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author | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
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committer | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
commit | e84eabb3871c9b39e59323bf3f6b98c2ca9d1cd0 (patch) | |
tree | dff3f1b79454b518d15a7b9bbedeb57ff156bbe8 /ports/sysdeps/alpha/soft-fp/ots_cmpe.c | |
parent | 75f0d3040a2c2de8842bfa7a09e11da1a73e17d0 (diff) | |
parent | e64ac02c24b43659048622714afdc92fedf561fa (diff) | |
download | glibc-e84eabb3871c9b39e59323bf3f6b98c2ca9d1cd0.tar.gz glibc-e84eabb3871c9b39e59323bf3f6b98c2ca9d1cd0.tar.xz glibc-e84eabb3871c9b39e59323bf3f6b98c2ca9d1cd0.zip |
Merge glibc-ports into ports/ directory. glibc-2.16.90 glibc-2.16-ports-merge
Diffstat (limited to 'ports/sysdeps/alpha/soft-fp/ots_cmpe.c')
-rw-r--r-- | ports/sysdeps/alpha/soft-fp/ots_cmpe.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/ports/sysdeps/alpha/soft-fp/ots_cmpe.c b/ports/sysdeps/alpha/soft-fp/ots_cmpe.c new file mode 100644 index 0000000000..ecf6d05532 --- /dev/null +++ b/ports/sysdeps/alpha/soft-fp/ots_cmpe.c @@ -0,0 +1,82 @@ +/* Software floating-point emulation: comparison. + Copyright (C) 1997,1999,2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + 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 "local-soft-fp.h" + +static long +internal_compare (long al, long ah, long bl, long bh) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + long r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_Q (r, A, B, 2); + + /* Relative comparisons signal invalid operation if either operand is NaN. */ + if (r == 2) + { + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + } + + return r; +} + +long +_OtsLssX (long al, long ah, long bl, long bh) +{ + long r = internal_compare (al, ah, bl, bh); + if (r == 2) + return -1; + else + return r < 0; +} + +long +_OtsLeqX (long al, long ah, long bl, long bh) +{ + long r = internal_compare (al, ah, bl, bh); + if (r == 2) + return -1; + else + return r <= 0; +} + +long +_OtsGtrX (long al, long ah, long bl, long bh) +{ + long r = internal_compare (al, ah, bl, bh); + if (r == 2) + return -1; + else + return r > 0; +} + +long +_OtsGeqX (long al, long ah, long bl, long bh) +{ + long r = internal_compare (al, ah, bl, bh); + if (r == 2) + return -1; + else + return r >= 0; +} |