[Bug target/114097] Missed register optimization in _Noreturn functions

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114097

--- Comment #6 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@gcc.gnu.org>:

https://gcc.gnu.org/g:bb98f71bac8aace4e685e648a81dfaf365123833

commit r14-9178-gbb98f71bac8aace4e685e648a81dfaf365123833
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Sun Feb 25 13:14:39 2024 -0800

    x86: Check interrupt instead of noreturn attribute

    ix86_set_func_type checks noreturn attribute to avoid incompatible
    attribute error in LTO1 on interrupt functions.  Since TREE_THIS_VOLATILE
    is set also for _Noreturn without noreturn attribute, check interrupt
    attribute for interrupt functions instead.

    gcc/

            PR target/114097
            * config/i386/i386-options.cc (ix86_set_func_type): Check
            interrupt instead of noreturn attribute.

    gcc/testsuite/

            PR target/114097
            * gcc.target/i386/pr114097-1.c: New test.