// Copyright 2014 The Emscripten Authors. All rights reserved.

// Emscripten is available under two separate licenses, the MIT license and the

// University of Illinois/NCSA Open Source License. Both these licenses can be

// found in the LICENSE file.

#include <stdio.h>

#include <stdlib.h>

#include <stdint.h>

#include <emscripten.h>

void recurse(unsigned long x);

void act(volatile unsigned long *a) {

printf("act %ld\n", *a);

unsigned long b = (long)(intptr_t)(alloca(*a));

if (b < *a) *a--;

recurse(*a);

}

void recurse(volatile unsigned long x) {

printf("recurse %ld\n", x);

volatile unsigned long a = x;

volatile char buffer[1000*1000];

buffer[x/2] = 0;

buffer[(x-1)/2] = 0;

EM_ASM({});

if (x*x < x) {

act(&a);

if (a < x) x = a;

x--;

}

x += buffer[x/2];

if (x > 0) recurse(x-1);

}

int main() {

recurse(1000*1000);

}