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-rw-r--r--js/src/jit-test/tests/ion/bug747271.js18
1 files changed, 18 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug747271.js b/js/src/jit-test/tests/ion/bug747271.js
new file mode 100644
index 000000000..176a44a58
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug747271.js
@@ -0,0 +1,18 @@
+// vim: set ts=8 sts=4 et sw=4 tw=99:
+function randomFloat () {
+ // note that in fuzz-testing, this can used as the size of a buffer to allocate.
+ // so it shouldn't return astronomic values. The maximum value 10000000 is already quite big.
+ var fac = 1.0;
+ var r = Math.random();
+ if (r < 0.25)
+ fac = 10;
+ else if (r < 0.7)
+ fac = 10000000;
+ else if (r < 0.8)
+ fac = NaN;
+ return -0.5*fac + Math.random() * fac;
+}
+
+for (var i = 0; i < 100000; i++)
+ randomFloat();
+