https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112697
Jeffrey A. Law changed:
What|Removed |Added
Resolution|--- |FIXED
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112697
Filip Kastl changed:
What|Removed |Added
Keywords|needs-bisection |
--- Comment #10 from Filip Kastl ---
I
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112697
Jeffrey A. Law changed:
What|Removed |Added
Priority|P3 |P2
CC|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112697
--- Comment #9 from Alexander Monakov ---
... 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
@@
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112697
--- Comment #8 from Alexander Monakov ---
Thanks, I can reproduce it. It is pretty tricky though. For instance, just
swapping the mov and the compare is enough to make it fast:
--- d.out.ltrans0.ltrans.slow.s 2023-12-01 18:32:54.255841611
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112697
--- Comment #7 from Martin Jambor ---
Created attachment 56720
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56720=edit
Perf annotate of milc built with r14-4972-g8aa47713701b1f
commit r14-4972-g8aa47713701b1f:
$ perf stat taskset -c 0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112697
--- Comment #6 from Martin Jambor ---
Created attachment 56719
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56719=edit
Perf annotate of milc built with r14-4971-g0beb1611754742
commit r14-4971-g0beb1611754742:
$ perf stat taskset -c 0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112697
Alexander Monakov changed:
What|Removed |Added
CC||amonakov at gcc dot gnu.org
---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112697
Sam James changed:
What|Removed |Added
Summary|[14 Regression] 30-40% exec |[14 Regression] 30-40% exec
