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-rw-r--r--js/src/jit-test/tests/basic/testincops.js24
1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/testincops.js b/js/src/jit-test/tests/basic/testincops.js
new file mode 100644
index 000000000..85e36abe3
--- /dev/null
+++ b/js/src/jit-test/tests/basic/testincops.js
@@ -0,0 +1,24 @@
+var globalinc = 0;
+function testincops(n) {
+ var i = 0, o = {p:0}, a = [0];
+ n = 100;
+
+ for (i = 0; i < n; i++);
+ while (i-- > 0);
+ for (i = 0; i < n; ++i);
+ while (--i >= 0);
+
+ for (o.p = 0; o.p < n; o.p++) globalinc++;
+ while (o.p-- > 0) --globalinc;
+ for (o.p = 0; o.p < n; ++o.p) ++globalinc;
+ while (--o.p >= 0) globalinc--;
+
+ ++i; // set to 0
+ for (a[i] = 0; a[i] < n; a[i]++);
+ while (a[i]-- > 0);
+ for (a[i] = 0; a[i] < n; ++a[i]);
+ while (--a[i] >= 0);
+
+ return [++o.p, ++a[i], globalinc].toString();
+}
+assertEq(testincops(), "0,0,0");