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x86 long double: Add tests for pseudo normal numbers

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Add some tests for fpclassify, isnan, isinf and issignaling.

Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
This commit is contained in:
Siddhesh Poyarekar
2020-12-24 08:14:20 +05:30
parent 7525c1c71d
commit 38a033ac85
5 changed files with 94 additions and 0 deletions
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38
math/libm-test-driver.c
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@@ -19,6 +19,7 @@
#include "libm-test-support.h"
#include <math-tests-arch.h>
#include <nan-pseudo-number.h>
/* Flags set by the including file. */
const int flag_test_errno = TEST_ERRNO;
@@ -122,6 +123,16 @@ const char qtype_str[] = TYPE_STR;
/* For nexttoward tests. */
#define snan_value_ld __builtin_nansl ("")
/* For pseudo-normal number tests. */
#if HANDLE_PSEUDO_NUMBERS
# include <math_ldbl.h>
#define pseudo_inf { .parts = { 0x00000000, 0x00000000, 0x7fff }}
#define pseudo_zero { .parts = { 0x00000000, 0x00000000, 0x0100 }}
#define pseudo_qnan { .parts = { 0x00000001, 0x00000000, 0x7fff }}
#define pseudo_snan { .parts = { 0x00000001, 0x40000000, 0x7fff }}
#define pseudo_unnormal { .parts = { 0x00000001, 0x40000000, 0x0100 }}
#endif
/* Structures for each kind of test. */
/* Used for both RUN_TEST_LOOP_f_f and RUN_TEST_LOOP_fp_f. */
struct test_f_f_data
@@ -316,6 +327,19 @@ struct test_f_i_data
int exceptions;
} rd, rn, rz, ru;
};
/* Used for RUN_TEST_LOOP_f_i_tg_u and RUN_TEST_LOOP_f_b_tg_u. */
#if HANDLE_PSEUDO_NUMBERS
struct test_f_i_data_u
{
const char *arg_str;
ieee_long_double_shape_type arg;
struct
{
int expected;
int exceptions;
} rd, rn, rz, ru;
};
#endif
/* Used for RUN_TEST_LOOP_ff_b, RUN_TEST_LOOP_fpfp_b and
RUN_TEST_LOOP_ff_i_tg. */
struct test_ff_i_data
@@ -832,6 +856,20 @@ struct test_Ff_b1_data
(ARRAY)[i].RM_##ROUNDING_MODE.expected, \
(ARRAY)[i].RM_##ROUNDING_MODE.exceptions); \
ROUND_RESTORE_ ## ROUNDING_MODE
#define RUN_TEST_LOOP_f_b_tg_u(FUNC_NAME, ARRAY, ROUNDING_MODE) \
IF_ROUND_INIT_ ## ROUNDING_MODE \
for (size_t i = 0; i < sizeof (ARRAY) / sizeof (ARRAY)[0]; i++) \
RUN_TEST_f_b_tg ((ARRAY)[i].arg_str, FUNC_NAME, (ARRAY)[i].arg.value, \
(ARRAY)[i].RM_##ROUNDING_MODE.expected, \
(ARRAY)[i].RM_##ROUNDING_MODE.exceptions); \
ROUND_RESTORE_ ## ROUNDING_MODE
#define RUN_TEST_LOOP_f_i_tg_u(FUNC_NAME, ARRAY, ROUNDING_MODE) \
IF_ROUND_INIT_ ## ROUNDING_MODE \
for (size_t i = 0; i < sizeof (ARRAY) / sizeof (ARRAY)[0]; i++) \
RUN_TEST_f_i_tg ((ARRAY)[i].arg_str, FUNC_NAME, (ARRAY)[i].arg.value, \
(ARRAY)[i].RM_##ROUNDING_MODE.expected, \
(ARRAY)[i].RM_##ROUNDING_MODE.exceptions); \
ROUND_RESTORE_ ## ROUNDING_MODE
#define RUN_TEST_ff_b(ARG_STR, FUNC_NAME, ARG1, ARG2, EXPECTED, \
EXCEPTIONS) \
do \