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// PR rtl-optimization/69570
// { dg-do run }
// { dg-options "-O2" }
// { dg-additional-options "-fpic" { target fpic } }
// { dg-additional-options "-march=i686" { target ia32 } }
template <typename T> inline const T &
min (const T &a, const T &b)
{
if (b < a)
return b;
return a;
}
template <typename T> inline const T &
max (const T &a, const T &b)
{
if (a < b)
return b;
return a;
}
static inline void
foo (unsigned x, unsigned y, unsigned z, double &h, double &s, double &l)
{
double r = x / 255.0;
double g = y / 255.0;
double b = z / 255.0;
double m = max (r, max (g, b));
double n = min (r, min (g, b));
double d = m - n;
double e = m + n;
h = 0.0, s = 0.0, l = e / 2.0;
if (d > 0.0)
{
s = l > 0.5 ? d / (2.0 - e) : d / e;
if (m == r && m != g)
h = (g - b) / d + (g < b ? 6.0 : 0.0);
if (m == g && m != b)
h = (b - r) / d + 2.0;
if (m == b && m != r)
h = (r - g) / d + 4.0;
h /= 6.0;
}
}
__attribute__ ((noinline, noclone))
void bar (unsigned x[3], double y[3])
{
double h, s, l;
foo (x[0], x[1], x[2], h, s, l);
y[0] = h;
y[1] = s;
y[2] = l;
}
int
main ()
{
unsigned x[3] = { 0, 128, 0 };
double y[3];
bar (x, y);
if (__builtin_fabs (y[0] - 0.33333) > 0.001
|| __builtin_fabs (y[1] - 1) > 0.001
|| __builtin_fabs (y[2] - 0.25098) > 0.001)
__builtin_abort ();
return 0;
}
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