[Bug tree-optimization/126729] [17 Regression] factor load does not handle scalar_storage_order correctly.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126729

--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Andrea Pinski <[email protected]>:

https://gcc.gnu.org/g:fbdabd5f9a27c80a19767918adaa1ee968cf4adf

commit r17-3169-gfbdabd5f9a27c80a19767918adaa1ee968cf4adf
Author: Andrea Pinski <[email protected]>
Date:   Sat Aug 8 11:03:55 2026 -0700

    gimplefe: Add support for REF_REVERSE_STORAGE_ORDER on mem

    While fixing PR 126729 and PR 126570, I found it was hard
    to figure out if REF_REVERSE_STORAGE_ORDER was set on a MEM_REF.
    Even for the gimple fe was able to set it.
    This adds support to the gimple fe and also outputs
    REF_REVERSE_STORAGE_ORDER for MEM_REF in gimple mode.

    Bootstrapped and tested on x84_64-linux-gnu.

    gcc/c/ChangeLog:

            * gimple-parser.cc (c_parser_gimple_postfix_expression):
            Allow for an optional `, 1/0` in front of the cb pair
            for MEM_REF.

    gcc/ChangeLog:

            * tree-pretty-print.cc (dump_mem_ref): Dump
REF_REVERSE_STORAGE_ORDER
            if it was set.

    gcc/testsuite/ChangeLog:

            * gcc.dg/gimplefe-59.c: New test.

    Signed-off-by: Andrea Pinski <[email protected]>