[PATCH 0/1] MR10536: vbscript: Fast-path stack_pop_bool for VT_BOOL.

[Francis De Brabandere (＠francisdb)]

Skip the expensive VariantChangeType call in stack_pop_bool when the
variant is already VT_BOOL, which is the common case after comparison
operators (OP_gt, OP_lt, OP_equal, etc.). Every If, ElseIf, While,
and Do-While condition goes through jmp_false/jmp_true which calls
stack_pop_bool, so this eliminates a redundant VT_BOOL-to-VT_BOOL
conversion on every branch.

This closed the If-condition gap from 1.5–2.1× slower than Windows down to 1.0–1.7× slower, with pure boolean tests reaching parity.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/10536