XOR allows for a more compact representation for constants that can be
represented by a signed 8-bit integer, while MOV does not. By letting
MOV handle the larger constants we can occasionally save a byte.
Before:
44 89 F7 mov edi,r14d
81 F7 A0 52 57 01 xor edi,15752A0h
After:
BF A0 52 57 01 mov edi,15752A0h
41 33 FE xor edi,r14d
Sintendo
845d7cd51f