JitArm64: boolX constant optimizations #11096
Merged
+92
−0
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A (partial) port of #9481 to ARM64. This commit adds special cases for immediate values equal to 0 or 0xFFFFFFFF, allowing for more efficient or no code to be generated.
The 'after' examples showcase the generated code after applying both this PR and #11094.
and
Special case 0
Before:
After:
Nothing, register is set to constant zero.
Special case 0xFFFFFFFF
Before:
After:
or
Special case 0 (a != j)
Before:
After:
Special case 0 (a == j)
Before:
After:
Nothing.
xor
Special case 0 (a != j)
Before:
After:
Special case 0 (a == j)
Before:
After:
Nothing.