* 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.

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