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| author | H.J. Lu <hjl.tools@gmail.com> | 2015-10-09 11:33:30 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2015-10-09 11:42:10 -0700 |
| commit | 4b71ce6c1a50c14c758f1dd7a2943f2ab9760e85 (patch) | |
| tree | f5b4c1583cd758301d678976a78071f829f5b6a9 /sysdeps/x86_64/x32/fpu/s_lrintl.S | |
| parent | 0fcc93bce950c8d0c440eee3f968fbeec22db784 (diff) | |
Update lrint/lrintf/lrintl for x32
The x86_64 versions of lrint/lrintf/ lrintl are aliases for the long
long versions which isn't correct for x32, where exceptions must respect
overflow for 32-bit long. Separate versions of the long functions for
x32 that convert to 32-bit long and raise the right exceptions for that
conversion, while keeping the aliases in the non-x32 case.
Tested on x86_64 and x32. There are no code changes in libm.so on
x86_64.
* sysdeps/x86_64/fpu/s_llrint.S (__lrint): Add alias only if
__ILP32__ isn't defined.
(lrint): Likewise.
* sysdeps/x86_64/fpu/s_llrintf.S (__lrintf): Likewise.
(lrintf): Likewise.
* sysdeps/x86_64/fpu/s_llrintl.S (__lrintl): Likewise.
(lrintl): Likewise.
* sysdeps/x86_64/x32/fpu/s_lrint.S: New file.
* sysdeps/x86_64/x32/fpu/s_lrintf.S: Likewise.
* sysdeps/x86_64/x32/fpu/s_lrintl.S: Likewise.
Diffstat (limited to 'sysdeps/x86_64/x32/fpu/s_lrintl.S')
| -rw-r--r-- | sysdeps/x86_64/x32/fpu/s_lrintl.S | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/sysdeps/x86_64/x32/fpu/s_lrintl.S b/sysdeps/x86_64/x32/fpu/s_lrintl.S new file mode 100644 index 0000000000..b10bf34015 --- /dev/null +++ b/sysdeps/x86_64/x32/fpu/s_lrintl.S @@ -0,0 +1,30 @@ +/* Round argument to nearest integral value according to current rounding + direction. + Copyright (C) 1997-2015 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 <sysdep.h> + + .text +ENTRY(__lrintl) + fldt 8(%rsp) + fistpl -4(%rsp) + fwait + movl -4(%rsp),%eax + ret +END(__lrintl) +weak_alias (__lrintl, lrintl) |