[Bug middle-end/112697] [14 Regression] 30-40% exec time regression of 433.milc on zen2 since r14-4972-g8aa47713701b1f

[amonakov at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112697

--- Comment #9 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
... as does inserting a nop before the compare ¯\_(ツ)_/¯


--- d.out.ltrans0.ltrans.slow.s 2023-12-01 18:32:54.255841611 +0300
+++ d.out.ltrans0.ltrans.s      2023-12-01 18:53:04.909438690 +0300
@@ -743,6 +743,7 @@ add_force_to_mom:
        .p2align 4,,10
        .p2align 3
 .L58:
+       nop
        cmpb    $1, -680(%r11,%r12)
        movapd  %xmm5, %xmm7
        jne     .L54