Change #254126

Comments

configure: Check for the AArch64 CRC extension
Name the feature "arm_crc" rather than plain "crc", to make it
clear that this is about a CPU feature extension, not CRC
implementations in general.

This requires dealing with the extension slightly differently
than other extensions, as the name of the feature and the
".arch_extension" extension name differ.

Naming it with an "arm" prefix rather than "aarch64", as the
CPU extension also is available in 32 bit ARM form, even though
we don't intend to use it there.

Changed files

• configure
• libavutil/aarch64/asm.S