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| author | Ulrich Drepper <drepper@redhat.com> | 2007-04-16 20:15:57 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2007-04-16 20:15:57 +0000 |
| commit | a8c79c4088e8c04e4297936efa0dee6c8e6e974d (patch) | |
| tree | eff01fb1edcb8dbd7a3b40feeffc2137a5a9a00a /sysdeps/ia64/fpu | |
| parent | 34317254127a027848079aabdd17efa1deb9279f (diff) | |
| download | glibc-a8c79c4088e8c04e4297936efa0dee6c8e6e974d.zip glibc-a8c79c4088e8c04e4297936efa0dee6c8e6e974d.tar.gz glibc-a8c79c4088e8c04e4297936efa0dee6c8e6e974d.tar.bz2 | |
[BZ #3427]
2007-03-22 Jakub Jelinek <jakub@redhat.com>
[BZ #3427]
* sysdeps/x86_64/fpu/feholdexcpt.c (feholdexcept): Clear all
exceptions both in SW and MXCSR.
* sysdeps/x86_64/fpu/feupdateenv.c: New file.
* sysdeps/x86_64/fpu/feenablxcpt.c (feenableexcept): Remove dead code.
* sysdeps/x86_64/fpu/fedisblxcpt.c (fedisableexcept): Likewise.
* sysdeps/i386/fpu/feholdexcpt.c (feholdexcept): Clear all exceptions
in MXCSR if SSE is available.
* sysdeps/i386/fpu/feupdateenv.c: Include unistd.h, dl-procinfo.h
and ldsodefs.h.
(__feupdateenv): Query exceptions also from MXCSR if SSE is available.
Fix comment typo.
* sysdeps/ia64/fpu/feholdexcpt.c (feholdexcept): Clear all exceptions.
Return 0 rather than 1.
* sysdeps/ia64/fpu/feupdateenv.c (feupdateenv): Fix comment typo.
Remove incorrect part of a comment. Fix argument to feraiseexcept.
* math/test-fenv.c (feholdexcept_tests): New function.
(main): Call it.
2007-01-05 Richard B. Kreckel <kreckel@ginac.de>
[BZ #3427]
* sysdeps/i386/fpu/feholdexcpt.c (feholdexcept): Clear all exceptions
in SW.
Diffstat (limited to 'sysdeps/ia64/fpu')
| -rw-r--r-- | sysdeps/ia64/fpu/feholdexcpt.c | 18 | ||||
| -rw-r--r-- | sysdeps/ia64/fpu/feupdateenv.c | 8 |
2 files changed, 16 insertions, 10 deletions
diff --git a/sysdeps/ia64/fpu/feholdexcpt.c b/sysdeps/ia64/fpu/feholdexcpt.c index 27c9a11..e50fbfa 100644 --- a/sysdeps/ia64/fpu/feholdexcpt.c +++ b/sysdeps/ia64/fpu/feholdexcpt.c @@ -1,5 +1,5 @@ /* Store current floating-point environment and clear exceptions. - Copyright (C) 1997, 1999, 2000, 2005 Free Software Foundation, Inc. + Copyright (C) 1997, 1999, 2000, 2005, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999 @@ -23,12 +23,20 @@ int feholdexcept (fenv_t *envp) { + fenv_t fpsr; /* Save the current state. */ - fegetenv (envp); + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); + *envp = fpsr; - /* set the trap disable bit */ - __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (*envp | FE_ALL_EXCEPT)); + /* Set the trap disable bits. */ + fpsr |= FE_ALL_EXCEPT; - return 1; + /* And clear the exception bits. */ + fpsr &= ~(fenv_t) (FE_ALL_EXCEPT << 13); + + __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr)); + + /* Success. */ + return 0; } libm_hidden_def (feholdexcept) diff --git a/sysdeps/ia64/fpu/feupdateenv.c b/sysdeps/ia64/fpu/feupdateenv.c index 544c384..72f1228 100644 --- a/sysdeps/ia64/fpu/feupdateenv.c +++ b/sysdeps/ia64/fpu/feupdateenv.c @@ -1,5 +1,5 @@ /* Install given floating-point environment and raise exceptions. - Copyright (C) 1997, 2000 Free Software Foundation, Inc. + Copyright (C) 1997, 2000, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999. @@ -32,10 +32,8 @@ feupdateenv (const fenv_t *envp) /* Install new environment. */ fesetenv (envp); - /* Raise the safed exception. Incidently for us the implementation - defined format of the values in objects of type fexcept_t is the - same as the ones specified using the FE_* constants. */ - feraiseexcept ((int) fpsr & FE_ALL_EXCEPT); + /* Raise the saved exceptions. */ + feraiseexcept ((int) (fpsr >> 13) & FE_ALL_EXCEPT); /* Success. */ return 0; |