Files
dolphin/Source/Core/Core
Sintendo fa13457abb JitArm64_Integer: subfex - Optimize InHostCarry case for -1
The result is either -1 or 0 depending on the state of the carry flag.
This can be done with a csetm instruction.

Before:
0x1280001a   mov    w26, #-0x1                ; =-1
0x1a1f035a   adc    w26, w26, wzr

After:
0x5a9f23fa   csetm  w26, lo
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