glibc/sysdeps/x86_64/fpu/s_floorl.S
Ulrich Drepper 5f93cd52f6 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.
2003-11-18 07:25:02 +00:00

31 lines
740 B
ArmAsm

/*
* 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)