diff options
Diffstat (limited to 'libc/sysdeps/powerpc/fpu/feupdateenv.c')
| -rw-r--r-- | libc/sysdeps/powerpc/fpu/feupdateenv.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/libc/sysdeps/powerpc/fpu/feupdateenv.c b/libc/sysdeps/powerpc/fpu/feupdateenv.c index 567cc6228..66f282639 100644 --- a/libc/sysdeps/powerpc/fpu/feupdateenv.c +++ b/libc/sysdeps/powerpc/fpu/feupdateenv.c @@ -1,6 +1,5 @@ /* Install given floating-point environment and raise exceptions. - Copyright (C) 1997, 1999, 2000, 2001, 2007, 2008, 2010 - Free Software Foundation, Inc. + Copyright (C) 1997-2013 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. @@ -38,14 +37,14 @@ __feupdateenv (const fenv_t *envp) unchanged. */ new.l[1] = (old.l[1] & 0x1FFFFF00) | (new.l[1] & 0x1FF80FFF); - /* If the old env has no eabled exceptions and the new env has any enabled + /* If the old env has no enabled exceptions and the new env has any enabled exceptions, then unmask SIGFPE in the MSR FE0/FE1 bits. This will put the hardware into "precise mode" and may cause the FPU to run slower on some hardware. */ if ((old.l[1] & _FPU_MASK_ALL) == 0 && (new.l[1] & _FPU_MASK_ALL) != 0) (void)__fe_nomask_env (); - /* If the old env had any eabled exceptions and the new env has no enabled + /* If the old env had any enabled exceptions and the new env has no enabled exceptions, then mask SIGFPE in the MSR FE0/FE1 bits. This may allow the FPU to run faster because it always takes the default action and can not generate SIGFPE. */ |