diff options
| -rw-r--r-- | ChangeLog | 9 | ||||
| -rw-r--r-- | sysdeps/i386/fpu/s_expm1l.S | 7 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/clock_getres.c | 6 | ||||
| -rw-r--r-- | sysdeps/x86_64/fpu/s_expm1l.S | 7 |
4 files changed, 23 insertions, 6 deletions
diff --git a/ChangeLog b/ChangeLog index 2fd69a652a..c64970fa36 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,10 @@ +2008-08-05 Ulrich Drepper <drepper@redhat.com> + + * sysdeps/i386/fpu/s_expm1l.S: Simply use exp implementation for large + parameters. + * sysdeps/x86_64/fpu/s_expm1l.S: Likewise. + Patch by Denys Vlasenko <dvlasenk@redhat.com>. + 2008-08-03 Ulrich Drepper <drepper@redhat.com> * nscd/connections.c (main_loop_poll): Pass a buffer which is @@ -83,7 +90,7 @@ * sysdeps/posix/getaddrinfo.c (gaih_inet): Raise size of initial buffer passed to NSS functions. - * nscd/connections.c (nscd_init): Type if preprocessor directive. + * nscd/connections.c (nscd_init): Typo in preprocessor directive. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_PACCEPT): Define. diff --git a/sysdeps/i386/fpu/s_expm1l.S b/sysdeps/i386/fpu/s_expm1l.S index 2dc379b790..b69b22bc62 100644 --- a/sysdeps/i386/fpu/s_expm1l.S +++ b/sysdeps/i386/fpu/s_expm1l.S @@ -1,5 +1,5 @@ /* ix87 specific implementation of exp(x)-1. - Copyright (C) 1996, 1997, 2002, 2005 Free Software Foundation, Inc. + Copyright (C) 1996, 1997, 2002, 2005, 2008 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>. @@ -48,6 +48,11 @@ l2e: .tfloat 1.442695040888963407359924681002 .text ENTRY(__expm1l) + movzwl 4+8(%esp), %eax // load sign bit and 15-bit exponent + xorb $0x80, %ah // invert sign bit (now 1 is "positive") + cmpl $0xc006, %eax // is num positive and exp >= 6 (number is >= 128.0)? + jae __ieee754_expl // (if num is denormal, it is at least >= 64.0) + fldt 4(%esp) // x fxam // Is NaN or +-Inf? fstsw %ax diff --git a/sysdeps/unix/sysv/linux/clock_getres.c b/sysdeps/unix/sysv/linux/clock_getres.c index 813d3ebbf9..581ff22c7c 100644 --- a/sysdeps/unix/sysv/linux/clock_getres.c +++ b/sysdeps/unix/sysv/linux/clock_getres.c @@ -1,5 +1,5 @@ /* clock_getres -- Get the resolution of a POSIX clockid_t. Linux version. - Copyright (C) 2003,2004,2005,2006 Free Software Foundation, Inc. + Copyright (C) 2003,2004,2005,2006, 2008 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 @@ -121,7 +121,7 @@ maybe_syscall_getres_cpu (clockid_t clock_id, struct timespec *res) return 0; e = INTERNAL_SYSCALL_ERRNO (r, err); -# ifndef __ASSUME_POSIX_TIMERS +# ifndef __ASSUME_POSIX_TIMERS if (e == ENOSYS) { __libc_missing_posix_timers = 1; @@ -129,7 +129,7 @@ maybe_syscall_getres_cpu (clockid_t clock_id, struct timespec *res) e = EINVAL; } else -# endif +# endif { if (e == EINVAL) { diff --git a/sysdeps/x86_64/fpu/s_expm1l.S b/sysdeps/x86_64/fpu/s_expm1l.S index b4f5a3efda..05a1bfcce1 100644 --- a/sysdeps/x86_64/fpu/s_expm1l.S +++ b/sysdeps/x86_64/fpu/s_expm1l.S @@ -1,5 +1,5 @@ /* ix87 specific implementation of exp(x)-1. - Copyright (C) 1996, 1997, 2001, 2002 Free Software Foundation, Inc. + Copyright (C) 1996, 1997, 2001, 2002, 2008 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>. @@ -48,6 +48,11 @@ l2e: .tfloat 1.442695040888963407359924681002 .text ENTRY(__expm1l) + movzwl 8+8(%rsp), %eax // load sign bit and 15-bit exponent + xorb $0x80, %ah // invert sign bit (now 1 is "positive") + cmpl $0xc006, %eax // is num positive and exp >= 6 (number is >= 128.0)? + jae __ieee754_expl // (if num is denormal, it is at least >= 64.0) + fldt 8(%rsp) // x fxam // Is NaN or +-Inf? fstsw %ax |