[Bug rtl-optimization/116234] [15 Regression] '-fcompare-debug' failure w/ `-mcpu=phecda -O2 -funroll-all-loops -fno-ivopts` since r15-1619-g3b9b8d6cfdf593

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116234

--- Comment #12 from GCC 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:decc6c0d4d909ce510b6533c48d70d0b353f909a

commit r15-7305-gdecc6c0d4d909ce510b6533c48d70d0b353f909a
Author: Vladimir N. Makarov <vmaka...@redhat.com>
Date:   Fri Jan 31 09:39:45 2025 -0500

    [PR116234][LRA]: Check debug insn when looking at one insn pseudo
occurrence

      LRA can change reg class to NO_REGS when pseudo referred in one
    insn.  Checking the references did not take into account that referring
    insn can be a debug insn.  This resulted in different code generation
    with and without debug info generation.  The patch fixes this pitfall.

    gcc/ChangeLog:

            PR rtl-optimization/116234
            * lra-constraints.cc (multiple_insn_refs_p): New function.
            (curr_insn_transform): Use it.

    gcc/testsuite/ChangeLog:

            PR rtl-optimization/116234
            * gfortran.target/aarch64/aarch64.exp: New.
            * gfortran.target/aarch64/pr116234.f: New.