diff options
Diffstat (limited to 'libc/sysdeps/ieee754/ldbl-96/s_fmal.c')
| -rw-r--r-- | libc/sysdeps/ieee754/ldbl-96/s_fmal.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libc/sysdeps/ieee754/ldbl-96/s_fmal.c b/libc/sysdeps/ieee754/ldbl-96/s_fmal.c index 76866fbfa..ca1e0905a 100644 --- a/libc/sysdeps/ieee754/ldbl-96/s_fmal.c +++ b/libc/sysdeps/ieee754/ldbl-96/s_fmal.c @@ -1,5 +1,5 @@ /* Compute x * y + z as ternary operation. - Copyright (C) 2010 Free Software Foundation, Inc. + Copyright (C) 2010-2012 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jakub Jelinek <jakub@redhat.com>, 2010. @@ -21,6 +21,7 @@ #include <math.h> #include <fenv.h> #include <ieee754.h> +#include <math_private.h> /* This implementation uses rounding to odd to avoid problems with double rounding. See a paper by Boldo and Melquiond: @@ -174,6 +175,8 @@ __fmal (long double x, long double y, long double z) if ((u.ieee.mantissa1 & 1) == 0) u.ieee.mantissa1 |= fetestexcept (FE_INEXACT) != 0; v.d = a1 + u.d; + /* Ensure the addition is not scheduled after fetestexcept call. */ + math_force_eval (v.d); int j = fetestexcept (FE_INEXACT) != 0; feupdateenv (&env); /* Ensure the following computations are performed in default rounding |