Viewing file:  sat-ur-plus-minus.c (2.25 KB) -rw-r--r--
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/* { dg-do run { target { ! avr_tiny } } } */
/* { dg-options "-std=gnu99 -fwrapv" } */
#include "fix-types.h"
extern void abort (void);
extern void exit (int);
typedef unsigned _Fract fx_t;
typedef unsigned _Sat _Fract satfx_t;
typedef unsigned int intfx_t;
US_LFUN (us_add, +, fx_t, ur, >)
US_LFUN (us_sub, -, fx_t, ur, <)
#define VAL(N, X) \
__attribute__((noinline,noclone)) \
satfx_t us_add2_##N (satfx_t a) \
{ \
return us_add_ur (a, X##P##-##16ur); \
} \
__attribute__((noinline,noclone)) \
satfx_t us_add_##N (satfx_t a) \
{ \
return a + X##P##-##16ur; \
} \
__attribute__((noinline,noclone)) \
satfx_t us_sub2_##N (satfx_t a) \
{ \
return us_sub_ur (a, X##P##-##16ur); \
} \
__attribute__((noinline,noclone)) \
satfx_t us_sub_##N (satfx_t a) \
{ \
return a - X##P##-##16ur; \
}
#include "vals-ur.def"
#undef VAL
satfx_t (* __flash const fun[])(satfx_t) =
{
#define VAL(N, X) \
us_add_##N, us_add2_##N, \
us_sub_##N, us_sub2_##N,
#include "vals-ur.def"
#undef VAL
};
const volatile __flash intfx_t vals[] =
{
0, -1, 1, -2, 2, -127, -128, -129,
0x7f, 0x80, 0x81, 0x100,
0x4000, 0x3e80, 0x3f80,
0x7ffe, 0x7fff,
0x7f7f, 0x7f81, 0x7f80,
0x7f01,
0x8000, 0x8001, 0x8080,
0x8081, 0x80ff, 0x80fe,
0x8100, 0x8180, 0x817f,
0xff00, 0xff01, 0xff01,
0xff7f, 0xff80
};
int main (void)
{
for (unsigned int i = 0; i < sizeof (vals) / sizeof (*vals); i++)
{
satfx_t a, f1, f2;
intfx_t val = vals[i];
__builtin_memcpy (&a, &val, sizeof (satfx_t));
for (unsigned int f = 0; f < sizeof (fun) / sizeof (*fun); f += 2)
{
if (fun[f](a) != fun[f+1](a))
abort();
}
}
exit (0);
return 0;
}
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