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author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
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committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /sysdeps/ieee754/ldbl-128ibm/s_totalorderl.c | |
parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
download | glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.tar.gz glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.tar.xz glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.zip |
Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control).
Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/s_totalorderl.c')
-rw-r--r-- | sysdeps/ieee754/ldbl-128ibm/s_totalorderl.c | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_totalorderl.c b/sysdeps/ieee754/ldbl-128ibm/s_totalorderl.c deleted file mode 100644 index 963376a7cf..0000000000 --- a/sysdeps/ieee754/ldbl-128ibm/s_totalorderl.c +++ /dev/null @@ -1,62 +0,0 @@ -/* Total order operation. ldbl-128ibm version. - Copyright (C) 2016-2017 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> -#include <math_private.h> -#include <nan-high-order-bit.h> -#include <stdint.h> - -int -totalorderl (long double x, long double y) -{ - double xhi, xlo, yhi, ylo; - int64_t hx, hy, lx, ly; - - ldbl_unpack (x, &xhi, &xlo); - EXTRACT_WORDS64 (hx, xhi); - ldbl_unpack (y, &yhi, &ylo); - EXTRACT_WORDS64 (hy, yhi); -#if HIGH_ORDER_BIT_IS_SET_FOR_SNAN -# error not implemented -#endif - uint64_t hx_sign = hx >> 63; - uint64_t hy_sign = hy >> 63; - int64_t hx_adj = hx ^ (hx_sign >> 1); - int64_t hy_adj = hy ^ (hy_sign >> 1); - if (hx_adj < hy_adj) - return 1; - else if (hx_adj > hy_adj) - return 0; - - /* The high doubles are identical. If they are NaNs or both the low - parts are zero, the low parts are not significant (and if they - are infinities, both the low parts must be zero). */ - if ((hx & 0x7fffffffffffffffULL) >= 0x7ff0000000000000ULL) - return 1; - EXTRACT_WORDS64 (lx, xlo); - EXTRACT_WORDS64 (ly, ylo); - if (((lx | ly) & 0x7fffffffffffffffULL) == 0) - return 1; - - /* Otherwise compare the low parts. */ - uint64_t lx_sign = lx >> 63; - uint64_t ly_sign = ly >> 63; - lx ^= lx_sign >> 1; - ly ^= ly_sign >> 1; - return lx <= ly; -} |