diff options
Diffstat (limited to 'sysdeps/powerpc/fpu/fesetenv.c')
| -rw-r--r-- | sysdeps/powerpc/fpu/fesetenv.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/sysdeps/powerpc/fpu/fesetenv.c b/sysdeps/powerpc/fpu/fesetenv.c index 5a0c742ffe..fa81d78211 100644 --- a/sysdeps/powerpc/fpu/fesetenv.c +++ b/sysdeps/powerpc/fpu/fesetenv.c @@ -1,5 +1,6 @@ /* Install given floating-point environment. - Copyright (C) 1997,99,2000,01,02,07 Free Software Foundation, Inc. + Copyright (C) 1997, 1999, 2000, 2001, 2007, 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 @@ -18,8 +19,11 @@ 02111-1307 USA. */ #include <fenv_libc.h> +#include <fpu_control.h> #include <bp-sym.h> +#define _FPU_MASK_ALL (_FPU_MASK_ZM | _FPU_MASK_OM | _FPU_MASK_UM | _FPU_MASK_XM | _FPU_MASK_IM) + int __fesetenv (const fenv_t *envp) { @@ -29,18 +33,18 @@ __fesetenv (const fenv_t *envp) new.fenv = *envp; old.fenv = fegetenv_register (); - /* If the old env has no eabled 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] & 0x000000F8) == 0 && (new.l[1] & 0x000000F8) != 0) + /* 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. */ - if ((old.l[1] & 0x000000F8) != 0 && (new.l[1] & 0x000000F8) == 0) + if ((old.l[1] & _FPU_MASK_ALL) != 0 && (new.l[1] & _FPU_MASK_ALL) == 0) (void)__fe_mask_env (); fesetenv_register (*envp); |