[Bug target/114734] [11/12 regression] RISC-V rv64gcv_zvl256b miscompile with -flto -O3 -mrvv-vector-bits=zvl since r8-6047-g65dd1346027bb5

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114734

--- Comment #21 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Richard Biener
<rgue...@gcc.gnu.org>:

https://gcc.gnu.org/g:46b2e98983ebc62440c43217f2b3bbe72f8b0191

commit r12-10447-g46b2e98983ebc62440c43217f2b3bbe72f8b0191
Author: Richard Biener <rguent...@suse.de>
Date:   Fri Apr 26 15:47:13 2024 +0200

    middle-end/114734 - wrong code with expand_call_mem_ref

    When expand_call_mem_ref looks at the definition of the address
    argument to eventually expand a &TARGET_MEM_REF argument together
    with a masked load it fails to honor constraints imposed by SSA
    coalescing decisions.  The following fixes this.

            PR middle-end/114734
            * internal-fn.cc (expand_call_mem_ref): Use
            get_gimple_for_ssa_name to get at the def stmt of the address
            argument to honor SSA coalescing constraints.

    (cherry picked from commit 20ebcaf826c91ddaf2aac35417ec1e5e6d31ad50)