4d64ca7aea45215426318c05dcd083e4f4e6c6c4 - llvm-project/llvm

commit: 4d64ca7aea45215426318c05dcd083e4f4e6c6c4
[log]
author: Benjamin Lerman <qsr@chromium.org>
Tue Jan 20 10:20:22 2026 +0100
committer: Copybara-Service <copybara-worker@google.com>
Tue Jan 20 01:28:02 2026 -0800
tree: 88c7ec095ed3dc049a886d6aab162bd2a999febd
parent: a3933fc5c181cb90ca6af8bdc4226bf3f2424ba4 [diff]

[LivePhysRegs][AArch64] Remove XZR from live registers (#176324)

XZR is always a zero, and cannot be clobbered.

Co-authored-by: Benjamin Lerman <qsr@google.com>
GitOrigin-RevId: 3ca2a5fc0b84762f0e7d8a0e613fd69f7e344219

include/llvm/CodeGen/LivePhysRegs.h[diff]
test/CodeGen/AArch64/no-xzr-liveins.mir[Added - diff]

2 files changed

tree: 88c7ec095ed3dc049a886d6aab162bd2a999febd