mbox series

[v2,0/3] aarch64: Add initial support for +fp8 arch extensions

Message ID 20240725142548.699792-1-claudio.bantaloukas@arm.com
Headers show
Series aarch64: Add initial support for +fp8 arch extensions | expand

Message

Claudio Bantaloukas July 25, 2024, 2:25 p.m. UTC 
This series introduces initial flags and functionality for the fp8 feature.

Specifically, the following are added:
- functions that enable constructing valid fpm register values.
- support for the '+fp8' -march modifier.
- support for reading and writing the new system register FPMR (Floating Point Mode
  Register) which configures the new FP8 features

Tested against aarch64-unknown-linux-gnu.

V1 of this patch series had "aarch64: Add march flags for +fp8 arch extensions" as
cover letter title. Since then, changes in V2 are:

aarch64: Add march flags for +fp8 arch extensions
- Removed __ARM_FEATURE_FP8 define: will be added once the relevant features are in.
- Some unnecessary whitespace changes were removed.
- Helper function names now begin with __arm.

aarch64: Add support for moving fpm system register
- Removed a misleading comment.
- Removed unnecessary modifier in .md

aarch64: Add fpm register helper functions.
- Helper functions and fpm_t types are available unconditionally when including arm_acle.h

Is this ok for master? I do not have merge permissions. Can someone merge this for me please?

Thanks,
Claudio Bantaloukas


Claudio Bantaloukas (3):
  aarch64: Add march flags for +fp8 arch extensions
  aarch64: Add support for moving fpm system register
  aarch64: Add fpm register helper functions.

 .../aarch64/aarch64-option-extensions.def     |   2 +
 gcc/config/aarch64/aarch64.cc                 |   8 ++
 gcc/config/aarch64/aarch64.h                  |  17 ++-
 gcc/config/aarch64/aarch64.md                 |  30 +++--
 gcc/config/aarch64/arm_acle.h                 |  33 +++++
 gcc/config/aarch64/constraints.md             |   3 +
 gcc/doc/invoke.texi                           |   2 +
 .../gcc.target/aarch64/acle/fp8-helpers.c     |  52 ++++++++
 gcc/testsuite/gcc.target/aarch64/acle/fp8.c   | 124 ++++++++++++++++++
 9 files changed, 257 insertions(+), 14 deletions(-)
 create mode 100644 gcc/testsuite/gcc.target/aarch64/acle/fp8-helpers.c
 create mode 100644 gcc/testsuite/gcc.target/aarch64/acle/fp8.c