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The asm interpreter already inlines ECMAScript calls, but builtin calls still went through the generic C++ Call slow path even when the callee was a plain native function pointer. That added an avoidable boundary around hot builtin calls and kept asm from taking full advantage of the new RawNativeFunction representation. Teach the asm Call handler to recognize RawNativeFunction, allocate the callee frame on the interpreter stack, copy the call-site arguments, and jump straight to the stored C++ entry point. NativeJavaScriptBackedFunction and other non-raw callees keep falling through to the existing C++ slow path unchanged. |
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