[PATCH 2/2] aarch64: PR target/115475 Implement missing __ARM_FEATURE_SVE_BF16 macro

Wed, 03 Jul 2024 03:00:04 -0700 

Hi all,

The ACLE requires __ARM_FEATURE_SVE_BF16 to be enabled when SVE and BF16
and the associated intrinsics are available.
GCC does support the required intrinsics for TARGET_SVE_BF16 so define
this macro too.

Bootstrapped and tested on aarch64-none-linux-gnu.
Pushing to trunk.
I think it makes sense to back port this to branches that support the SVE BF16 
intrinsics.
I’ll prepare patches for those separately.

Thanks,
Kyrill

gcc/

        PR target/115475
        * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
        Define __ARM_FEATURE_SVE_BF16 for TARGET_SVE_BF16.

gcc/testsuite/

        PR target/115475
        * gcc.target/aarch64/acle/bf16_sve_feature.c: New test.

Signed-off-by: Kyrylo Tkachov <ktkac...@nvidia.com>

Attachment: 0002-aarch64-PR-target-115475-Implement-missing-__ARM_FEA.patch
Description: 0002-aarch64-PR-target-115475-Implement-missing-__ARM_FEA.patch

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