Add fannkuch sunspider bench

vjeux · May 11, 2011 · e1ba145 · e1ba145
1 parent c6e77e7
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diff --git a/example/fannkuch.cpp b/example/fannkuch.cpp
@@ -0,0 +1,61 @@
+#include "../src/javascript_start.h"
+
+// www.webkit.org/perf/sunspider-0.9/access-fannkuch.html
+
+var fannkuch = function (var n) {
+   var check = 0;
+   var perm = Array(n);
+   var perm1 = Array(n);
+   var count = Array(n);
+   var maxPerm = Array(n);
+   var maxFlipsCount = 0;
+   var m = n - 1;
+
+   for (var i = 0; i < n; i++) perm1[i] = i;
+   var r = n;
+
+   while (true) {
+      while (r != 1) { count[r - 1] = r; r--; }
+      if (!(perm1[0] == 0 || perm1[m] == m)) {
+         for (var i = 0; i < n; i++) perm[i] = perm1[i];
+
+         var flipsCount = 0;
+         var k;
+
+         while (!((k = perm[0]) == 0)) {
+            var k2 = (k + 1) >> 1;
+            for (var i = 0; i < k2; i++) {
+               var temp = perm[i]; perm[i] = perm[k - i]; perm[k - i] = temp;
+            }
+            flipsCount++;
+         }
+
+         if (flipsCount > maxFlipsCount) {
+            maxFlipsCount = flipsCount;
+            for (var i = 0; i < n; i++) maxPerm[i] = perm1[i];
+         }
+      }
+
+      while (true) {
+         if (r == n) return maxFlipsCount;
+         var perm0 = perm1[0];
+         var i = 0;
+         while (i < r) {
+            var j = i + 1;
+            perm1[i] = perm1[j];
+            i = j;
+         }
+         perm1[r] = perm0;
+
+         count[r] = count[r] - 1;
+         if (count[r] > 0) break;
+         r++;
+      }
+   }
+};
+
+var n = 7;
+var ret = fannkuch(n);
+std::cout << fannkuch(n) << std::endl;
+
+#include "../src/javascript_end.h"
diff --git a/example/fannkuch.js b/example/fannkuch.js
@@ -0,0 +1,58 @@
+
+// www.webkit.org/perf/sunspider-0.9/access-fannkuch.html
+
+function fannkuch(n) {
+   var check = 0;
+   var perm = Array(n);
+   var perm1 = Array(n);
+   var count = Array(n);
+   var maxPerm = Array(n);
+   var maxFlipsCount = 0;
+   var m = n - 1;
+
+   for (var i = 0; i < n; i++) perm1[i] = i;
+   var r = n;
+
+   while (true) {
+      while (r != 1) { count[r - 1] = r; r--; }
+      if (!(perm1[0] == 0 || perm1[m] == m)) {
+         for (var i = 0; i < n; i++) perm[i] = perm1[i];
+
+         var flipsCount = 0;
+         var k;
+
+         while (!((k = perm[0]) == 0)) {
+            var k2 = (k + 1) >> 1;
+            for (var i = 0; i < k2; i++) {
+               var temp = perm[i]; perm[i] = perm[k - i]; perm[k - i] = temp;
+            }
+            flipsCount++;
+         }
+
+         if (flipsCount > maxFlipsCount) {
+            maxFlipsCount = flipsCount;
+            for (var i = 0; i < n; i++) maxPerm[i] = perm1[i];
+         }
+      }
+
+      while (true) {
+         if (r == n) return maxFlipsCount;
+         var perm0 = perm1[0];
+         var i = 0;
+         while (i < r) {
+            var j = i + 1;
+            perm1[i] = perm1[j];
+            i = j;
+         }
+         perm1[r] = perm0;
+
+         count[r] = count[r] - 1;
+         if (count[r] > 0) break;
+         r++;
+      }
+   }
+}
+
+var n = 7;
+var ret = fannkuch(n);
+console.log(ret);