Viewing file:  fp2int1.c (3.51 KB) -rw-r--r--
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/* Test for the 32 bit fp to 64 bit int conversion routines.
On S/390 32 bit we use our own implementations in order to be IEEE
complaint as we are with our machine instructions. These missed to
throw FE_INVALID exceptions in a bunch of cases. */
/* { dg-do run { target s390-*-* } } */
/* { dg-options "-O3 -mesa" } */
/* { dg-require-effective-target fenv_exceptions } */
#define _GNU_SOURCE
#include <stdlib.h>
#include <stdio.h>
#include <fenv.h>
#define INFINITYf (__builtin_inff())
#define INFINITY (__builtin_inf())
#define INFINITYl (__builtin_infl())
#define NANf (__builtin_nanf (""))
#define NAN (__builtin_nan (""))
#define NANl (__builtin_nanl (""))
#define TESTEXCEPT_FUNC(FUNC, TYPE_FROM, TYPE_TO) \
TYPE_TO \
__attribute__((noinline)) FUNC (TYPE_FROM a) \
{ \
asm volatile ("" : : "f" (a)); \
return (TYPE_TO)a; \
}
#define TESTEXCEPT(FUNC, EXCEPT, EXPECT, VALUE, TYPE_TO) \
{ \
TYPE_TO b; \
feclearexcept (FE_ALL_EXCEPT); \
b = FUNC (VALUE); \
if ((fetestexcept (EXCEPT) & (EXCEPT)) != EXPECT) \
{ \
printf ("FAIL in line: %d\n", __LINE__); \
abort (); \
} \
}
#define TESTEXCEPT_FUNC_ALLFLOATS(FUNC, TYPE_TO) \
TESTEXCEPT_FUNC (FUNC##_f, float, TYPE_TO); \
TESTEXCEPT_FUNC (FUNC##_d, double, TYPE_TO); \
TESTEXCEPT_FUNC (FUNC##_l, long double, TYPE_TO); \
#define TESTEXCEPT_ALLFLOATS(FUNC, EXCEPT, EXPECT, VALUE, TYPE_TO) \
TESTEXCEPT (FUNC##_f, EXCEPT, EXPECT, VALUE##f, TYPE_TO); \
TESTEXCEPT (FUNC##_d, EXCEPT, EXPECT, VALUE, TYPE_TO); \
TESTEXCEPT (FUNC##_l, EXCEPT, EXPECT, VALUE##l, TYPE_TO); \
TESTEXCEPT_FUNC_ALLFLOATS (a, unsigned long long);
TESTEXCEPT_FUNC_ALLFLOATS (u, long long);
int
main ()
{
/* Prevent getting signals. */
fedisableexcept (FE_INVALID);
/* To unsigned long long */
TESTEXCEPT_ALLFLOATS (a, FE_INVALID, FE_INVALID, INFINITY, unsigned long long);
TESTEXCEPT_ALLFLOATS (a, FE_INVALID, FE_INVALID, -INFINITY, unsigned long long);
TESTEXCEPT_ALLFLOATS (a, FE_INVALID, FE_INVALID, NAN, unsigned long long);
TESTEXCEPT_ALLFLOATS (a, FE_INVALID, FE_INVALID, -NAN, unsigned long long);
/* Negative values >-1.0 must not cause FE_INVALID. */
TESTEXCEPT_ALLFLOATS (a, FE_INVALID, 0, -0x0.ffffffp0, unsigned long long);
/* -1.0 instead must. */
TESTEXCEPT_ALLFLOATS (a, FE_INVALID, FE_INVALID, -0x1.0p+0, unsigned long long);
TESTEXCEPT_ALLFLOATS (a, FE_INVALID, 0, 0x1.0p+63, unsigned long long);
TESTEXCEPT_ALLFLOATS (a, FE_INVALID, FE_INVALID, 0x1.0p+64, unsigned long long);
/* To signed long long */
TESTEXCEPT_ALLFLOATS (u, FE_INVALID, FE_INVALID, INFINITY, long long);
TESTEXCEPT_ALLFLOATS (u, FE_INVALID, FE_INVALID, -INFINITY, long long);
TESTEXCEPT_ALLFLOATS (u, FE_INVALID, FE_INVALID, NAN, long long);
TESTEXCEPT_ALLFLOATS (u, FE_INVALID, FE_INVALID, -NAN, long long);
TESTEXCEPT_ALLFLOATS (u, FE_INVALID, 0, -0x1.0p+63, long long);
TESTEXCEPT_ALLFLOATS (u, FE_INVALID, FE_INVALID, -0x1.1p+63, long long);
TESTEXCEPT_ALLFLOATS (u, FE_INVALID, 0, 0x0.fffffp+63, long long);
TESTEXCEPT_ALLFLOATS (u, FE_INVALID, FE_INVALID, 0x1.0p+63, long long);
/* If there are additional bits which would not make it into the
integer value no exception is supposed to occur. */
TESTEXCEPT (u_l, FE_INVALID, 0, -0x1.000000000000000123p+63l, long long);
TESTEXCEPT (u_l, FE_INVALID, FE_INVALID, -0x1.000000000000000223p+63l, long long);
return 0;
}
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