reduce ptrue count when filling p-r...

[Benjamin Maxwell via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e470dcae8d2c4138a89974ceeb413b1568d3a112
      https://github.com/llvm/llvm-project/commit/e470dcae8d2c4138a89974ceeb413b1568d3a112
  Author: Benjamin Maxwell <benjamin.maxwell at arm.com>
  Date:   2025-02-06 (Thu, 06 Feb 2025)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
    M llvm/test/CodeGen/AArch64/spill-fill-zpr-predicates.mir

  Log Message:
  -----------
  [AArch64][SME] Reduce ptrue count when filling p-regs from z-regs (#125523)

Currently, each expansion of `FILL_PPR_FROM_ZPR_SLOT_PSEUDO` creates a
new ptrue instruction. This patch adds a simple method to reuse a
previous ptrue instruction when expanding back-to-back fill pseudos.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications