Hi Richard,

> On 7 May 2025, at 18:15, Richard Earnshaw <rearn...@arm.com> wrote:
> 
> 
> The header file for the Arm implementation of mmintrin.h was changed in GCC-15
> to disable access to the intrinsics.  This patch removes the internal code
> as well.
> 
> We still allow -mcpu/-march options for the wmmx cpus, but they are now 
> treated
> in exactly the same way as XScale - generating code for an Armv5te 
> architecture.
> 

Great to see this cleanup.

> Richard Earnshaw (13):
>  arm: clarify the logic of SECONDARY_(INPUT/OUTPUT)_RELOAD_CLASS
>  arm: testsuite: remove iwmmxt tests
>  arm: treat -mcpu/arch=iwmmxt{,2} like XScale
>  arm: remove iWMMX builtins support.
>  arm: Remove iwmmxt patterns.
>  arm: remove IWMMXT checks from MD files.
>  arm: remove support for the iwmmxt ABI variant.
>  arm: Remove iwmmxt support from arm.cc
>  arm: remove iwmmxt-related attributes from machine description
>  arm: cleanup iterators.md after removing iwmmxt
>  arm: remove dead predefines when using WMMX
>  arm: remove most remaining iwmmxt code.
>  arm: remove iwmmxt registers from allocator tables

There’s a few references to iWMMXT remaining in doc/ referring to builtins and 
constraints that need to be cleaned up.
Thanks,
Kyrill

> 
> gcc/config.gcc                         |    2 +-
> gcc/config/arm/aout.h                  |    5 -
> gcc/config/arm/arm-builtins.cc         | 1276 +----------------
> gcc/config/arm/arm-c.cc                |    7 -
> gcc/config/arm/arm-cpus.in             |   28 +-
> gcc/config/arm/arm-generic.md          |    4 +-
> gcc/config/arm/arm-opts.h              |    1 -
> gcc/config/arm/arm-protos.h            |    8 -
> gcc/config/arm/arm-tables.opt          |    6 -
> gcc/config/arm/arm-tune.md             |   53 +-
> gcc/config/arm/arm.cc                  |  401 +-----
> gcc/config/arm/arm.h                   |  169 +--
> gcc/config/arm/arm.md                  |   43 +-
> gcc/config/arm/arm.opt                 |    3 -
> gcc/config/arm/constraints.md          |   18 +-
> gcc/config/arm/iterators.md            |   20 +-
> gcc/config/arm/iwmmxt.md               | 1766 ------------------------
> gcc/config/arm/iwmmxt2.md              |  903 ------------
> gcc/config/arm/marvell-f-iwmmxt.md     |  189 ---
> gcc/config/arm/predicates.md           |    8 +-
> gcc/config/arm/t-arm                   |    3 -
> gcc/config/arm/thumb2.md               |    2 +-
> gcc/config/arm/types.md                |  123 --
> gcc/config/arm/unspecs.md              |   29 -
> gcc/config/arm/vec-common.md           |   31 +-
> gcc/doc/invoke.texi                    |    2 +-
> gcc/doc/sourcebuild.texi               |    4 -
> gcc/testsuite/gcc.target/arm/ivopts.c  |    3 +-
> gcc/testsuite/gcc.target/arm/mmx-1.c   |   26 -
> gcc/testsuite/gcc.target/arm/mmx-2.c   |  166 ---
> gcc/testsuite/gcc.target/arm/pr64208.c |   25 -
> gcc/testsuite/gcc.target/arm/pr79145.c |   16 -
> gcc/testsuite/gcc.target/arm/pr99724.c |   31 -
> gcc/testsuite/gcc.target/arm/pr99786.c |   30 -
> gcc/testsuite/lib/target-supports.exp  |   13 -
> 35 files changed, 141 insertions(+), 5273 deletions(-)
> delete mode 100644 gcc/config/arm/iwmmxt.md
> delete mode 100644 gcc/config/arm/iwmmxt2.md
> delete mode 100644 gcc/config/arm/marvell-f-iwmmxt.md
> delete mode 100644 gcc/testsuite/gcc.target/arm/mmx-1.c
> delete mode 100644 gcc/testsuite/gcc.target/arm/mmx-2.c
> delete mode 100644 gcc/testsuite/gcc.target/arm/pr64208.c
> delete mode 100644 gcc/testsuite/gcc.target/arm/pr79145.c
> delete mode 100644 gcc/testsuite/gcc.target/arm/pr99724.c
> delete mode 100644 gcc/testsuite/gcc.target/arm/pr99786.c
> 
> -- 
> 2.43.0
> 

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