Andreas Kling c301a21960 LibJS: Skip preserving zero-argument call callees ...

The callee and this-value preservation copies only matter while later
argument expressions are still being evaluated. For zero-argument calls
there is nothing left to clobber them, so we can keep the original
operand and let the interpreter load it directly.

This removes the hot Mov arg0->reg pattern from zero-argument local
calls and reduces register pressure.

2026-04-13 18:29:43 +02:00

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