diff options
Diffstat (limited to 'sysdeps/sparc/fpu/fraiseexcpt.c')
| -rw-r--r-- | sysdeps/sparc/fpu/fraiseexcpt.c | 34 |
1 files changed, 7 insertions, 27 deletions
diff --git a/sysdeps/sparc/fpu/fraiseexcpt.c b/sysdeps/sparc/fpu/fraiseexcpt.c index cbb8be80ec..0d45ec82d2 100644 --- a/sysdeps/sparc/fpu/fraiseexcpt.c +++ b/sysdeps/sparc/fpu/fraiseexcpt.c @@ -25,12 +25,12 @@ int __feraiseexcept (int excepts) { + static volatile double sink; static const struct { double zero, one, max, min, sixteen, pi; } c = { 0.0, 1.0, DBL_MAX, DBL_MIN, 16.0, M_PI }; - double d; /* Raise exceptions represented by EXPECTS. But we must raise only one signal at a time. It is important the if the overflow/underflow @@ -39,44 +39,24 @@ __feraiseexcept (int excepts) /* First: invalid exception. */ if ((FE_INVALID & excepts) != 0) - { - /* One example of a invalid operation is 0/0. */ - __asm ("" : "=e" (d) : "0" (c.zero)); - d /= c.zero; - __asm __volatile ("" : : "e" (d)); - } + /* One example of a invalid operation is 0/0. */ + sink = c.zero / c.zero; /* Next: division by zero. */ if ((FE_DIVBYZERO & excepts) != 0) - { - __asm ("" : "=e" (d) : "0" (c.one)); - d /= c.zero; - __asm __volatile ("" : : "e" (d)); - } + sink = c.one / c.zero; /* Next: overflow. */ if ((FE_OVERFLOW & excepts) != 0) - { - __asm ("" : "=e" (d) : "0" (c.max)); - d *= d; - __asm __volatile ("" : : "e" (d)); - } + sink = c.max * c.max; /* Next: underflow. */ if ((FE_UNDERFLOW & excepts) != 0) - { - __asm ("" : "=e" (d) : "0" (c.min)); - d /= c.sixteen; - __asm __volatile ("" : : "e" (d)); - } + sink = c.min / c.sixteen; /* Last: inexact. */ if ((FE_INEXACT & excepts) != 0) - { - __asm ("" : "=e" (d) : "0" (c.one)); - d /= c.pi; - __asm __volatile ("" : : "e" (d)); - } + sink = c.one / c.pi; /* Success. */ return 0; |