Add tests for stack alloc

ncc/tests/stack_alloc.c

@@ -1,4 +1,39 @@
 #include <assert.h>
+#include <string.h>
+
+void big_alloc()
+{
+    int arr[2048];
+    //memset(arr, 777, 2048);
+    arr[0] = 333;
+    arr[2047] = 1337;
+}
+
+void multi_alloc()
+{
+    int arr_a[8];
+    arr_a[0] = 1;
+    arr_a[7] = 1;
+
+    int arr_b[8];
+    arr_b[0] = 2;
+    arr_b[7] = 2;
+
+    if (1)
+    {
+        int arr_c[8];
+        arr_c[0] = 3;
+        arr_c[7] = 3;
+    }
+
+    // Make sure this doesn't corrupt our allocs
+    big_alloc();
+
+    assert(arr_a[0] == 1);
+    assert(arr_a[7] == 1);
+    assert(arr_b[0] == 2);
+    assert(arr_b[7] == 2);
+}
 
 int main()
 {
@@ -10,11 +45,24 @@ int main()
     assert(arr[1] == 2);
     assert(arr[2] == 3);
 
+    // Make sure that a big alloc doesn't trigger a stack overflow
+    for (int i = 0; i < 2048; ++i)
+    {
+        big_alloc();
+    }
+
+    multi_alloc();
 
 
 
 
 
+    // Make sure that a big alloc doesn't trigger a stack overflow
+    for (int i = 0; i < 2048; ++i)
+    {
+        big_alloc();
+        multi_alloc();
+    }
 
     return 0;
 }