diff options
author | Jakub Jelinek <jakub@redhat.com> | 2006-03-07 13:28:12 +0000 |
---|---|---|
committer | Jakub Jelinek <jakub@redhat.com> | 2006-03-07 13:28:12 +0000 |
commit | 4f2b8b027189b2ce09991b5a1c19843f6dcbbf94 (patch) | |
tree | 753f3eabf6c5cb70b7753a4fd5994bf7cc5ba6f5 | |
parent | 9dc858f906abd8782c0168d70bb20bfc0a7e4706 (diff) |
-rw-r--r-- | ChangeLog | 6 | ||||
-rw-r--r-- | fedora/glibc.spec.in | 5 | ||||
-rw-r--r-- | math/libm-test.inc | 48 | ||||
-rw-r--r-- | sysdeps/powerpc/powerpc64/fpu/s_rintl.S | 113 |
4 files changed, 57 insertions, 115 deletions
@@ -1,3 +1,9 @@ +2006-03-07 Jakub Jelinek <jakub@redhat.com> + + * math/libm-test.inc [TEST_LDOUBLE] (ceil_test, floor_test, rint_test, + round_test, trunc_test): Only run some of the new tests if + LDBL_MANT_DIG > 100. + 2006-03-03 Steven Munroe <sjmunroe@us.ibm.com> Alan Modra <amodra@bigpond.net.au> diff --git a/fedora/glibc.spec.in b/fedora/glibc.spec.in index 5e958fea93..cc252b2c2d 100644 --- a/fedora/glibc.spec.in +++ b/fedora/glibc.spec.in @@ -1,4 +1,4 @@ -%define glibcrelease 2 +%define glibcrelease 3 %define auxarches i586 i686 athlon sparcv9 alphaev6 %define prelinkarches noarch %define xenarches i686 athlon @@ -1344,6 +1344,9 @@ rm -f *.filelist* %endif %changelog +* Tue Mar 7 2006 Jakub Jelinek <jakub@redhat.com> 2.4-3 +- really fix rintl on ppc64 + * Tue Mar 7 2006 Jakub Jelinek <jakub@redhat.com> 2.4-2 - accurate unwind info for lowlevellock.h stubs on %%{ix86} - fix ppc/ppc64 ceill, floorl, rintl, roundl and truncl (BZ#2423) diff --git a/math/libm-test.inc b/math/libm-test.inc index e2a1d90bf6..b144796f2a 100644 --- a/math/libm-test.inc +++ b/math/libm-test.inc @@ -1648,13 +1648,15 @@ ceil_test (void) TEST_f_f (ceil, -4503599627370496.5L, -4503599627370496.0L); TEST_f_f (ceil, -4503599627370496.75L, -4503599627370496.0L); TEST_f_f (ceil, -4503599627370497.5L, -4503599627370497.0L); - + +# if LDBL_MANT_DIG > 100 TEST_f_f (ceil, 4503599627370494.5000000000001L, 4503599627370495.0L); TEST_f_f (ceil, 4503599627370495.5000000000001L, 4503599627370496.0L); TEST_f_f (ceil, 4503599627370496.5000000000001L, 4503599627370497.0L); TEST_f_f (ceil, -4503599627370494.5000000000001L, -4503599627370494.0L); TEST_f_f (ceil, -4503599627370495.5000000000001L, -4503599627370495.0L); TEST_f_f (ceil, -4503599627370496.5000000000001L, -4503599627370496.0L); +# endif TEST_f_f (ceil, 9007199254740991.5L, 9007199254740992.0L); TEST_f_f (ceil, 9007199254740992.25L, 9007199254740993.0L); @@ -1668,6 +1670,7 @@ ceil_test (void) TEST_f_f (ceil, -9007199254740992.75L, -9007199254740992.0L); TEST_f_f (ceil, -9007199254740993.5L, -9007199254740993.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (ceil, 9007199254740991.0000000000001L, 9007199254740992.0L); TEST_f_f (ceil, 9007199254740992.0000000000001L, 9007199254740993.0L); TEST_f_f (ceil, 9007199254740993.0000000000001L, 9007199254740994.0L); @@ -1681,6 +1684,7 @@ ceil_test (void) TEST_f_f (ceil, -9007199254740991.5000000000001L, -9007199254740991.0L); TEST_f_f (ceil, -9007199254740992.5000000000001L, -9007199254740992.0L); TEST_f_f (ceil, -9007199254740993.5000000000001L, -9007199254740993.0L); +# endif TEST_f_f (ceil, 72057594037927935.5L, 72057594037927936.0L); TEST_f_f (ceil, 72057594037927936.25L, 72057594037927937.0L); @@ -2667,18 +2671,22 @@ floor_test (void) TEST_f_f (floor, 4503599627370496.5L, 4503599627370496.0L); TEST_f_f (floor, 4503599627370496.75L, 4503599627370496.0L); TEST_f_f (floor, 4503599627370497.5L, 4503599627370497.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (floor, 4503599627370494.5000000000001L, 4503599627370494.0L); TEST_f_f (floor, 4503599627370495.5000000000001L, 4503599627370495.0L); TEST_f_f (floor, 4503599627370496.5000000000001L, 4503599627370496.0L); +# endif TEST_f_f (floor, -4503599627370495.5L, -4503599627370496.0L); TEST_f_f (floor, -4503599627370496.25L, -4503599627370497.0L); TEST_f_f (floor, -4503599627370496.5L, -4503599627370497.0L); TEST_f_f (floor, -4503599627370496.75L, -4503599627370497.0L); TEST_f_f (floor, -4503599627370497.5L, -4503599627370498.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (floor, -4503599627370494.5000000000001L, -4503599627370495.0L); TEST_f_f (floor, -4503599627370495.5000000000001L, -4503599627370496.0L); TEST_f_f (floor, -4503599627370496.5000000000001L, -4503599627370497.0L); +# endif TEST_f_f (floor, 9007199254740991.5L, 9007199254740991.0L); TEST_f_f (floor, 9007199254740992.25L, 9007199254740992.0L); @@ -2686,12 +2694,14 @@ floor_test (void) TEST_f_f (floor, 9007199254740992.75L, 9007199254740992.0L); TEST_f_f (floor, 9007199254740993.5L, 9007199254740993.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (floor, 9007199254740991.0000000000001L, 9007199254740991.0L); TEST_f_f (floor, 9007199254740992.0000000000001L, 9007199254740992.0L); TEST_f_f (floor, 9007199254740993.0000000000001L, 9007199254740993.0L); TEST_f_f (floor, 9007199254740991.5000000000001L, 9007199254740991.0L); TEST_f_f (floor, 9007199254740992.5000000000001L, 9007199254740992.0L); TEST_f_f (floor, 9007199254740993.5000000000001L, 9007199254740993.0L); +# endif TEST_f_f (floor, -9007199254740991.5L, -9007199254740992.0L); TEST_f_f (floor, -9007199254740992.25L, -9007199254740993.0L); @@ -2699,12 +2709,14 @@ floor_test (void) TEST_f_f (floor, -9007199254740992.75L, -9007199254740993.0L); TEST_f_f (floor, -9007199254740993.5L, -9007199254740994.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (floor, -9007199254740991.0000000000001L, -9007199254740992.0L); TEST_f_f (floor, -9007199254740992.0000000000001L, -9007199254740993.0L); TEST_f_f (floor, -9007199254740993.0000000000001L, -9007199254740994.0L); TEST_f_f (floor, -9007199254740991.5000000000001L, -9007199254740992.0L); TEST_f_f (floor, -9007199254740992.5000000000001L, -9007199254740993.0L); TEST_f_f (floor, -9007199254740993.5000000000001L, -9007199254740994.0L); +# endif TEST_f_f (floor, 72057594037927935.5L, 72057594037927935.0L); TEST_f_f (floor, 72057594037927936.25L, 72057594037927936.0L); @@ -4033,9 +4045,11 @@ rint_test (void) TEST_f_f (rint, 4503599627370496.75L, 4503599627370497.0L); TEST_f_f (rint, 4503599627370497.5L, 4503599627370498.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (rint, 4503599627370494.5000000000001L, 4503599627370495.0L); TEST_f_f (rint, 4503599627370495.5000000000001L, 4503599627370496.0L); TEST_f_f (rint, 4503599627370496.5000000000001L, 4503599627370497.0L); +# endif TEST_f_f (rint, -4503599627370495.5L, -4503599627370496.0L); TEST_f_f (rint, -4503599627370496.25L, -4503599627370496.0L); @@ -4043,6 +4057,7 @@ rint_test (void) TEST_f_f (rint, -4503599627370496.75L, -4503599627370497.0L); TEST_f_f (rint, -4503599627370497.5L, -4503599627370498.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (rint, -4503599627370494.5000000000001L, -4503599627370495.0L); TEST_f_f (rint, -4503599627370495.5000000000001L, -4503599627370496.0L); TEST_f_f (rint, -4503599627370496.5000000000001L, -4503599627370497.0L); @@ -4060,6 +4075,7 @@ rint_test (void) TEST_f_f (rint, -9007199254740991.5000000000001L, -9007199254740992.0L); TEST_f_f (rint, -9007199254740992.5000000000001L, -9007199254740993.0L); TEST_f_f (rint, -9007199254740993.5000000000001L, -9007199254740994.0L); +# endif TEST_f_f (rint, 9007199254740991.5L, 9007199254740992.0L); TEST_f_f (rint, 9007199254740992.25L, 9007199254740992.0L); @@ -4128,14 +4144,17 @@ rint_test_tonearest (void) TEST_f_f (rint, 4503599627370496.5L, 4503599627370496.0L); TEST_f_f (rint, 4503599627370496.75L, 4503599627370497.0L); TEST_f_f (rint, 4503599627370497.5L, 4503599627370498.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (rint, 4503599627370494.5000000000001L, 4503599627370495.0L); TEST_f_f (rint, 4503599627370495.5000000000001L, 4503599627370496.0L); TEST_f_f (rint, 4503599627370496.5000000000001L, 4503599627370497.0L); +# endif TEST_f_f (rint, -4503599627370495.5L, -4503599627370496.0L); TEST_f_f (rint, -4503599627370496.25L, -4503599627370496.0L); TEST_f_f (rint, -4503599627370496.5L, -4503599627370496.0L); TEST_f_f (rint, -4503599627370496.75L, -4503599627370497.0L); TEST_f_f (rint, -4503599627370497.5L, -4503599627370498.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (rint, -4503599627370494.5000000000001L, -4503599627370495.0L); TEST_f_f (rint, -4503599627370495.5000000000001L, -4503599627370496.0L); TEST_f_f (rint, -4503599627370496.5000000000001L, -4503599627370497.0L); @@ -4153,6 +4172,7 @@ rint_test_tonearest (void) TEST_f_f (rint, -9007199254740991.5000000000001L, -9007199254740992.0L); TEST_f_f (rint, -9007199254740992.5000000000001L, -9007199254740993.0L); TEST_f_f (rint, -9007199254740993.5000000000001L, -9007199254740994.0L); +# endif #endif } @@ -4194,14 +4214,17 @@ rint_test_towardzero (void) TEST_f_f (rint, 4503599627370496.5L, 4503599627370496.0L); TEST_f_f (rint, 4503599627370496.75L, 4503599627370496.0L); TEST_f_f (rint, 4503599627370497.5L, 4503599627370497.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (rint, 4503599627370494.5000000000001L, 4503599627370494.0L); TEST_f_f (rint, 4503599627370495.5000000000001L, 4503599627370495.0L); TEST_f_f (rint, 4503599627370496.5000000000001L, 4503599627370496.0L); +# endif TEST_f_f (rint, -4503599627370495.5L, -4503599627370495.0L); TEST_f_f (rint, -4503599627370496.25L, -4503599627370496.0L); TEST_f_f (rint, -4503599627370496.5L, -4503599627370496.0L); TEST_f_f (rint, -4503599627370496.75L, -4503599627370496.0L); TEST_f_f (rint, -4503599627370497.5L, -4503599627370497.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (rint, -4503599627370494.5000000000001L, -4503599627370494.0L); TEST_f_f (rint, -4503599627370495.5000000000001L, -4503599627370495.0L); TEST_f_f (rint, -4503599627370496.5000000000001L, -4503599627370496.0L); @@ -4219,6 +4242,7 @@ rint_test_towardzero (void) TEST_f_f (rint, -9007199254740991.5000000000001L, -9007199254740991.0L); TEST_f_f (rint, -9007199254740992.5000000000001L, -9007199254740992.0L); TEST_f_f (rint, -9007199254740993.5000000000001L, -9007199254740993.0L); +# endif #endif } @@ -4260,14 +4284,17 @@ rint_test_downward (void) TEST_f_f (rint, 4503599627370496.5L, 4503599627370496.0L); TEST_f_f (rint, 4503599627370496.75L, 4503599627370496.0L); TEST_f_f (rint, 4503599627370497.5L, 4503599627370497.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (rint, 4503599627370494.5000000000001L, 4503599627370494.0L); TEST_f_f (rint, 4503599627370495.5000000000001L, 4503599627370495.0L); TEST_f_f (rint, 4503599627370496.5000000000001L, 4503599627370496.0L); +# endif TEST_f_f (rint, -4503599627370495.5L, -4503599627370496.0L); TEST_f_f (rint, -4503599627370496.25L, -4503599627370497.0L); TEST_f_f (rint, -4503599627370496.5L, -4503599627370497.0L); TEST_f_f (rint, -4503599627370496.75L, -4503599627370497.0L); TEST_f_f (rint, -4503599627370497.5L, -4503599627370498.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (rint, -4503599627370494.5000000000001L, -4503599627370495.0L); TEST_f_f (rint, -4503599627370495.5000000000001L, -4503599627370496.0L); TEST_f_f (rint, -4503599627370496.5000000000001L, -4503599627370497.0L); @@ -4285,6 +4312,7 @@ rint_test_downward (void) TEST_f_f (rint, -9007199254740991.5000000000001L, -9007199254740992.0L); TEST_f_f (rint, -9007199254740992.5000000000001L, -9007199254740993.0L); TEST_f_f (rint, -9007199254740993.5000000000001L, -9007199254740994.0L); +# endif #endif } @@ -4326,14 +4354,17 @@ rint_test_upward (void) TEST_f_f (rint, 4503599627370496.5L, 4503599627370497.0L); TEST_f_f (rint, 4503599627370496.75L, 4503599627370497.0L); TEST_f_f (rint, 4503599627370497.5L, 4503599627370498.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (rint, 4503599627370494.5000000000001L, 4503599627370495.0L); TEST_f_f (rint, 4503599627370495.5000000000001L, 4503599627370496.0L); TEST_f_f (rint, 4503599627370496.5000000000001L, 4503599627370497.0L); +# endif TEST_f_f (rint, -4503599627370495.5L, -4503599627370495.0L); TEST_f_f (rint, -4503599627370496.25L, -4503599627370496.0L); TEST_f_f (rint, -4503599627370496.5L, -4503599627370496.0L); TEST_f_f (rint, -4503599627370496.75L, -4503599627370496.0L); TEST_f_f (rint, -4503599627370497.5L, -4503599627370497.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (rint, -4503599627370494.5000000000001L, -4503599627370494.0L); TEST_f_f (rint, -4503599627370495.5000000000001L, -4503599627370495.0L); TEST_f_f (rint, -4503599627370496.5000000000001L, -4503599627370496.0L); @@ -4351,6 +4382,7 @@ rint_test_upward (void) TEST_f_f (rint, -9007199254740991.5000000000001L, -9007199254740991.0L); TEST_f_f (rint, -9007199254740992.5000000000001L, -9007199254740992.0L); TEST_f_f (rint, -9007199254740993.5000000000001L, -9007199254740993.0L); +# endif #endif } @@ -4390,18 +4422,22 @@ round_test (void) TEST_f_f (round, 4503599627370496.5L, 4503599627370497.0L); TEST_f_f (round, 4503599627370496.75L, 4503599627370497.0L); TEST_f_f (round, 4503599627370497.5L, 4503599627370498.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (round, 4503599627370494.5000000000001L, 4503599627370495.0L); TEST_f_f (round, 4503599627370495.5000000000001L, 4503599627370496.0L); TEST_f_f (round, 4503599627370496.5000000000001L, 4503599627370497.0L); +# endif TEST_f_f (round, -4503599627370495.5L, -4503599627370496.0L); TEST_f_f (round, -4503599627370496.25L, -4503599627370496.0L); TEST_f_f (round, -4503599627370496.5L, -4503599627370497.0L); TEST_f_f (round, -4503599627370496.75L, -4503599627370497.0L); TEST_f_f (round, -4503599627370497.5L, -4503599627370498.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (round, -4503599627370494.5000000000001L, -4503599627370495.0L); TEST_f_f (round, -4503599627370495.5000000000001L, -4503599627370496.0L); TEST_f_f (round, -4503599627370496.5000000000001L, -4503599627370497.0L); +# endif TEST_f_f (round, 9007199254740991.5L, 9007199254740992.0L); TEST_f_f (round, 9007199254740992.25L, 9007199254740992.0L); @@ -4415,6 +4451,7 @@ round_test (void) TEST_f_f (round, -9007199254740992.75L, -9007199254740993.0L); TEST_f_f (round, -9007199254740993.5L, -9007199254740994.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (round, 9007199254740991.0000000000001L, 9007199254740991.0L); TEST_f_f (round, 9007199254740992.0000000000001L, 9007199254740992.0L); TEST_f_f (round, 9007199254740993.0000000000001L, 9007199254740993.0L); @@ -4428,6 +4465,7 @@ round_test (void) TEST_f_f (round, -9007199254740991.5000000000001L, -9007199254740992.0L); TEST_f_f (round, -9007199254740992.5000000000001L, -9007199254740993.0L); TEST_f_f (round, -9007199254740993.5000000000001L, -9007199254740994.0L); +# endif TEST_f_f (round, 72057594037927935.5L, 72057594037927936.0L); TEST_f_f (round, 72057594037927936.25L, 72057594037927936.0L); @@ -4827,9 +4865,11 @@ trunc_test (void) TEST_f_f (trunc, 4503599627370496.75L, 4503599627370496.0L); TEST_f_f (trunc, 4503599627370497.5L, 4503599627370497.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (trunc, 4503599627370494.5000000000001L, 4503599627370494.0L); TEST_f_f (trunc, 4503599627370495.5000000000001L, 4503599627370495.0L); TEST_f_f (trunc, 4503599627370496.5000000000001L, 4503599627370496.0L); +# endif TEST_f_f (trunc, -4503599627370495.5L, -4503599627370495.0L); TEST_f_f (trunc, -4503599627370496.25L, -4503599627370496.0L); @@ -4837,9 +4877,11 @@ trunc_test (void) TEST_f_f (trunc, -4503599627370496.75L, -4503599627370496.0L); TEST_f_f (trunc, -4503599627370497.5L, -4503599627370497.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (trunc, -4503599627370494.5000000000001L, -4503599627370494.0L); TEST_f_f (trunc, -4503599627370495.5000000000001L, -4503599627370495.0L); TEST_f_f (trunc, -4503599627370496.5000000000001L, -4503599627370496.0L); +# endif TEST_f_f (trunc, 9007199254740991.5L, 9007199254740991.0L); TEST_f_f (trunc, 9007199254740992.25L, 9007199254740992.0L); @@ -4847,12 +4889,14 @@ trunc_test (void) TEST_f_f (trunc, 9007199254740992.75L, 9007199254740992.0L); TEST_f_f (trunc, 9007199254740993.5L, 9007199254740993.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (trunc, 9007199254740991.0000000000001L, 9007199254740991.0L); TEST_f_f (trunc, 9007199254740992.0000000000001L, 9007199254740992.0L); TEST_f_f (trunc, 9007199254740993.0000000000001L, 9007199254740993.0L); TEST_f_f (trunc, 9007199254740991.5000000000001L, 9007199254740991.0L); TEST_f_f (trunc, 9007199254740992.5000000000001L, 9007199254740992.0L); TEST_f_f (trunc, 9007199254740993.5000000000001L, 9007199254740993.0L); +# endif TEST_f_f (trunc, -9007199254740991.5L, -9007199254740991.0L); TEST_f_f (trunc, -9007199254740992.25L, -9007199254740992.0L); @@ -4860,12 +4904,14 @@ trunc_test (void) TEST_f_f (trunc, -9007199254740992.75L, -9007199254740992.0L); TEST_f_f (trunc, -9007199254740993.5L, -9007199254740993.0L); +# if LDBL_MANT_DIG > 100 TEST_f_f (trunc, -9007199254740991.0000000000001L, -9007199254740991.0L); TEST_f_f (trunc, -9007199254740992.0000000000001L, -9007199254740992.0L); TEST_f_f (trunc, -9007199254740993.0000000000001L, -9007199254740993.0L); TEST_f_f (trunc, -9007199254740991.5000000000001L, -9007199254740991.0L); TEST_f_f (trunc, -9007199254740992.5000000000001L, -9007199254740992.0L); TEST_f_f (trunc, -9007199254740993.5000000000001L, -9007199254740993.0L); +# endif TEST_f_f (trunc, 72057594037927935.5L, 72057594037927935.0L); TEST_f_f (trunc, 72057594037927936.25L, 72057594037927936.0L); diff --git a/sysdeps/powerpc/powerpc64/fpu/s_rintl.S b/sysdeps/powerpc/powerpc64/fpu/s_rintl.S deleted file mode 100644 index 2ca2d4481f..0000000000 --- a/sysdeps/powerpc/powerpc64/fpu/s_rintl.S +++ /dev/null @@ -1,113 +0,0 @@ -/* Round to int long double floating-point values. - IBM extended format long double version. - Copyright (C) 2004, 2006 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* This has been coded in assembler because GCC makes such a mess of it - when it's coded in C. */ - -#include <sysdep.h> -#include <math_ldbl_opt.h> - - .section ".toc","aw" -.LC0: /* 2**52 */ - .tc FD_43300000_0[TC],0x4330000000000000 - .section ".text" - -ENTRY (__rintl) - lfd fp13,.LC0@toc(2) - fabs fp0,fp1 - fsub fp12,fp13,fp13 /* generate 0.0 */ - fabs fp9,fp2 - fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */ - fcmpu cr6,fp1,fp12 /* if (x > 0.0) */ - bnl- cr7,.L2 - fmr fp2,fp12 - bng- cr6,.L1 - fadd fp1,fp1,fp13 /* x+= TWO52; */ - fsub fp1,fp1,fp13 /* x-= TWO52; */ - fabs fp1,fp1 /* if (x == 0.0) */ - blr /* x = 0.0; */ -.L1: - bnllr- cr6 /* if (x < 0.0) */ - fsub fp1,fp1,fp13 /* x-= TWO52; */ - fadd fp1,fp1,fp13 /* x+= TWO52; */ - fnabs fp1,fp1 /* if (x == 0.0) */ - blr /* x = -0.0; */ - -/* The high double is > TWO52 so we need to round the low double and - perhaps the high double. In this case we have to round the low - double and handle any adjustment to the high double that may be - caused by rounding (up). This is complicated by the fact that the - high double may already be rounded and the low double may have the - opposite sign to compensate.This gets a bit tricky so we use the - following algorithm: - - tau = floor(x_high/TWO52); - x0 = x_high - tau; - x1 = x_low + tau; - r1 = rint(x1); - y_high = x0 + r1; - y_low = x0 - y_high + r1; - return y; */ -.L2: - fcmpu cr7,fp9,fp13 /* if (|x_low| > TWO52) */ - fcmpu cr0,fp9,fp12 /* || (|x_low| == 0.0) */ - fcmpu cr5,fp2,fp12 /* if (x_low > 0.0) */ - bgelr- cr7 /* return x; */ - beqlr- cr0 - fdiv fp8,fp1,fp13 /* x_high/TWO52 */ - - bng- cr6,.L6 /* if (x > 0.0) */ - fctidz fp0,fp8 - fcfid fp8,fp0 /* tau = floor(x_high/TWO52); */ - fadd fp8,fp8,fp8 /* tau++; Make tau even */ - bng cr5,.L4 /* if (x_low > 0.0) */ - fmr fp3,fp1 - fmr fp4,fp2 - b .L5 -.L4: /* if (x_low < 0.0) */ - fsub fp3,fp1,fp8 /* x0 = x_high - tau; */ - fadd fp4,fp2,fp8 /* x1 = x_low + tau; */ -.L5: - fadd fp5,fp4,fp13 /* r1 = x1 + TWO52; */ - fsub fp5,fp5,fp13 /* r1 = r1 - TWO52; */ - b .L9 -.L6: /* if (x < 0.0) */ - fctidz fp0,fp8 - fcfid fp8,fp0 /* tau = floor(x_high/TWO52); */ - fadd fp8,fp8,fp8 /* tau++; Make tau even */ - bnl cr5,.L7 /* if (x_low < 0.0) */ - fmr fp3,fp1 - fmr fp4,fp2 - b .L8 -.L7: /* if (x_low > 0.0) */ - fsub fp3,fp1,fp8 /* x0 = x_high - tau; */ - fadd fp4,fp2,fp8 /* x1 = x_low + tau; */ -.L8: - fsub fp5,fp13,fp4 /* r1 = TWO52 - x1; */ - fsub fp0,fp5,fp13 /* r1 = - (r1 - TWO52); */ - fneg fp5,fp0 -.L9: - fadd fp1,fp3,fp5 /* y_high = x0 + r1; */ - fsub fp2,fp3,fp1 /* y_low = x0 - y_high + r1; */ - fadd fp2,fp2,fp5 - blr -END (__rintl) - -long_double_symbol (libm, __rintl, rintl) |