[Bug rtl-optimization/115013] [15 Regression] LRA: PR114810 fix result in ICE in the RISC-V Vector

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115013

--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Vladimir Makarov <vmakarov@gcc.gnu.org>:

https://gcc.gnu.org/g:44e7855e4e817a7f5a1e332cd95e780e57052dba

commit r15-436-g44e7855e4e817a7f5a1e332cd95e780e57052dba
Author: Vladimir N. Makarov <vmakarov@redhat.com>
Date:   Mon May 13 10:12:11 2024 -0400

    [PR115013][LRA]: Modify register starvation recognition

      My recent patch to recognize reg starvation resulted in few GCC test
    failures.  The following patch fixes this by using more accurate
    starvation calculation and ignoring small reg classes.

    gcc/ChangeLog:

            PR rtl-optimization/115013
            * lra-constraints.cc (process_alt_operands): Update all_used_nregs
            only for winreg.  Ignore reg starvation for small reg classes.