Unverified Commit f229ba4e authored by Phoebe Wang's avatar Phoebe Wang Committed by GitHub
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[X86][AVX10] Permit AVX512 options/features used together with AVX10 (#71318)

This patch relaxes the driver logic to permit combinations between
AVX512 and AVX10 options and makes sure we have a unified behavior
between options and features combination.

Here are rules we are following when handle these combinations:
1. evex512 can only be used for avx512xxx options/features. It will be
ignored if used without them;
2. avx512xxx and avx10.xxx are options in two worlds. Avoid to use them
together in any case. It will enable a common super set when they are
used together. E.g., "-mavx512f -mavx10.1-256" euqals "-mavx10.1-512".

Compiler emits warnings when user using combinations like "-mavx512f
-mavx10.1-256" in case they won't get unexpected result silently.

Function target feature attribute follows the same rule now. We have to
add "no-evex512" feature for intrinsics shared between AVX512 and AVX10.
We also add "no-evex512" for early ISAs like AVX etc., because some of
them are called by AVX512 intrinsics.
parent 6343ee72
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