mbox series

[0/3] aarch64: Add march flags for +fp8 arch extensions

Message ID 20240722093011.3115878-1-claudio.bantaloukas@arm.com
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Series aarch64: Add march flags for +fp8 arch extensions | expand

Message

Claudio Bantaloukas July 22, 2024, 9:30 a.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 that defines the __ARM_FEATURE_FP8 macro to 1.
- 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.

Due to the addition of new flags, this patch is based on and requires that the series
"[PATCH v2 00/11] aarch64: Extend aarch64_feature_flags to 128 bits" be applied.

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.

 gcc/config/aarch64/aarch64-c.cc               |   1 +
 .../aarch64/aarch64-option-extensions.def     |   2 +
 gcc/config/aarch64/aarch64.cc                 |   9 ++
 gcc/config/aarch64/aarch64.h                  |  17 ++-
 gcc/config/aarch64/aarch64.md                 |  30 +++--
 gcc/config/aarch64/arm_acle.h                 |  37 ++++++
 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   | 120 ++++++++++++++++++
 10 files changed, 259 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