Changeset 54ca3523 in mainline for test/fpu/fpu1/test.c

Timestamp:

2005-05-20T17:04:55Z (20 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

0cb0a72

Parents:

c01bd280

Message:

FPU work.
FPU code cleanup, add/fix copyright notices where needed.
Fix PI calculation to use double n instead of int n.
Make FPU test #1 even more stressing.

Re-enable O3 again.
Revert Makefile.config not to compile in any tests.

File:

• test/fpu/fpu1/test.c (modified) (2 diffs)

test/fpu/fpu1/test.c

@@ -44 +44 @@
 
 #define THREADS         150*2
+#define ATTEMPTS        10
 
 #define E_10e8  271828182
@@ -55 +56 @@
 static void e(void *data)
 {
+        int i;
         double e,d,le,f;
-        le=-1;
-        e=0;
-        f=1;
 
         waitq_sleep(&can_start);
 
-        for(d=1;e!=le;d*=f,f+=1) {
-                le=e;
-                e=e+1/d;
+        for (i = 0; i<ATTEMPTS; i++) {
+                le=-1;
+                e=0;
+                f=1;
+
+                for(d=1;e!=le;d*=f,f+=1) {
+                        le=e;
+                        e=e+1/d;
+                }
+
+                if((int)(100000000*e)!=E_10e8)
+                        panic("tid%d: e*10e8=%d\n", THREAD->tid, (int) 100000000*e);
         }
 
-        if((int)(100000000*e)==E_10e8) {
-                atomic_inc((int *) &threads_ok);
-        }
-        else
-                printf("tid%d: e*10e8=%d)\n", THREAD->tid, (int) 100000000*e);
+        atomic_inc((int *) &threads_ok);
 }
 
 static void pi(void *data)
 {
-        double lpi = -1, pi = 0;
-        double ab, ad;
-        int n;
+        int i;
+        double lpi, pi;
+        double n, ab, ad;
 
         waitq_sleep(&can_start);
 
-        for (n=2, ab = sqrt(2); lpi != pi; n *= 2, ab = ad) {
-                double sc, cd;
 
-                sc = sqrt(1 - (ab*ab/4));
-                cd = 1 - sc;
-                ad = sqrt(ab*ab/4 + cd*cd);
-                lpi = pi;
-                pi = 2 * n * ad;
-        }
+        for (i = 0; i<ATTEMPTS; i++) {
+                lpi = -1;
+                pi = 0;
 
-        if((int)(100000000*pi)==PI_10e8) {
-                atomic_inc((int *) &threads_ok);
+                for (n=2, ab = sqrt(2); lpi != pi; n *= 2, ab = ad) {
+                        double sc, cd;
+
+                        sc = sqrt(1 - (ab*ab/4));
+                        cd = 1 - sc;
+                        ad = sqrt(ab*ab/4 + cd*cd);
+                        lpi = pi;
+                        pi = 2 * n * ad;
+                }
+
+                if((int)(100000000*pi)!=PI_10e8)
+                        panic("tid%d: pi*10e8=%d\n", THREAD->tid, (int) 100000000*pi);
         }
-        else
-                printf("tid%d: pi*10e8=%d)\n", THREAD->tid, (int) 100000000*pi);
+
+        atomic_inc((int *) &threads_ok);
 }