commit e34c0fee14670a93f84a21afb63dc66a19ffb988
author Andrew Pinski <quic_apinski@quicinc.com> Tue Jul 22 10:26:54 2025 -0700
committer Andrew Pinski <quic_apinski@quicinc.com> Sat Jul 26 11:21:34 2025 -0700
tree b538dc2966456ea3c6c467ef3469ad42393bb26c
parent 4cb9e69bf843d0102de14050e3b59b3475f111b1

aarch64: Fix fma steering when rename fails [PR120119]

Regrename can fail in some case and `insn_rr[INSN_UID (insn)].op_info`
will be null. The FMA steering code was not expecting the failure to happen.
This started to happen after early RA was added but it has been a latent bug
before that.

Build and tested for aarch64-linux-gnu.

	PR target/120119

gcc/ChangeLog:

	* config/aarch64/cortex-a57-fma-steering.cc (func_fma_steering::analyze):
	Skip if renaming fails.

gcc/testsuite/ChangeLog:

	* g++.dg/torture/pr120119-1.C: New test.

Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>
(cherry picked from commit 66c879571ab1fbdb4b119b8b0a1a30ebc7160057)