diff options
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | math/libm-test.inc | 2 | ||||
| -rw-r--r-- | sysdeps/ieee754/dbl-64/e_asin.c | 2 |
3 files changed, 10 insertions, 1 deletions
@@ -1,3 +1,10 @@ +2016-06-06 Joseph Myers <joseph@codesourcery.com> + + [BZ #20212] + * sysdeps/ieee754/dbl-64/e_asin.c (__ieee754_acos): Add NaN + argument to itself. + * math/libm-test.inc (acos_test_data): Add sNaN tests. + 2016-06-06 Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com> * sysdeps/powerpc/powerpc64/power8/strcasestr.S (__strcasestr): diff --git a/math/libm-test.inc b/math/libm-test.inc index aaa01488ec..698172080c 100644 --- a/math/libm-test.inc +++ b/math/libm-test.inc @@ -1799,6 +1799,8 @@ static const struct test_f_f_data acos_test_data[] = TEST_f_f (acos, minus_infty, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM), TEST_f_f (acos, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), TEST_f_f (acos, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_f (acos, snan_value, qnan_value, INVALID_EXCEPTION), + TEST_f_f (acos, -snan_value, qnan_value, INVALID_EXCEPTION), /* |x| > 1: */ TEST_f_f (acos, 1.125L, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM), diff --git a/sysdeps/ieee754/dbl-64/e_asin.c b/sysdeps/ieee754/dbl-64/e_asin.c index d8c012d1d3..5d5fb01132 100644 --- a/sysdeps/ieee754/dbl-64/e_asin.c +++ b/sysdeps/ieee754/dbl-64/e_asin.c @@ -633,7 +633,7 @@ __ieee754_acos(double x) else if (k==0x3ff00000 && u.i[LOW_HALF]==0) return (m>0)?0:2.0*hp0.x; else - if (k>0x7ff00000 || (k == 0x7ff00000 && u.i[LOW_HALF] != 0)) return x; + if (k>0x7ff00000 || (k == 0x7ff00000 && u.i[LOW_HALF] != 0)) return x + x; else { u.i[HIGH_HALF]=0x7ff00000; v.i[HIGH_HALF]=0x7ff00000; |