From: Joseph Myers Date: Sat, 16 Nov 2013 12:48:35 +0000 (+0000) Subject: Test signs of NaNs in libm-test.inc where appropriate. X-Git-Tag: upstream/2.30~8419 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ce66581742e7ae1d6ce59e5d2d4859b2ae41218c;p=external%2Fglibc.git Test signs of NaNs in libm-test.inc where appropriate. --- diff --git a/ChangeLog b/ChangeLog index 96c22ba..7e543af 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,22 @@ 2013-11-16 Joseph Myers + * math/libm-test.inc (TEST_NAN_SIGN): New macro. + (NO_TEST_INLINE): Update value. + (ERRNO_UNCHANGED): Likewise. + (ERRNO_EDOM): Likewise. + (ERRNO_ERANGE): Likewise. + (IGNORE_RESULT): Likewise. + (check_float_internal): Check signs of NaN results if + TEST_NAN_SIGN used. + (check_complex): Pass TEST_NAN_SIGN flag through to second + check_float_internal call. + (copysign_test_data): Add tests with quiet NaNs as second + argument. Use TEST_NAN_SIGN. + (fabs_test_data): Add test of negative quiet NaN argument. Use + TEST_NAN_SIGN. + (signbit_test_data): Add tests of quiet NaN argument. + * math/gen-libm-test.pl (parse_args): Handle TEST_NAN_SIGN. + * math/gen-libm-test.pl (show_exceptions): Take extra argument $ignore_result. (parse_args): Handle function results specified as IGNORE. diff --git a/math/gen-libm-test.pl b/math/gen-libm-test.pl index 98112ed..bd701d7 100755 --- a/math/gen-libm-test.pl +++ b/math/gen-libm-test.pl @@ -218,7 +218,7 @@ sub parse_args { # consistency check if ($current_arg == $#args) { die ("wrong number of arguments") - unless ($args[$current_arg] =~ /EXCEPTION|ERRNO|IGNORE_ZERO_INF_SIGN|NO_TEST_INLINE/); + unless ($args[$current_arg] =~ /EXCEPTION|ERRNO|IGNORE_ZERO_INF_SIGN|TEST_NAN_SIGN|NO_TEST_INLINE/); } elsif ($current_arg < $#args) { die ("wrong number of arguments"); } elsif ($current_arg > ($#args+1)) { diff --git a/math/libm-test.inc b/math/libm-test.inc index 790fcc8..0c88abc 100644 --- a/math/libm-test.inc +++ b/math/libm-test.inc @@ -173,13 +173,14 @@ struct ulp_data #define EXCEPTIONS_OK INVALID_EXCEPTION_OK+DIVIDE_BY_ZERO_EXCEPTION_OK /* Some special test flags, passed together with exceptions. */ #define IGNORE_ZERO_INF_SIGN 0x400 -#define NO_TEST_INLINE 0x800 +#define TEST_NAN_SIGN 0x800 +#define NO_TEST_INLINE 0x1000 /* Indicate errno settings required or disallowed. */ -#define ERRNO_UNCHANGED 0x1000 -#define ERRNO_EDOM 0x2000 -#define ERRNO_ERANGE 0x4000 +#define ERRNO_UNCHANGED 0x2000 +#define ERRNO_EDOM 0x4000 +#define ERRNO_ERANGE 0x8000 /* Flags generated by gen-libm-test.pl, not entered here manually. */ -#define IGNORE_RESULT 0x8000 +#define IGNORE_RESULT 0x10000 /* Values underflowing only for float. */ #ifdef TEST_FLOAT @@ -732,11 +733,29 @@ check_float_internal (const char *test_name, FLOAT computed, FLOAT expected, goto out; FLOAT max_ulp = find_test_ulps (test_name); if (issignaling (computed) && issignaling (expected)) - ok = 1; + { + if ((exceptions & TEST_NAN_SIGN) != 0 + && signbit (computed) != signbit (expected)) + { + ok = 0; + printf ("signaling NaN has wrong sign.\n"); + } + else + ok = 1; + } else if (issignaling (computed) || issignaling (expected)) ok = 0; else if (isnan (computed) && isnan (expected)) - ok = 1; + { + if ((exceptions & TEST_NAN_SIGN) != 0 + && signbit (computed) != signbit (expected)) + { + ok = 0; + printf ("quiet NaN has wrong sign.\n"); + } + else + ok = 1; + } else if (isinf (computed) && isinf (expected)) { /* Test for sign of infinities. */ @@ -834,7 +853,9 @@ check_complex (const char *test_name, __complex__ FLOAT computed, /* Don't check again for exceptions or errno, just pass through the other relevant flags. */ check_float_internal (str, part_comp, part_exp, - exception & (IGNORE_ZERO_INF_SIGN | IGNORE_RESULT), + exception & (IGNORE_ZERO_INF_SIGN + | TEST_NAN_SIGN + | IGNORE_RESULT), &imag_max_error); free (str); } @@ -6815,11 +6836,15 @@ static const struct test_ff_f_data copysign_test_data[] = TEST_ff_f (copysign, minus_zero, plus_infty, 0, NO_INEXACT_EXCEPTION), TEST_ff_f (copysign, minus_zero, minus_zero, minus_zero, NO_INEXACT_EXCEPTION), - /* XXX More correctly we would have to check the sign of the NaN. */ - TEST_ff_f (copysign, qnan_value, 0, qnan_value, NO_INEXACT_EXCEPTION), - TEST_ff_f (copysign, qnan_value, minus_zero, qnan_value, NO_INEXACT_EXCEPTION), - TEST_ff_f (copysign, -qnan_value, 0, qnan_value, NO_INEXACT_EXCEPTION), - TEST_ff_f (copysign, -qnan_value, minus_zero, qnan_value, NO_INEXACT_EXCEPTION), + TEST_ff_f (copysign, 0, qnan_value, 0, NO_INEXACT_EXCEPTION), + TEST_ff_f (copysign, 0, -qnan_value, minus_zero, NO_INEXACT_EXCEPTION), + TEST_ff_f (copysign, minus_zero, qnan_value, 0, NO_INEXACT_EXCEPTION), + TEST_ff_f (copysign, minus_zero, -qnan_value, minus_zero, NO_INEXACT_EXCEPTION), + + TEST_ff_f (copysign, qnan_value, 0, qnan_value, NO_INEXACT_EXCEPTION|TEST_NAN_SIGN), + TEST_ff_f (copysign, qnan_value, minus_zero, -qnan_value, NO_INEXACT_EXCEPTION|TEST_NAN_SIGN), + TEST_ff_f (copysign, -qnan_value, 0, qnan_value, NO_INEXACT_EXCEPTION|TEST_NAN_SIGN), + TEST_ff_f (copysign, -qnan_value, minus_zero, -qnan_value, NO_INEXACT_EXCEPTION|TEST_NAN_SIGN), }; static void @@ -8196,7 +8221,8 @@ static const struct test_f_f_data fabs_test_data[] = TEST_f_f (fabs, plus_infty, plus_infty, NO_INEXACT_EXCEPTION), TEST_f_f (fabs, minus_infty, plus_infty, NO_INEXACT_EXCEPTION), - TEST_f_f (fabs, qnan_value, qnan_value, NO_INEXACT_EXCEPTION), + TEST_f_f (fabs, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|TEST_NAN_SIGN), + TEST_f_f (fabs, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|TEST_NAN_SIGN), TEST_f_f (fabs, 38.0, 38.0, NO_INEXACT_EXCEPTION), TEST_f_f (fabs, -M_El, M_El, NO_INEXACT_EXCEPTION), @@ -13347,11 +13373,12 @@ scalbln_test (void) static const struct test_f_i_data signbit_test_data[] = { - /* TODO: missing qNaN tests. */ TEST_f_b (signbit, 0, 0, NO_INEXACT_EXCEPTION), TEST_f_b (signbit, minus_zero, 1, NO_INEXACT_EXCEPTION), TEST_f_b (signbit, plus_infty, 0, NO_INEXACT_EXCEPTION), TEST_f_b (signbit, minus_infty, 1, NO_INEXACT_EXCEPTION), + TEST_f_b (signbit, qnan_value, 0, NO_INEXACT_EXCEPTION), + TEST_f_b (signbit, -qnan_value, 1, NO_INEXACT_EXCEPTION), /* signbit (x) != 0 for x < 0. */ TEST_f_b (signbit, -1, 1, NO_INEXACT_EXCEPTION),