[Bug target/100182] [8/9/10/11/12 Regression] Miscompilation of atomic_float/1.cc and atomic_float/wait_notify.cc on i686

Tue Jul 20 04:30:27 GMT 2021

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100182

--- Comment #33 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Uros Bizjak <uros@gcc.gnu.org>:

https://gcc.gnu.org/g:f2060ae92f22e4877af21018cf3b8cc2eca4745e

commit r11-8783-gf2060ae92f22e4877af21018cf3b8cc2eca4745e
Author: Uros Bizjak <ubizjak@gmail.com>
Date:   Tue Jul 20 06:29:39 2021 +0200

    i386: Remove atomic_storedi_fpu and atomic_loaddi_fpu peepholes [PR100182]

    These patterns result in non-atomic sequence.

    2021-07-21  UroÅ¡ Bizjak  <ubizjak@gmail.com>

    gcc/
            PR target/100182
            * config/i386/sync.md (define_peephole2 atomic_storedi_fpu):
            Remove.
            (define_peephole2 atomic_loaddi_fpu): Ditto.

    gcc/testsuite/
            PR target/100182
            * gcc.target/i386/pr71245-1.c: Remove.
            * gcc.target/i386/pr71245-2.c: Ditto.