[Bug target/103383] Microblaze bswaphi2 can cause issues with delay slots

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103383

--- Comment #19 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-15 branch has been updated by Michael Eager
<eager@gcc.gnu.org>:

https://gcc.gnu.org/g:474bce3d2ddb6417e7acad84bbad7524018de4e4

commit r15-11175-g474bce3d2ddb6417e7acad84bbad7524018de4e4
Author: Gopi Kumar Bulusu <gopi@sankhya.com>
Date:   Thu Apr 2 12:02:59 2026 +0530

    Fix incorrect length for __builtin_bswap16

    The bswaphi pattern generates 2 assembly instructions with a length
    of 8 bytes. The bswaphi pattern missed the length attribute, as a
    result the default of 8 bytes was assumed. This allowed the "8 byte"
    bswaphi pattern to be scheduled into the delay slot of a branch
    instruction where only a 4 byte instruction can be placed. This
    patch addresses the problem.

    Add trunk commit to release/gcc-15 branch.

    2026-05-16  Michael Eager <eager@eagercon.com>

    gcc/ChangeLog:
            PR target/103383
            * config/microblaze/microblaze.md: bswaphi2: (set_attr length 8)

    gcc/testsuite/ChangeLog:
            PR target/103383
            * gcc.target/microblaze/isa/pr103383.c: New test.

    Signed-off-by: Nagaraju Mekala <nmekala@xilix.com>
    Signed-off-by: Gopi Kumar Bulusu <gopi@sankhya.com>
    Signed-off-by: Michael J. Eager <eager@eagercon.com>