SWDEV-548892 - Stop using ocml exp10 functions

[arsenm]

Follow exp and exp2. I only separated exp10 just in case it breaks a build somewhere, since the elementwise exp10 builtin is much more recent than the others.

[Copilot]

Pull request overview

This PR replaces __ocml_exp10 function calls with the newer __builtin_elementwise_exp10 builtin for half-precision (__half, __half2) and bfloat16 (__hip_bfloat16) types, following the pattern previously established for exp and exp2 functions.

Key Changes:

• Replaced __ocml_exp10_f16 with __builtin_elementwise_exp10 for __half type
• Replaced __ocml_exp10_2f16 with __builtin_elementwise_exp10 for __half2 type
• Replaced __ocml_exp10_f32 with __builtin_elementwise_exp10 for __hip_bfloat16 type

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
projects/clr/hipamd/include/hip/amd_detail/amd_hip_fp16.h	Updated hexp10 and h2exp10 functions to use builtin exp10 implementation
projects/clr/hipamd/include/hip/amd_detail/amd_hip_bf16.h	Updated hexp10 function for bfloat16 to use builtin exp10 implementation

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[fabiomestre]

Given that the __builtin implementation for exp10 functions with f16 types was wrong until very recently, doesn't this change have the potential to break accuracy tests when using a slightly older compiler?

Note that currently, some of the HIP tests for Float16 accuracy are disabled. So this PR will probably still pass CI.

[arsenm]

Given that the __builtin implementation for exp10 functions with f16 types was wrong until very recently, doesn't this change have the potential to break accuracy tests when using a slightly older compiler?

I would expect new headers to not work with old compilers in the general case. We don't properly version anything, so we can't detect any cases like this.

It's been over 3 months since the compiler patch now