Jan Philipp Hafer efdb94486b compiler_rt: add __bswapsi2, __bswapdi2 and __bswapti2
- each byte gets masked, shifted and combined
- use boring masks instead of comptime for readability
- tests: bit patterns with reverse operation, if applicable

See #1290
2021-12-11 01:43:37 -08:00
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2021-12-09 01:39:07 -07:00