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| author | Ulrich Drepper <drepper@redhat.com> | 2003-11-18 07:25:02 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-11-18 07:25:02 +0000 |
| commit | 5f93cd52f626b77301c5e1db3d973eefc534323b (patch) | |
| tree | 8bf877d6a8b552be0cd43b88c7540cdbc63397d6 /sysdeps/x86_64/fpu/s_floorl.S | |
| parent | 5ddb5bf5fbceb6f44f04f7267eb214eee5fc2f90 (diff) | |
| download | glibc-5f93cd52f626b77301c5e1db3d973eefc534323b.tar glibc-5f93cd52f626b77301c5e1db3d973eefc534323b.tar.gz glibc-5f93cd52f626b77301c5e1db3d973eefc534323b.tar.bz2 glibc-5f93cd52f626b77301c5e1db3d973eefc534323b.zip | |
Update.
2003-11-17 Jakub Jelinek <jakub@redhat.com>
* posix/regcomp.c (optimize_utf8): Optimize multi-byte chars as
well.
* posix/bug-regex20.c (tests): Add new tests. Multi-byte char
followed by dup operator is expected to be optimized.
* posix/regexec.c (check_node_accept_bytes): Move nrules and j
variables to the block where they are only used, initialize
nrules only immediately before using it.
2003-11-15 Andreas Jaeger <aj@suse.de>
* sysdeps/x86_64/fpu/s_scalbnl.S: New file.
* sysdeps/x86_64/fpu/s_truncl.S: New file.
* sysdeps/x86_64/fpu/s_nearbyintl.S: New file.
* sysdeps/x86_64/fpu/s_floorl.S: New file.
* sysdeps/x86_64/fpu/s_ilogbl.S: New file.
* sysdeps/x86_64/fpu/e_remainderl.S: New file.
* math/libm-test.inc (floor_test): Test also ±0.25.
(ceil_test): Test -0.25.
Diffstat (limited to 'sysdeps/x86_64/fpu/s_floorl.S')
| -rw-r--r-- | sysdeps/x86_64/fpu/s_floorl.S | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/sysdeps/x86_64/fpu/s_floorl.S b/sysdeps/x86_64/fpu/s_floorl.S new file mode 100644 index 0000000000..f9ecc388df --- /dev/null +++ b/sysdeps/x86_64/fpu/s_floorl.S @@ -0,0 +1,30 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Changes for long double by Ulrich Drepper <drepper@cygnus.com> + * Changes for x86-64 by Andreas Jaeger <aj@suse.de>=09 + * Public domain. + */ + +#include <machine/asm.h> + +ENTRY(__floorl) + fldt 8(%rsp) + + fstcw -4(%rsp) /* store fpu control word */ + + /* We use here %edx although only the low 1 bits are defined. + But none of the operations should care and they are faster + than the 16 bit operations. */ + movl $0x400,%edx /* round towards -oo */ + orl -4(%rsp),%edx + andl $0xf7ff,%edx + movl %edx,-8(%rsp) + fldcw -8(%rsp) /* load modified control word */ + + frndint /* round */ + + fldcw -4(%rsp) /* restore original control word */ + + ret +END (__floorl) +weak_alias (__floorl, floorl) |