Hi Suwa-san,
On Sat, Sep 12, 2026 at 1:12 PM Takayuki 'January June' Suwa
<[email protected]> wrote:
>
> Cosmetics for readability. Thus no functional changes.
But it introduces a regression in gcc.target/xtensa/elim_callee_saved.c,
so there's definitely a functional change.
> gcc/ChangeLog:
>
> * config/xtensa/xtensa.cc (xtensa_adjust_reg_alloc_order):
> Reformat the "reg_call0_alloc_order" array.
> * config/xtensa/xtensa.h (REG_ALLOC_ORDER): Reformat.
> ---
> gcc/config/xtensa/xtensa.cc | 6 ++----
> gcc/config/xtensa/xtensa.h | 6 ++----
> 2 files changed, 4 insertions(+), 8 deletions(-)
>
> diff --git a/gcc/config/xtensa/xtensa.cc b/gcc/config/xtensa/xtensa.cc
> index b1daa0f0a99..af1e027f53d 100644
> --- a/gcc/config/xtensa/xtensa.cc
> +++ b/gcc/config/xtensa/xtensa.cc
> @@ -4471,11 +4471,9 @@ xtensa_adjust_reg_alloc_order (void)
> REG_ALLOC_ORDER;
> static const int reg_call0_alloc_order[FIRST_PSEUDO_REGISTER] =
> {
> - 9, 10, 11, 7, 6, 5, 4, 3, 2, 8, 0, 12, 13, 14, 15,
> - 18,
> + 11, 10, 9, 7, 6, 5, 4, 3, 2, 8, 0, 12, 13, 14, 15, 18,
> 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
> - 1, 16, 17,
> - 35,
> + 1, 16, 17, 35,
> };
>
> memcpy (reg_alloc_order, TARGET_WINDOWED_ABI ?
> diff --git a/gcc/config/xtensa/xtensa.h b/gcc/config/xtensa/xtensa.h
> index 5bf1645033c..4fab1e055a1 100644
> --- a/gcc/config/xtensa/xtensa.h
> +++ b/gcc/config/xtensa/xtensa.h
> @@ -249,11 +249,9 @@ along with GCC; see the file COPYING3. If not see
>
> #define REG_ALLOC_ORDER
> \
> { \
> - 8, 9, 10, 11, 12, 13, 14, 15, 7, 6, 5, 4, 3, 2, \
> - 18, \
> + 8, 9, 10, 11, 12, 13, 14, 15, 7, 6, 5, 4, 3, 2, 18, \
> 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, \
> - 0, 1, 16, 17, \
> - 35, \
> + 0, 1, 16, 17, 35, \
> }
> #define ADJUST_REG_ALLOC_ORDER xtensa_adjust_reg_alloc_order ()
>
> --
> 2.39.5
--
Thanks.
-- Max
