aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/sparc
diff options
context:
space:
mode:
authorRoland McGrath <roland@gnu.org>2006-03-01 20:05:53 +0000
committerRoland McGrath <roland@gnu.org>2006-03-01 20:05:53 +0000
commitc4a4875d0fe42612280c62130b25d01a8d76fea8 (patch)
treefe1f0782d1b960f139048340ce354422052f8eb8 /sysdeps/sparc
parent996f5e601e84cfabe27d829e523e07c2ceffdd2e (diff)
downloadglibc-c4a4875d0fe42612280c62130b25d01a8d76fea8.tar
glibc-c4a4875d0fe42612280c62130b25d01a8d76fea8.tar.gz
glibc-c4a4875d0fe42612280c62130b25d01a8d76fea8.tar.bz2
glibc-c4a4875d0fe42612280c62130b25d01a8d76fea8.zip
* 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/sparc')
-rw-r--r--sysdeps/sparc/fpu/fraiseexcpt.c34
-rw-r--r--sysdeps/sparc/sparc32/fpu/libm-test-ulps9
2 files changed, 36 insertions, 7 deletions
diff --git a/sysdeps/sparc/fpu/fraiseexcpt.c b/sysdeps/sparc/fpu/fraiseexcpt.c
index 0d45ec82d2..cbb8be80ec 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 40d563971a..ccf53788a6 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