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authorAndreas Jaeger <aj@suse.de>2001-09-19 10:37:31 +0000
committerAndreas Jaeger <aj@suse.de>2001-09-19 10:37:31 +0000
commitc9cf6ddeebb7bb859a4c3a0af48f117d8193b578 (patch)
tree8e68d2b39d3fb0f02ba1326000af4af2a374e317 /sysdeps/x86_64/fpu/s_expm1l.S
parent71ad6ad2b57396efe8a3b9036b6646ed81216413 (diff)
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Update.
	* sysdeps/unix/sysv/linux/x86_64/Makefile: New file.
	* sysdeps/unix/sysv/linux/x86_64/Versions: New file.
	* sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/bits/mman.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/bits/stat.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/bits/statfs.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/bits/time.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/bits/types.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/brk.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/clone.S: New file.
	* sysdeps/unix/sysv/linux/x86_64/fstatfs64.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/ftruncate64.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/fxstat.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/fxstat64.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/getdents.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/getdents64.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/getrlimit64.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/gettimeofday.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/glob64.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/lxstat.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/lxstat64.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/mmap64.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/pread64.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/profil-counter.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/pwrite64.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/readdir.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/readdir64.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/readdir64_r.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/readdir_r.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/recv.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/register-dump.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/send.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/setrlimit64.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/sigaction.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/sigcontextinfo.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/sigpending.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/sigprocmask.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/sigsuspend.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/statfs64.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/sys/perm.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/sys/procfs.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/sys/reg.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/sys/ucontext.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/sys/user.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/syscall.S: New file.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list: New file.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.S: New file.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/time.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/truncate64.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/umount.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/vfork.S: New file.
	* sysdeps/unix/sysv/linux/x86_64/xstat.c: New file.
	* sysdeps/unix/sysv/linux/x86_64/xstat64.c: New file.
	* sysdeps/unix/x86_64/sysdep.S: New file.
	* sysdeps/unix/x86_64/sysdep.h: New file.
	* sysdeps/x86_64/Implies: New file.
	* sysdeps/x86_64/Makefile: New file.
	* sysdeps/x86_64/Versions: New file.
	* sysdeps/x86_64/__longjmp.S: New file.
	* sysdeps/x86_64/abort-instr.h: New file.
	* sysdeps/x86_64/atomicity.h: New file.
	* sysdeps/x86_64/bits/endian.h: New file.
	* sysdeps/x86_64/bits/setjmp.h: New file.
	* sysdeps/x86_64/bits/string.h: New file.
	* sysdeps/x86_64/bp-asm.h: New file.
	* sysdeps/x86_64/bsd-_setjmp.S: New file.
	* sysdeps/x86_64/bsd-setjmp.S: New file.
	* sysdeps/x86_64/dl-machine.h: New file.
	* sysdeps/x86_64/elf/initfini.c: New file.
	* sysdeps/x86_64/elf/start.S: New file.
	* sysdeps/x86_64/ffs.c: New file.
	* sysdeps/x86_64/ffsll.c: New file.
	* sysdeps/x86_64/fpu/bits/fenv.h: New file.
	* sysdeps/x86_64/fpu/bits/mathdef.h: New file.
	* sysdeps/x86_64/fpu/e_acosl.c: New file.
	* sysdeps/x86_64/fpu/e_atan2l.c: New file.
	* sysdeps/x86_64/fpu/e_exp2l.S: New file.
	* sysdeps/x86_64/fpu/e_expl.c: New file.
	* sysdeps/x86_64/fpu/e_fmodl.S: New file.
	* sysdeps/x86_64/fpu/e_log10l.S: New file.
	* sysdeps/x86_64/fpu/e_log2l.S: New file.
	* sysdeps/x86_64/fpu/e_logl.S: New file.
	* sysdeps/x86_64/fpu/e_powl.S: New file.
	* sysdeps/x86_64/fpu/e_rem_pio2l.c: New file.
	* sysdeps/x86_64/fpu/e_scalbl.S: New file.
	* sysdeps/x86_64/fpu/e_sqrtl.c: New file.
	* sysdeps/x86_64/fpu/fclrexcpt.c: New file.
	* sysdeps/x86_64/fpu/fedisblxcpt.c: New file.
	* sysdeps/x86_64/fpu/feenablxcpt.c: New file.
	* sysdeps/x86_64/fpu/fegetenv.c: New file.
	* sysdeps/x86_64/fpu/fegetexcept.c: New file.
	* sysdeps/x86_64/fpu/fegetround.c: New file.
	* sysdeps/x86_64/fpu/feholdexcpt.c: New file.
	* sysdeps/x86_64/fpu/fesetenv.c: New file.
	* sysdeps/x86_64/fpu/fesetround.c: New file.
	* sysdeps/x86_64/fpu/fgetexcptflg.c: New file.
	* sysdeps/x86_64/fpu/fraiseexcpt.c: New file.
	* sysdeps/x86_64/fpu/fsetexcptflg.c: New file.
	* sysdeps/x86_64/fpu/ftestexcept.c: New file.
	* sysdeps/x86_64/fpu/libm-test-ulps: New file.
	* sysdeps/x86_64/fpu/math_ldbl.h: New file.
	* sysdeps/x86_64/fpu/printf_fphex.c: New file.
	* sysdeps/x86_64/fpu/s_atanl.c: New file.
	* sysdeps/x86_64/fpu/s_cosl.S: New file.
	* sysdeps/x86_64/fpu/s_expm1l.S: New file.
	* sysdeps/x86_64/fpu/s_fpclassifyl.c: New file.
	* sysdeps/x86_64/fpu/s_isinfl.c: New file.
	* sysdeps/x86_64/fpu/s_isnanl.c: New file.
	* sysdeps/x86_64/fpu/s_log1pl.S: New file.
	* sysdeps/x86_64/fpu/s_logbl.c: New file.
	* sysdeps/x86_64/fpu/s_nextafterl.c: New file.
	* sysdeps/x86_64/fpu/s_nexttoward.c: New file.
	* sysdeps/x86_64/fpu/s_nexttowardf.c: New file.
	* sysdeps/x86_64/fpu/s_rintl.c: New file.
	* sysdeps/x86_64/fpu/s_significandl.c: New file.
	* sysdeps/x86_64/fpu/s_sincosl.S: New file.
	* sysdeps/x86_64/fpu/s_sinl.S: New file.
	* sysdeps/x86_64/fpu/s_tanl.S: New file.
	* sysdeps/x86_64/gmp-mparam.h: New file.
	* sysdeps/x86_64/hp-timing.c: New file.
	* sysdeps/x86_64/hp-timing.h: New file.
	* sysdeps/x86_64/htonl.S: New file.
	* sysdeps/x86_64/memusage.h: New file.
	* sysdeps/x86_64/setjmp.S: New file.
	* sysdeps/x86_64/soft-fp/sfp-machine.h: New file.
	* sysdeps/x86_64/stackinfo.h: New file.
	* sysdeps/x86_64/sysdep.h: New file.
	* sysdeps/unix/sysv/linux/x86_64/ldd-rewrite.sed: New file.
Diffstat (limited to 'sysdeps/x86_64/fpu/s_expm1l.S')
-rw-r--r--sysdeps/x86_64/fpu/s_expm1l.S83
1 files changed, 83 insertions, 0 deletions
diff --git a/sysdeps/x86_64/fpu/s_expm1l.S b/sysdeps/x86_64/fpu/s_expm1l.S
new file mode 100644
index 0000000000..fa40e05572
--- /dev/null
+++ b/sysdeps/x86_64/fpu/s_expm1l.S
@@ -0,0 +1,83 @@
+/* ix87 specific implementation of exp(x)-1.
+   Copyright (C) 1996, 1997, 2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+   Based on code by John C. Bowman <bowman@ipp-garching.mpg.de>.
+   Corrections by H.J. Lu (hjl@gnu.ai.mit.edu), 1997.
+
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+	/* Using: e^x - 1 = 2^(x * log2(e)) - 1 */
+
+#include <machine/asm.h>
+
+#ifdef __ELF__
+	.section .rodata
+#else
+	.text
+#endif
+	.align ALIGNARG(4)
+	ASM_TYPE_DIRECTIVE(minus1,@object)
+minus1:	.double -1.0
+	ASM_SIZE_DIRECTIVE(minus1)
+	ASM_TYPE_DIRECTIVE(one,@object)
+one:	.double 1.0
+	ASM_SIZE_DIRECTIVE(one)
+	ASM_TYPE_DIRECTIVE(l2e,@object)
+l2e:	.tfloat 1.442695040888963407359924681002
+	ASM_SIZE_DIRECTIVE(l2e)
+
+#ifdef PIC
+#define MO(op) op##(%rip)
+#else
+#define MO(op) op
+#endif
+
+	.text
+ENTRY(__expm1l)
+	fldt	8(%rsp)		// x
+	fxam			// Is NaN or +-Inf?
+	fstsw	%ax
+	movb	$0x45, %ch
+	andb	%ah, %ch
+	cmpb	$0x40, %ch
+	je	3f		// If +-0, jump.
+	cmpb	$0x05, %ch
+	je	2f		// If +-Inf, jump.
+
+	fldt	MO(l2e)		// log2(e) : x
+	fmulp			// log2(e)*x
+	fld	%st		// log2(e)*x : log2(e)*x
+	frndint			// int(log2(e)*x) : log2(e)*x
+	fsubr	%st, %st(1)	// int(log2(e)*x) : fract(log2(e)*x)
+	fxch			// fract(log2(e)*x) : int(log2(e)*x)
+	f2xm1			// 2^fract(log2(e)*x)-1 : int(log2(e)*x)
+	fscale			// 2^(log2(e)*x)-2^int(log2(e)*x) : int(log2(e)*x)
+	fxch			// int(log2(e)*x) : 2^(log2(e)*x)-2^int(log2(e)*x)
+	fldl	MO(one)		// 1 : int(log2(e)*x) : 2^(log2(e)*x)-2^int(log2(e)*x)
+	fscale			// 2^int(log2(e)*x) : int(log2(e)*x) : 2^(log2(e)*x)-2^int(log2(e)*x)
+	fsubrl	MO(one)		// 1-2^int(log2(e)*x) : int(log2(e)*x) : 2^(log2(e)*x)-2^int(log2(e)*x)
+	fstp	%st(1)		// 1-2^int(log2(e)*x) : 2^(log2(e)*x)-2^int(log2(e)*x)
+	fsubrp	%st, %st(1)	// 2^(log2(e)*x)
+	ret
+
+2:	testl	$0x200, %eax	// Test sign.
+	jz	3f		// If positive, jump.
+	fstp	%st
+	fldl	MO(minus1)	// Set result to -1.0.
+3:	ret
+END(__expm1l)
+weak_alias (__expm1l, expm1l)