2016-10-26 Joseph Myers <joseph@codesourcery.com>
+ * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
+ (canonicalize): New declaration.
+ * math/Versions (canonicalize): New libm symbol at version
+ GLIBC_2.25.
+ (canonicalizef): Likewise.
+ (canonicalizel): Likewise.
+ * math/Makefile (gen-libm-calls): Add s_canonicalizeF.
+ * math/s_canonicalize_template.c: New file.
+ * math/libm-test.inc: Update comment on functions tested and
+ testing of NaN payloads.
+ (TEST_NAN_PAYLOAD): New macro.
+ (NO_TEST_INLINE): Update value.
+ (XFAIL_TEST): Likewise.
+ (ERRNO_UNCHANGED): Likewise.
+ (ERRNO_EDOM): Likewise.
+ (ERRNO_ERANGE): Likewise.
+ (IGNORE_RESULT): Likewise.
+ (NON_FINITE): Likewise.
+ (TEST_SNAN): Likewise.
+ (NO_TEST_MATHVEC): Likewise.
+ (TEST_NAN_PAYLOAD_CANONICALIZE): New macro.
+ (check_float_internal): Check NaN payloads if TEST_NAN_PAYLOAD.
+ (struct test_Ffp_b1_data): New type.
+ (RUN_TEST_Ffp_b1): New macro.
+ (RUN_TEST_LOOP_Ffp_b1): Likewise.
+ (canonicalize_test_data): New array.
+ (canonicalize_test): New function.
+ (main): Call canonicalize_test.
+ * manual/arith.texi (FP Bit Twiddling): Document canonicalize,
+ canonicalizef and canonicalizel.
+ * manual/libm-err-tab.pl: Update comment on interfaces without
+ ulps tabulated.
+ * sysdeps/ieee754/ldbl-opt/nldbl-canonicalize.c: New file.
+ * sysdeps/ieee754/ldbl-opt/s_canonicalizel.c: Likewise.
+ * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add
+ canonicalize.
+ (CFLAGS-nldbl-canonicalize.c): New variable.
+ * sysdeps/ieee754/ldbl-128ibm/test-iscanonical-ldbl-128ibm.c: Move
+ to ...
+ * sysdeps/ieee754/ldbl-128ibm/test-canonical-ldbl-128ibm.c:
+ ... here.
+ (do_test): Also test canonicalizel.
+ * sysdeps/ieee754/ldbl-128ibm/Makefile (tests): Change
+ test-iscanonical-ldbl-128ibm to test-canonical-ldbl-128ibm.
+ * sysdeps/ieee754/ldbl-128ibm/include/bits/iscanonical.h: New
+ file.
+ * sysdeps/ieee754/ldbl-128ibm/s_iscanonicall.c (__iscanonicall):
+ Use libm_hidden_def.
+ * sysdeps/ieee754/ldbl-96/test-iscanonical-ldbl-96.c: Move to ...
+ * sysdeps/ieee754/ldbl-96/test-canonical-ldbl-96.c: ... here.
+ (do_test): Also test canonicalizel.
+ * sysdeps/ieee754/ldbl-96/Makefile (tests): Change
+ test-iscanonical-ldbl-96 to test-canonical-ldbl-96.
+ * sysdeps/ieee754/ldbl-96/include/bits/iscanonical.h: New file.
+ * sysdeps/ieee754/ldbl-96/s_iscanonicall.c (__iscanonicall): Use
+ libm_hidden_def.
+ * sysdeps/generic/math-tests.h (SNAN_TESTS_PRESERVE_PAYLOAD): New
+ macro.
+ * sysdeps/mips/math-tests.h [__mips_hard_float && !__mips_nan2008]
+ (SNAN_TESTS_PRESERVE_PAYLOAD): Likewise.
+ * sysdeps/nacl/libm.abilist: Update.
+ * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
+ Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
+ Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
+ Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
+ Likewise.
+ * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
+ Likewise.
+ * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
+ Likewise.
+ * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
+ * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
+
* sysdeps/ieee754/ldbl-opt/nldbl-getpayload.c: New file.
* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add
getpayload.
- Total order functions: totalorder, totalorderf, totalorderl,
totalordermag, totalordermagf, totalordermagl.
+ - Canonicalize functions: canonicalize, canonicalizef, canonicalizel.
+
- NaN functions: getpayload, getpayloadf, getpayloadl.
* The functions strfromd, strfromf, and strfroml, from ISO/IEC TS 18661-1:2014,
@comment math.h
@comment ISO
+@deftypefun int canonicalize (double *@var{cx}, const double *@var{x})
+@comment math.h
+@comment ISO
+@deftypefunx int canonicalizef (float *@var{cx}, const float *@var{x})
+@comment math.h
+@comment ISO
+@deftypefunx int canonicalizel (long double *@var{cx}, const long double *@var{x})
+@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}}
+In some floating-point formats, some values have canonical (preferred)
+and noncanonical encodings (for IEEE interchange binary formats, all
+encodings are canonical). These functions, defined by TS
+18661-1:2014, attempt to produce a canonical version of the
+floating-point value pointed to by @var{x}; if that value is a
+signaling NaN, they raise the invalid exception and produce a quiet
+NaN. If a canonical value is produced, it is stored in the object
+pointed to by @var{cx}, and these functions return zero. Otherwise
+(if a canonical value could not be produced because the object pointed
+to by @var{x} is not a valid representation of any floating-point
+value), the object pointed to by @var{cx} is unchanged and a nonzero
+value is returned.
+
+Note that some formats have multiple encodings of a value which are
+all equally canonical; when such an encoding is used as an input to
+this function, any such encoding of the same value (or of the
+corresponding quiet NaN, if that value is a signaling NaN) may be
+produced as output.
+@end deftypefun
+
+@comment math.h
+@comment ISO
@deftypefun double getpayload (const double *@var{x})
@comment math.h
@comment ISO
"nextup", "pow", "remainder", "remquo", "rint", "round", "scalb",
"scalbn", "sin", "sincos", "sinh", "sqrt", "tan", "tanh", "tgamma",
"trunc", "y0", "y1", "yn" );
-# fpclassify, getpayload, iscanonical, isnormal, isfinite, isinf, isnan,
-# issignaling, issubnormal, iszero, signbit, iseqsig, isgreater,
-# isgreaterequal, isless, islessequal, islessgreater, isunordered,
-# totalorder, totalordermag
+# canonicalize, fpclassify, getpayload, iscanonical, isnormal,
+# isfinite, isinf, isnan, issignaling, issubnormal, iszero, signbit,
+# iseqsig, isgreater, isgreaterequal, isless, islessequal,
+# islessgreater, isunordered, totalorder, totalordermag
# are not tabulated.
if ($#ARGV == 0) {
k_casinhF s_csinhF k_casinhF s_csinhF s_catanhF s_catanF \
s_ctanF s_ctanhF s_cexpF s_clogF s_cprojF s_csqrtF \
s_cpowF s_clog10F s_fdimF s_nextdownF s_fmaxF s_fminF \
- s_nanF s_iseqsigF
+ s_nanF s_iseqsigF s_canonicalizeF
libm-calls = \
e_acosF e_acoshF e_asinF e_atan2F e_atanhF e_coshF e_expF e_fmodF \
totalorder; totalorderf; totalorderl;
totalordermag; totalordermagf; totalordermagl;
getpayload; getpayloadf; getpayloadl;
+ canonicalize; canonicalizef; canonicalizel;
}
}
__MATHDECL_1 (int, totalordermag,, (_Mdouble_ __x, _Mdouble_ __y))
__attribute__ ((__const__));
+/* Canonicalize floating-point representation. */
+__MATHDECL_1 (int, canonicalize,, (_Mdouble_ *__cx, const _Mdouble_ *__x));
+
/* Get NaN payload. */
__MATHCALL (getpayload,, (const _Mdouble_ *__x));
#endif
/* This testsuite has currently tests for:
acos, acosh, asin, asinh, atan, atan2, atanh,
- cbrt, ceil, copysign, cos, cosh, drem, erf, erfc, exp, exp10, exp2, expm1,
+ canonicalize, cbrt, ceil, copysign, cos, cosh, drem,
+ erf, erfc, exp, exp10, exp2, expm1,
fabs, fdim, finite, floor, fma, fmax, fmin, fmod, fpclassify,
frexp, gamma, getpayload, hypot,
ilogb, iscanonical, isfinite, isinf, isnan, isnormal, issignaling,
against. These implemented tests should check all cases that are
specified in ISO C99.
- NaN values: The payload of NaNs is not examined, but is set in
- inputs for functions where it is significant.
+ NaN values: The payload of NaNs is set in inputs for functions
+ where it is significant, and is examined in the outputs of some
+ functions.
Inline functions: Inlining functions should give an improvement in
speed - but not in precission. The inlined functions return
/* Some special test flags, passed together with exceptions. */
#define IGNORE_ZERO_INF_SIGN 0x400
#define TEST_NAN_SIGN 0x800
-#define NO_TEST_INLINE 0x1000
-#define XFAIL_TEST 0x2000
+#define TEST_NAN_PAYLOAD 0x1000
+#define NO_TEST_INLINE 0x2000
+#define XFAIL_TEST 0x4000
/* Indicate errno settings required or disallowed. */
-#define ERRNO_UNCHANGED 0x4000
-#define ERRNO_EDOM 0x8000
-#define ERRNO_ERANGE 0x10000
+#define ERRNO_UNCHANGED 0x8000
+#define ERRNO_EDOM 0x10000
+#define ERRNO_ERANGE 0x20000
/* Flags generated by gen-libm-test.pl, not entered here manually. */
-#define IGNORE_RESULT 0x20000
-#define NON_FINITE 0x40000
-#define TEST_SNAN 0x80000
-#define NO_TEST_MATHVEC 0x100000
+#define IGNORE_RESULT 0x40000
+#define NON_FINITE 0x80000
+#define TEST_SNAN 0x100000
+#define NO_TEST_MATHVEC 0x200000
+
+#define TEST_NAN_PAYLOAD_CANONICALIZE (SNAN_TESTS_PRESERVE_PAYLOAD \
+ ? TEST_NAN_PAYLOAD \
+ : 0)
#define __CONCATX(a,b) __CONCAT(a,b)
ok = 0;
printf ("signaling NaN has wrong sign.\n");
}
+ else if ((exceptions & TEST_NAN_PAYLOAD) != 0
+ && (FUNC (getpayload) (&computed)
+ != FUNC (getpayload) (&expected)))
+ {
+ ok = 0;
+ printf ("signaling NaN has wrong payload.\n");
+ }
else
ok = 1;
}
ok = 0;
printf ("quiet NaN has wrong sign.\n");
}
+ else if ((exceptions & TEST_NAN_PAYLOAD) != 0
+ && (FUNC (getpayload) (&computed)
+ != FUNC (getpayload) (&expected)))
+ {
+ ok = 0;
+ printf ("quiet NaN has wrong payload.\n");
+ }
else
ok = 1;
}
FLOAT extra2_expected;
} rd, rn, rz, ru;
};
+struct test_Ffp_b1_data
+{
+ const char *arg_str;
+ FLOAT arg;
+ struct
+ {
+ int expected;
+ int exceptions;
+ int extra_test;
+ FLOAT extra_expected;
+ } rd, rn, rz, ru;
+};
/* Set the rounding mode, or restore the saved value. */
#define IF_ROUND_INIT_ /* Empty. */
(ARRAY)[i].RM_##ROUNDING_MODE.extra_test, \
(ARRAY)[i].RM_##ROUNDING_MODE.extra_expected); \
ROUND_RESTORE_ ## ROUNDING_MODE
+#define RUN_TEST_Ffp_b1(ARG_STR, FUNC_NAME, ARG, EXPECTED, \
+ EXCEPTIONS, EXTRA_VAR, EXTRA_TEST, \
+ EXTRA_EXPECTED) \
+ do \
+ if (enable_test (EXCEPTIONS)) \
+ { \
+ COMMON_TEST_SETUP (ARG_STR); \
+ (EXTRA_VAR) = (EXTRA_EXPECTED) == 0 ? 1 : 0; \
+ check_bool (test_name, FUNC_TEST (FUNC_NAME) (&(EXTRA_VAR), \
+ &(ARG)), \
+ EXPECTED, EXCEPTIONS); \
+ EXTRA_OUTPUT_TEST_SETUP (ARG_STR, 1); \
+ if (EXTRA_TEST) \
+ check_float (extra1_name, EXTRA_VAR, EXTRA_EXPECTED, \
+ (EXCEPTIONS) & TEST_NAN_PAYLOAD); \
+ EXTRA_OUTPUT_TEST_CLEANUP (1); \
+ COMMON_TEST_CLEANUP; \
+ } \
+ while (0)
+#define RUN_TEST_LOOP_Ffp_b1(FUNC_NAME, ARRAY, ROUNDING_MODE, \
+ EXTRA_VAR) \
+ IF_ROUND_INIT_ ## ROUNDING_MODE \
+ for (size_t i = 0; i < sizeof (ARRAY) / sizeof (ARRAY)[0]; i++) \
+ RUN_TEST_Ffp_b1 ((ARRAY)[i].arg_str, FUNC_NAME, (ARRAY)[i].arg, \
+ (ARRAY)[i].RM_##ROUNDING_MODE.expected, \
+ (ARRAY)[i].RM_##ROUNDING_MODE.exceptions, \
+ EXTRA_VAR, \
+ (ARRAY)[i].RM_##ROUNDING_MODE.extra_test, \
+ (ARRAY)[i].RM_##ROUNDING_MODE.extra_expected); \
+ ROUND_RESTORE_ ## ROUNDING_MODE
#define RUN_TEST_c_c(ARG_STR, FUNC_NAME, ARGR, ARGC, EXPR, EXPC, \
EXCEPTIONS) \
do \
}
+static const struct test_Ffp_b1_data canonicalize_test_data[] =
+ {
+ TEST_Ffp_b1 (canonicalize, plus_infty, 0, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+ TEST_Ffp_b1 (canonicalize, minus_infty, 0, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+ TEST_Ffp_b1 (canonicalize, plus_zero, 0, plus_zero, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+ TEST_Ffp_b1 (canonicalize, minus_zero, 0, minus_zero, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+ TEST_Ffp_b1 (canonicalize, 1000, 0, 1000, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+ TEST_Ffp_b1 (canonicalize, max_value, 0, max_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+ TEST_Ffp_b1 (canonicalize, -max_value, 0, -max_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+ TEST_Ffp_b1 (canonicalize, min_value, 0, min_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+ TEST_Ffp_b1 (canonicalize, -min_value, 0, -min_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+ TEST_Ffp_b1 (canonicalize, min_subnorm_value, 0, min_subnorm_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+ TEST_Ffp_b1 (canonicalize, -min_subnorm_value, 0, -min_subnorm_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+ TEST_Ffp_b1 (canonicalize, qnan_value, 0, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+ TEST_Ffp_b1 (canonicalize, -qnan_value, 0, -qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+ TEST_Ffp_b1 (canonicalize, snan_value, 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+ TEST_Ffp_b1 (canonicalize, -snan_value, 0, -qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+#if HIGH_ORDER_BIT_IS_SET_FOR_SNAN
+ TEST_Ffp_b1 (canonicalize, snan_value_pl ("0x0"), 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+ TEST_Ffp_b1 (canonicalize, -snan_value_pl ("0x0"), 0, -qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+#else
+ TEST_Ffp_b1 (canonicalize, qnan_value_pl ("0x0"), 0, qnan_value_pl ("0x0"), NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+ TEST_Ffp_b1 (canonicalize, -qnan_value_pl ("0x0"), 0, -qnan_value_pl ("0x0"), NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+#endif
+ TEST_Ffp_b1 (canonicalize, qnan_value_pl ("0x1"), 0, qnan_value_pl ("0x1"), NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+ TEST_Ffp_b1 (canonicalize, -qnan_value_pl ("0x1"), 0, -qnan_value_pl ("0x1"), NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+ TEST_Ffp_b1 (canonicalize, snan_value_pl ("0x1"), 0, qnan_value_pl ("0x1"), NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD_CANONICALIZE),
+ TEST_Ffp_b1 (canonicalize, -snan_value_pl ("0x1"), 0, -qnan_value_pl ("0x1"), NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD_CANONICALIZE),
+ TEST_Ffp_b1 (canonicalize, qnan_value_pl ("0x2"), 0, qnan_value_pl ("0x2"), NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+ TEST_Ffp_b1 (canonicalize, -qnan_value_pl ("0x2"), 0, -qnan_value_pl ("0x2"), NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+ TEST_Ffp_b1 (canonicalize, snan_value_pl ("0x2"), 0, qnan_value_pl ("0x2"), NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD_CANONICALIZE),
+ TEST_Ffp_b1 (canonicalize, -snan_value_pl ("0x2"), 0, -qnan_value_pl ("0x2"), NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD_CANONICALIZE),
+ TEST_Ffp_b1 (canonicalize, qnan_value_pl ("0x3fffff"), 0, qnan_value_pl ("0x3fffff"), NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+ TEST_Ffp_b1 (canonicalize, -qnan_value_pl ("0x3fffff"), 0, -qnan_value_pl ("0x3fffff"), NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+ TEST_Ffp_b1 (canonicalize, snan_value_pl ("0x3fffff"), 0, qnan_value_pl ("0x3fffff"), NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD_CANONICALIZE),
+ TEST_Ffp_b1 (canonicalize, -snan_value_pl ("0x3fffff"), 0, -qnan_value_pl ("0x3fffff"), NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD_CANONICALIZE),
+#if PAYLOAD_DIG >= 51
+ TEST_Ffp_b1 (canonicalize, qnan_value_pl ("0x7ffffffffffff"), 0, qnan_value_pl ("0x7ffffffffffff"), NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+ TEST_Ffp_b1 (canonicalize, -qnan_value_pl ("0x7ffffffffffff"), 0, -qnan_value_pl ("0x7ffffffffffff"), NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+ TEST_Ffp_b1 (canonicalize, snan_value_pl ("0x7ffffffffffff"), 0, qnan_value_pl ("0x7ffffffffffff"), NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD_CANONICALIZE),
+ TEST_Ffp_b1 (canonicalize, -snan_value_pl ("0x7ffffffffffff"), 0, -qnan_value_pl ("0x7ffffffffffff"), NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD_CANONICALIZE),
+#endif
+#if PAYLOAD_DIG >= 62
+ TEST_Ffp_b1 (canonicalize, qnan_value_pl ("0x3fffffffffffffff"), 0, qnan_value_pl ("0x3fffffffffffffff"), NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+ TEST_Ffp_b1 (canonicalize, -qnan_value_pl ("0x3fffffffffffffff"), 0, -qnan_value_pl ("0x3fffffffffffffff"), NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+ TEST_Ffp_b1 (canonicalize, snan_value_pl ("0x3fffffffffffffff"), 0, qnan_value_pl ("0x3fffffffffffffff"), NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD_CANONICALIZE),
+ TEST_Ffp_b1 (canonicalize, -snan_value_pl ("0x3fffffffffffffff"), 0, -qnan_value_pl ("0x3fffffffffffffff"), NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD_CANONICALIZE),
+#endif
+#if PAYLOAD_DIG >= 111
+ TEST_Ffp_b1 (canonicalize, qnan_value_pl ("0x7fffffffffffffffffffffffffff"), 0, qnan_value_pl ("0x7fffffffffffffffffffffffffff"), NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+ TEST_Ffp_b1 (canonicalize, -qnan_value_pl ("0x7fffffffffffffffffffffffffff"), 0, -qnan_value_pl ("0x7fffffffffffffffffffffffffff"), NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD),
+ TEST_Ffp_b1 (canonicalize, snan_value_pl ("0x7fffffffffffffffffffffffffff"), 0, qnan_value_pl ("0x7fffffffffffffffffffffffffff"), NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD_CANONICALIZE),
+ TEST_Ffp_b1 (canonicalize, -snan_value_pl ("0x7fffffffffffffffffffffffffff"), 0, -qnan_value_pl ("0x7fffffffffffffffffffffffffff"), NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN|TEST_NAN_PAYLOAD_CANONICALIZE),
+#endif
+ };
+
+static void
+canonicalize_test (void)
+{
+ FLOAT x;
+
+ ALL_RM_TEST (canonicalize, 1, canonicalize_test_data, RUN_TEST_LOOP_Ffp_b1, END, x);
+}
+
+
static const struct test_c_f_data carg_test_data[] =
{
/* carg (x + iy) is specified as atan2 (y, x) */
totalorder_test ();
totalordermag_test ();
+ /* Canonicalize functions: */
+ canonicalize_test ();
+
/* NaN functions: */
getpayload_test ();
--- /dev/null
+/* Canonicalize floating-point representation.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <math.h>
+
+int
+M_DECL_FUNC (__canonicalize) (FLOAT *cx, const FLOAT *x)
+{
+ FLOAT val = *x;
+ /* For all binary formats supported by glibc, iscanonical only fails
+ if the representation is not a valid representation of the type,
+ so the only work to do is for signaling NaNs. */
+ if (!iscanonical (val))
+ return 1;
+ if (issignaling (val))
+ *cx = val + val;
+ else
+ *cx = val;
+ return 0;
+}
+
+declare_mgen_alias (__canonicalize, canonicalize)
# define SNAN_TESTS_TYPE_CAST 1
#endif
+/* Indicate whether operations on signaling NaNs preserve the payload
+ (if possible; it is not possible with a zero payload if the high
+ bit is set for signaling NaNs) when generating a quiet NaN, and
+ this should be tested. */
+#ifndef SNAN_TESTS_PRESERVE_PAYLOAD
+# define SNAN_TESTS_PRESERVE_PAYLOAD 1
+#endif
+
/* Indicate whether to run tests involving a given rounding mode for a
given floating-point type, given that fesetround succeeds for that
mode. All are run if fesetround succeeds unless overridden. */
ifeq ($(subdir),math)
tests += test-fmodl-ldbl-128ibm test-remainderl-ldbl-128ibm \
- test-remquol-ldbl-128ibm test-iscanonical-ldbl-128ibm \
+ test-remquol-ldbl-128ibm test-canonical-ldbl-128ibm \
test-totalorderl-ldbl-128ibm
endif
--- /dev/null
+#include_next <bits/iscanonical.h>
+
+#ifndef _ISOMAC
+libm_hidden_proto (__iscanonicall)
+#endif
int expdiff = hexp - lexp;
return expdiff > 53 || (expdiff == 53 && low_p2 && (ix & 1) == 0);
}
+libm_hidden_def (__iscanonicall)
-/* Test iscanonical for ldbl-128ibm.
+/* Test iscanonical and canonicalizel for ldbl-128ibm.
Copyright (C) 2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
long double ld = ldbl_pack (tests[i].hi, tests[i].lo);
bool canonical = iscanonical (ld);
if (canonical == tests[i].canonical)
- printf ("PASS: test %zu\n", i);
+ {
+ printf ("PASS: iscanonical test %zu\n", i);
+ long double ldc = 12345.0L;
+ bool canonicalize_ret = canonicalizel (&ldc, &ld);
+ if (canonicalize_ret == !canonical)
+ {
+ printf ("PASS: canonicalizel test %zu\n", i);
+ bool canon_ok;
+ if (!canonical)
+ canon_ok = ldc == 12345.0L;
+ else if (isnan (ld))
+ canon_ok = isnan (ldc) && !issignaling (ldc);
+ else
+ canon_ok = ldc == ld;
+ if (canon_ok)
+ printf ("PASS: canonicalized value test %zu\n", i);
+ else
+ {
+ printf ("FAIL: canonicalized value test %zu\n", i);
+ result = 1;
+ }
+ }
+ else
+ {
+ printf ("FAIL: canonicalizel test %zu\n", i);
+ result = 1;
+ }
+ }
else
{
- printf ("FAIL: test %zu\n", i);
+ printf ("FAIL: iscanonical test %zu\n", i);
result = 1;
}
}
# <http://www.gnu.org/licenses/>.
ifeq ($(subdir),math)
-tests += test-iscanonical-ldbl-96 test-totalorderl-ldbl-96
+tests += test-canonical-ldbl-96 test-totalorderl-ldbl-96
endif
--- /dev/null
+#include_next <bits/iscanonical.h>
+
+#ifndef _ISOMAC
+libm_hidden_proto (__iscanonicall)
+#endif
the high bit to be set. */
return ix == 0 || ix == 0x7fff || mant_high;
}
+libm_hidden_def (__iscanonicall)
-/* Test iscanonical for ldbl-96.
+/* Test iscanonical and canonicalizel for ldbl-96.
Copyright (C) 2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
tests[i].mantissa & 0xffffffffULL);
bool canonical = iscanonical (ld);
if (canonical == tests[i].canonical)
- printf ("PASS: test %zu\n", i);
+ {
+ printf ("PASS: iscanonical test %zu\n", i);
+ long double ldc = 12345.0L;
+ bool canonicalize_ret = canonicalizel (&ldc, &ld);
+ if (canonicalize_ret == !canonical)
+ {
+ printf ("PASS: canonicalizel test %zu\n", i);
+ bool canon_ok;
+ if (!canonical)
+ canon_ok = ldc == 12345.0L;
+ else if (isnan (ld))
+ canon_ok = isnan (ldc) && !issignaling (ldc);
+ else
+ canon_ok = ldc == ld;
+ if (canon_ok)
+ printf ("PASS: canonicalized value test %zu\n", i);
+ else
+ {
+ printf ("FAIL: canonicalized value test %zu\n", i);
+ result = 1;
+ }
+ }
+ else
+ {
+ printf ("FAIL: canonicalizel test %zu\n", i);
+ result = 1;
+ }
+ }
else
{
- printf ("FAIL: test %zu\n", i);
+ printf ("FAIL: iscanonical test %zu\n", i);
result = 1;
}
}
isoc99_vscanf isoc99_vfscanf isoc99_vsscanf \
isoc99_wscanf isoc99_fwscanf isoc99_swscanf \
isoc99_vwscanf isoc99_vfwscanf isoc99_vswscanf \
- nextup nextdown totalorder totalordermag getpayload
+ nextup nextdown totalorder totalordermag getpayload \
+ canonicalize
libnldbl-routines = $(libnldbl-calls:%=nldbl-%)
libnldbl-inhibit-o = $(object-suffixes)
libnldbl-static-only-routines = $(libnldbl-routines)
CFLAGS-nldbl-cabs.c = -fno-builtin-cabsl
CFLAGS-nldbl-cacos.c = -fno-builtin-cacosl
CFLAGS-nldbl-cacosh.c = -fno-builtin-cacoshl
+CFLAGS-nldbl-canonicalize.c = -fno-builtin-canonicalizel
CFLAGS-nldbl-carg.c = -fno-builtin-cargl
CFLAGS-nldbl-casin.c = -fno-builtin-casinl
CFLAGS-nldbl-casinh.c = -fno-builtin-casinhl
--- /dev/null
+/* Compatibility routine for IEEE double as long double for canonicalize.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include "nldbl-compat.h"
+
+int
+attribute_hidden
+canonicalizel (double *cx, double *x)
+{
+ return canonicalize (cx, x);
+}
--- /dev/null
+/* canonicalizel is not subject to complex aliasing rules. It was
+ added in glibc 2.25. */
+#define declare_mgen_alias(from, to) weak_alias (M_SUF (from), M_SUF (to))
+#include <math-type-macros-ldouble.h>
+#include <s_canonicalize_template.c>
# define EXCEPTION_TESTS_long_double 0
#endif
+/* NaN payload preservation when converting a signaling NaN to quiet
+ is only required in NAN2008 mode. */
+#if defined __mips_hard_float && !defined __mips_nan2008
+# define SNAN_TESTS_PRESERVE_PAYLOAD 0
+#endif
+
#include_next <math-tests.h>
GLIBC_2.25 GLIBC_2.25 A
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 GLIBC_2.25 A
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 GLIBC_2.25 A
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 GLIBC_2.25 A
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 GLIBC_2.25 A
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 GLIBC_2.25 A
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 GLIBC_2.25 A
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 GLIBC_2.25 A
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 GLIBC_2.25 A
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 GLIBC_2.25 A
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 GLIBC_2.25 A
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
GLIBC_2.25 __iseqsig F
GLIBC_2.25 __iseqsigf F
GLIBC_2.25 __iseqsigl F
+GLIBC_2.25 canonicalize F
+GLIBC_2.25 canonicalizef F
+GLIBC_2.25 canonicalizel F
GLIBC_2.25 fegetmode F
GLIBC_2.25 fesetexcept F
GLIBC_2.25 fesetmode F
projects / platform / upstream / glibc.git / commitdiff