| 1 |
298 |
jeremybenn |
/* Test floating-point conversions. */
|
| 2 |
|
|
/* Origin: Joseph Myers <joseph@codesourcery.com> */
|
| 3 |
|
|
|
| 4 |
|
|
#include <limits.h>
|
| 5 |
|
|
extern void abort (void);
|
| 6 |
|
|
extern void exit (int);
|
| 7 |
|
|
|
| 8 |
|
|
/* Not all platforms support TImode integers; logic as in
|
| 9 |
|
|
gcc.dg/titype-1.c. */
|
| 10 |
|
|
#if (defined(__LP64__) && !defined(__hppa__)) || defined(_WIN64)
|
| 11 |
|
|
typedef int TItype __attribute__ ((mode (TI)));
|
| 12 |
|
|
typedef unsigned int UTItype __attribute__ ((mode (TI)));
|
| 13 |
|
|
#else
|
| 14 |
|
|
typedef long TItype;
|
| 15 |
|
|
typedef unsigned long UTItype;
|
| 16 |
|
|
#endif
|
| 17 |
|
|
|
| 18 |
|
|
/* TEST_I_F(I, U, F, P) tests conversions between the pair of signed
|
| 19 |
|
|
and unsigned integer types I and U and the floating-point type F,
|
| 20 |
|
|
where P is the binary precision of the floating point type. We
|
| 21 |
|
|
test conversions of the values 0, 1, 0x7...f, 0x8...0, 0xf...f. We
|
| 22 |
|
|
also test conversions of values half way inbetween two
|
| 23 |
|
|
representable values (rounding both ways), just above half way, and
|
| 24 |
|
|
just below half way. */
|
| 25 |
|
|
#define TEST_I_F(I, U, F, P) \
|
| 26 |
|
|
do { \
|
| 27 |
|
|
TEST_I_F_VAL (I, F, (I)0, 1); \
|
| 28 |
|
|
TEST_I_F_VAL (I, F, (I)1, 1); \
|
| 29 |
|
|
TEST_I_F_VAL (I, F, (I)(((U)~(U)0) >> 1), P_OK1 (P, I)); \
|
| 30 |
|
|
TEST_I_F_VAL (I, F, (I)(U)~(((U)~(U)0) >> 1), 1); \
|
| 31 |
|
|
TEST_I_F_VAL (I, F, (I)(U)~(U)0, P_OK (P, I)); \
|
| 32 |
|
|
TEST_I_F_VAL (I, F, HVAL0S (P, I), P_OK (P, I)); \
|
| 33 |
|
|
TEST_I_F_VAL (I, F, HVAL0S (P, I) + 1, P_OK (P, I)); \
|
| 34 |
|
|
TEST_I_F_VAL (I, F, HVAL0S (P, I) - 1, P_OK (P, I)); \
|
| 35 |
|
|
TEST_I_F_VAL (I, F, HVAL1S (P, I), P_OK (P, I)); \
|
| 36 |
|
|
TEST_I_F_VAL (I, F, HVAL1S (P, I) + 1, P_OK (P, I)); \
|
| 37 |
|
|
TEST_I_F_VAL (I, F, HVAL1S (P, I) - 1, P_OK (P, I)); \
|
| 38 |
|
|
TEST_I_F_VAL (I, F, -HVAL0S (P, I), P_OK (P, I)); \
|
| 39 |
|
|
TEST_I_F_VAL (I, F, -HVAL0S (P, I) + 1, P_OK (P, I)); \
|
| 40 |
|
|
TEST_I_F_VAL (I, F, -HVAL0S (P, I) - 1, P_OK (P, I)); \
|
| 41 |
|
|
TEST_I_F_VAL (I, F, -HVAL1S (P, I), P_OK (P, I)); \
|
| 42 |
|
|
TEST_I_F_VAL (I, F, -HVAL1S (P, I) + 1, P_OK (P, I)); \
|
| 43 |
|
|
TEST_I_F_VAL (I, F, -HVAL1S (P, I) - 1, P_OK (P, I)); \
|
| 44 |
|
|
TEST_I_F_VAL (U, F, (U)0, 1); \
|
| 45 |
|
|
TEST_I_F_VAL (U, F, (U)1, 1); \
|
| 46 |
|
|
TEST_I_F_VAL (U, F, (U)(((U)~(U)0) >> 1), P_OK1 (P, U)); \
|
| 47 |
|
|
TEST_I_F_VAL (U, F, (U)~(((U)~(U)0) >> 1), 1); \
|
| 48 |
|
|
TEST_I_F_VAL (U, F, (U)~(U)0, P_OK (P, U)); \
|
| 49 |
|
|
TEST_I_F_VAL (U, F, HVAL0U (P, U), P_OK (P, U)); \
|
| 50 |
|
|
TEST_I_F_VAL (U, F, HVAL0U (P, U) + 1, P_OK (P, U)); \
|
| 51 |
|
|
TEST_I_F_VAL (U, F, HVAL0U (P, U) - 1, P_OK (P, U)); \
|
| 52 |
|
|
TEST_I_F_VAL (U, F, HVAL1U (P, U), P_OK (P, U)); \
|
| 53 |
|
|
TEST_I_F_VAL (U, F, HVAL1U (P, U) + 1, P_OK (P, U)); \
|
| 54 |
|
|
TEST_I_F_VAL (U, F, HVAL1U (P, U) - 1, P_OK (P, U)); \
|
| 55 |
|
|
} while (0)
|
| 56 |
|
|
|
| 57 |
|
|
#define P_OK(P, T) ((P) >= sizeof(T) * CHAR_BIT)
|
| 58 |
|
|
#define P_OK1(P, T) ((P) >= sizeof(T) * CHAR_BIT - 1)
|
| 59 |
|
|
#define HVAL0U(P, U) (U)(P_OK (P, U) \
|
| 60 |
|
|
? (U)1 \
|
| 61 |
|
|
: (((U)1 << (sizeof(U) * CHAR_BIT - 1)) \
|
| 62 |
|
|
+ ((U)1 << (sizeof(U) * CHAR_BIT - 1 - P))))
|
| 63 |
|
|
#define HVAL1U(P, U) (U)(P_OK (P, U) \
|
| 64 |
|
|
? (U)1 \
|
| 65 |
|
|
: (((U)1 << (sizeof(U) * CHAR_BIT - 1)) \
|
| 66 |
|
|
+ ((U)3 << (sizeof(U) * CHAR_BIT - 1 - P))))
|
| 67 |
|
|
#define HVAL0S(P, S) (S)(P_OK1 (P, S) \
|
| 68 |
|
|
? (S)1 \
|
| 69 |
|
|
: (((S)1 << (sizeof(S) * CHAR_BIT - 2)) \
|
| 70 |
|
|
+ ((S)1 << (sizeof(S) * CHAR_BIT - 2 - P))))
|
| 71 |
|
|
#define HVAL1S(P, S) (S)(P_OK1 (P, S) \
|
| 72 |
|
|
? (S)1 \
|
| 73 |
|
|
: (((S)1 << (sizeof(S) * CHAR_BIT - 2)) \
|
| 74 |
|
|
+ ((S)3 << (sizeof(S) * CHAR_BIT - 2 - P))))
|
| 75 |
|
|
|
| 76 |
|
|
#define TEST_I_F_VAL(IT, FT, VAL, PREC_OK) \
|
| 77 |
|
|
do { \
|
| 78 |
|
|
static volatile IT ivin, ivout; \
|
| 79 |
|
|
static volatile FT fv1, fv2; \
|
| 80 |
|
|
ivin = (VAL); \
|
| 81 |
|
|
fv1 = (VAL); \
|
| 82 |
|
|
fv2 = ivin; \
|
| 83 |
|
|
ivout = fv2; \
|
| 84 |
|
|
if (ivin != (VAL) \
|
| 85 |
|
|
|| ((PREC_OK) && ivout != ivin) \
|
| 86 |
|
|
|| ((PREC_OK) && ivout != (VAL)) \
|
| 87 |
|
|
|| fv1 != (VAL) || fv2 != (VAL) || fv1 != fv2) \
|
| 88 |
|
|
abort (); \
|
| 89 |
|
|
} while (0)
|
