JosJuice 9716148203 Arm64Emitter: Replace shifting size by 4 with IntLog2 minus 3 ...

The instruction implementations that were shifting the size by 4 would
emit an incorrect instruction when given a size of 64. The correct
implementation is to count the number of leading or trailing zeroes in
the size parameter, which is what IntLog2 does.

No callers are affected by this, as they all use sizes other than 64.
Actually, some of these instructions are even invalid with a size of 64,
but I'm changing them anyway for consistency with the others.

2025-08-24 10:48:21 +02:00

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