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/* PR tree-optimization/79327 - wrong code at -O2 and -fprintf-return-value
{ dg-do run }
{ dg-options "-O2 -Wall" } */
volatile int a, b = -1;
char buf[64];
#define FMT "%+03d%02d"
const char *volatile fmt = FMT;
int main ()
{
int c = a;
int d = b;
if (c >= -35791395 && c < 35791394 && d >= -1 && d < __INT_MAX__)
{
/* In the following the range of return values can be computed
by GCC. */
int n1 = __builtin_sprintf (buf, FMT, c + 1, d + 1);
if (n1 > 7)
__builtin_abort ();
/* Here GCC can't see the format string so the return value
must be computed by a libc call. */
int n2 = __builtin_sprintf (buf, fmt, c + 1, d + 1);
if (n1 != n2)
__builtin_abort ();
}
return 0;
}
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