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// 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/emscripten.h>
#include <emscripten/stack.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 sp=%#lx\n", x, emscripten_stack_get_current());
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);
}
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