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d32cfe3352
The ACLE asks the user to test for __ARM_FEATURE_BF16 before using the
<arm_bf16.h> header but GCC doesn't set this up.
LLVM does, so this is an inconsistency between the compilers.
This patch enables that macro for TARGET_BF16_FP.
Bootstrapped and tested on aarch64-none-linux-gnu.
gcc/
PR target/115457
* config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
Define __ARM_FEATURE_BF16 for TARGET_BF16_FP.
gcc/testsuite/
PR target/115457
* gcc.target/aarch64/acle/bf16_feature.c: New test.
Signed-off-by: Kyrylo Tkachov <ktkachov@nvidia.com>
(cherry picked from commit c10942134f)
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