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| author | Roland McGrath <roland@gnu.org> | 2006-03-01 20:05:53 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 2006-03-01 20:05:53 +0000 |
| commit | c4a4875d0fe42612280c62130b25d01a8d76fea8 (patch) | |
| tree | fe1f0782d1b960f139048340ce354422052f8eb8 /sysdeps | |
| parent | 996f5e601e84cfabe27d829e523e07c2ceffdd2e (diff) | |
| download | glibc-c4a4875d0fe42612280c62130b25d01a8d76fea8.zip glibc-c4a4875d0fe42612280c62130b25d01a8d76fea8.tar.gz glibc-c4a4875d0fe42612280c62130b25d01a8d76fea8.tar.bz2 | |
* sysdeps/sparc/sparc32/fpu/libm-test-ulps: Update.
* sysdeps/sparc/fpu/fraiseexcpt.c (__feraiseexcept):
Use inline asm to make sure the compiler doesn't optimize insns out.
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/sparc/fpu/fraiseexcpt.c | 34 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc32/fpu/libm-test-ulps | 9 |
2 files changed, 36 insertions, 7 deletions
diff --git a/sysdeps/sparc/fpu/fraiseexcpt.c b/sysdeps/sparc/fpu/fraiseexcpt.c index 0d45ec8..cbb8be8 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 @@ -39,24 +39,44 @@ __feraiseexcept (int excepts) /* First: invalid exception. */ if ((FE_INVALID & excepts) != 0) - /* One example of a invalid operation is 0/0. */ - sink = c.zero / c.zero; + { + /* One example of a invalid operation is 0/0. */ + __asm ("" : "=e" (d) : "0" (c.zero)); + d /= c.zero; + __asm __volatile ("" : : "e" (d)); + } /* Next: division by zero. */ if ((FE_DIVBYZERO & excepts) != 0) - sink = c.one / c.zero; + { + __asm ("" : "=e" (d) : "0" (c.one)); + d /= c.zero; + __asm __volatile ("" : : "e" (d)); + } /* Next: overflow. */ if ((FE_OVERFLOW & excepts) != 0) - sink = c.max * c.max; + { + __asm ("" : "=e" (d) : "0" (c.max)); + d *= d; + __asm __volatile ("" : : "e" (d)); + } /* Next: underflow. */ if ((FE_UNDERFLOW & excepts) != 0) - sink = c.min / c.sixteen; + { + __asm ("" : "=e" (d) : "0" (c.min)); + d /= c.sixteen; + __asm __volatile ("" : : "e" (d)); + } /* Last: inexact. */ if ((FE_INEXACT & excepts) != 0) - sink = c.one / c.pi; + { + __asm ("" : "=e" (d) : "0" (c.one)); + d /= c.pi; + __asm __volatile ("" : : "e" (d)); + } /* Success. */ return 0; diff --git a/sysdeps/sparc/sparc32/fpu/libm-test-ulps b/sysdeps/sparc/sparc32/fpu/libm-test-ulps index 40d5639..ccf5378 100644 --- a/sysdeps/sparc/sparc32/fpu/libm-test-ulps +++ b/sysdeps/sparc/sparc32/fpu/libm-test-ulps @@ -465,6 +465,11 @@ ifloat: 2 ildouble: 1 ldouble: 1 +# exp2 +Test "exp2 (10) == 1024": +ildouble: 2 +ldouble: 2 + # expm1 Test "expm1 (0.75) == 1.11700001661267466854536981983709561": double: 1 @@ -1192,6 +1197,10 @@ ifloat: 2 ildouble: 1 ldouble: 1 +Function: "exp2": +ildouble: 2 +ldouble: 2 + Function: "expm1": double: 1 float: 1 |