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[v2,00/11] aarch64: Extend aarch64_feature_flags to 128 bits

Message ID a6649ad5-0456-282f-b280-4f2de5493a6d@e124511.cambridge.arm.com
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Series aarch64: Extend aarch64_feature_flags to 128 bits | expand

Message

Andrew Carlotti July 11, 2024, 12:10 p.m. UTC 
The end goal of the series is to change the definition of aarch64_feature_flags
from a uint64_t typedef to a class with 128 bits of storage.  This class is a
new template bitmap type that uses operator overloading to mimic the existing
integer interface as much as possible.

The changes are mostly in the backend, but patch 10/11 introduces this new
bitmap type in the middle end.

Compared to the previous version:
Patches 01-03 are the previous patches 01, 02 and 05.
Patch 04 is a rebased version of the previous 06.
Patch 05-06 are the previous 07-08.
Patches 07 and 09 are a couple of hunks from the old 03/04.
Patch 08 redefines the TARGET_* macros in the manner suggested by Richard S.
Patch 10 intoduces the new templated bbitmap type.
Patch 11 is a replacement for the old 12, using the new type from patch 10.

This is bootstrapped and regression tested on aarch64.  Is it ok for master?