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-rw-r--r--js/src/jit-test/tests/ion/bug831087.js15
1 files changed, 15 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug831087.js b/js/src/jit-test/tests/ion/bug831087.js
new file mode 100644
index 000000000..fb672075d
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug831087.js
@@ -0,0 +1,15 @@
+function isNegZero(x) {
+ return x===0 && (1/x)===-Infinity;
+}
+
+try {
+ for (y = 0; y < 1; y++) {
+ x = y;
+ }
+} catch (e) {}
+
+function f() {
+ (x /= -9)
+}
+f()
+assertEq(isNegZero(this.x), true);