summaryrefslogtreecommitdiffstats
path: root/js/src/jit-test/tests/sunspider/check-access-fannkuch.js
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
commit2aa4a82499d4becd2284cdb482213d541b8804dd (patch)
treeb80bf8bf13c3766139fbacc530efd0dd9d54394c /js/src/jit-test/tests/sunspider/check-access-fannkuch.js
parentInitial commit. (diff)
downloadfirefox-upstream.tar.xz
firefox-upstream.zip
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/tests/sunspider/check-access-fannkuch.js')
-rw-r--r--js/src/jit-test/tests/sunspider/check-access-fannkuch.js66
1 files changed, 66 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/sunspider/check-access-fannkuch.js b/js/src/jit-test/tests/sunspider/check-access-fannkuch.js
new file mode 100644
index 0000000000..d2bb98dcc3
--- /dev/null
+++ b/js/src/jit-test/tests/sunspider/check-access-fannkuch.js
@@ -0,0 +1,66 @@
+/* The Great Computer Language Shootout
+ http://shootout.alioth.debian.org/
+ contributed by Isaac Gouy */
+
+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) {
+ // write-out the first 30 permutations
+ if (check < 30){
+ var s = "";
+ for(var i=0; i<n; i++) s += (perm1[i]+1).toString();
+ check++;
+ }
+
+ 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 = 8;
+var ret = fannkuch(n);
+assertEq(ret, 22)