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4  *    Stack-less Just-In-Time compiler
188 /*  Stack                                                                   */
251 	struct sljit_stack *stack;
280 	stack = (struct sljit_stack*)SLJIT_MALLOC(sizeof(struct sljit_stack), allocator_data);
281 	if (!stack)
290 		SLJIT_FREE(stack, allocator_data);
293 	stack->max_limit = (sljit_u8 *)ptr;
294 	stack->base = stack->max_limit + max_limit;
295 	stack->limit = stack->base;
296 	if (sljit_stack_resize(stack, stack->base - limit)) {
297 		sljit_free_stack(stack, allocator_data);
303 		SLJIT_FREE(stack, allocator_data);
306 	stack->max_limit = (sljit_u8 *)ptr;
307 	stack->base = stack->max_limit + max_limit;
308 	stack->limit = stack->base - limit;
315 			SLJIT_FREE(stack, allocator_data);
322 		SLJIT_FREE(stack, allocator_data);
325 	stack->max_limit = (sljit_u8 *)ptr;
326 	stack->base = stack->max_limit + max_limit;
327 	stack->limit = stack->base - limit;
329 	stack->top = stack->base;
330 	return stack;
335 SLJIT_API_FUNC_ATTRIBUTE void SLJIT_CALL sljit_free_stack(struct sljit_stack *stack, void *allocator_data)
339 	VirtualFree((void*)stack->max_limit, 0, MEM_RELEASE);
341 	uvm_km_free(kernel_map, (vaddr_t)stack->max_limit,
342 	    stack->base - stack->max_limit, UVM_KMF_WIRED);
344 	munmap((void*)stack->max_limit, stack->base - stack->max_limit);
346 	SLJIT_FREE(stack, allocator_data);
349 SLJIT_API_FUNC_ATTRIBUTE sljit_sw SLJIT_CALL sljit_stack_resize(struct sljit_stack *stack, sljit_u8 *new_limit)
356 	if ((new_limit < stack->max_limit) || (new_limit >= stack->base))
360 	aligned_old_limit = ((sljit_uw)stack->limit) & ~sljit_page_align;
371 	stack->limit = new_limit;
374 	if (new_limit <= stack->limit) {
375 		stack->limit = new_limit;
380 	aligned_old_limit = ((sljit_uw)stack->limit) & ~sljit_page_align;
390 	stack->limit = new_limit;