[issue1608] test_str.py crashes

[Ismail Donmez]

Ismail Donmez added the comment:

Following testcase doesn't print overflow with gcc 4.3 when compiled
with -O3, works with gcc 3.4.6 though.

#include <sys/types.h>
#include <stdio.h>

void foo(ssize_t x)
{
 if (x >= 0) {
   if (x+x < 0) printf("Overflow\n");
}
}

main()
{
  volatile ssize_t x =2147483647;
  foo(x);
}

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