Alexandros Lamprineas 1b82c16fa8 [FMV][AArch64] Allow user to override version priority. (#150267) ...

Implements https://github.com/ARM-software/acle/pull/404

This allows the user to specify "featA+featB;priority=[1-255]" where
priority=255 means highest priority. If the explicit priority string is
omitted then the priority of "featA+featB" is implied, which is lower
than priority=1.

Internally this gets expanded using special FMV features P0 ... P7 which
can encode up to 256-1 priority levels (excluding all zeros). Those do
not have corresponding detection bit at pos FEAT_#enum so I made this
field optional in FMVInfo. Also they don't affect the codegen or name
mangling of versioned functions.

2025-12-09 13:31:10 +00:00

13 KiB

Raw Permalink Blame History

View Raw