[Bug rtl-optimization/104447] [9/10/11/12 Regression] ICE: maximum number of LRA assignment passes is achieved (30)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104447

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

https://gcc.gnu.org/g:db69f666a728ce800a840115829f6b64bc3174d2

commit r12-7278-gdb69f666a728ce800a840115829f6b64bc3174d2
Author: Vladimir N. Makarov <vmaka...@redhat.com>
Date:   Thu Feb 17 11:31:50 2022 -0500

    [PR104447] LRA: Do not split non-alloc hard regs.

    LRA tried to split non-allocated hard reg for reload pseudos again and
    again until number of assignment passes reaches the limit.  The patch fixes
    this.

    gcc/ChangeLog:

            PR rtl-optimization/104447
            * lra-constraints.cc (spill_hard_reg_in_range): Initiate ignore
            hard reg set by lra_no_alloc_regs.

    gcc/testsuite/ChangeLog:

            PR rtl-optimization/104447
            * gcc.target/i386/pr104447.c: New.