dist/gcc/reg-stack.c

2909   stack_ptr target_stack = &BLOCK_INFO (target)->stack_in;
2917   gcc_assert (target_stack->top != -2);
2920   if (target_stack->top == source_stack->top)
2922       for (reg = target_stack->top; reg >= 0; --reg)
2923 	if (target_stack->reg[reg] != source_stack->reg[reg])
2937       print_stack (dump_file, target_stack);
2949       gcc_assert (target_stack->top == -1);
2958       gcc_assert (target_stack->top == -1);
2977       change_stack (BB_END (source), &regstack, target_stack,
2991       change_stack (after, &regstack, target_stack, EMIT_BEFORE);