gcc/testsuite/gcc.c-torture/execute/pr84169.c


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/* PR rtl-optimization/84169 */

#ifdef __SIZEOF_INT128__
typedef unsigned __int128 T;
#else
typedef unsigned long long T;
#endif

T b;

static __attribute__ ((noipa)) T
foo (T c, T d, T e, T f, T g, T h)
{
  __builtin_mul_overflow ((unsigned char) h, -16, &h);
  return b + h;
}

int
main ()
{
  T x = foo (0, 0, 0, 0, 0, 4);
  if (x != -64)
    __builtin_abort ();
  return 0;
}