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-rw-r--r--js/src/jit-test/tests/basic/testBug878429.js9
1 files changed, 9 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/testBug878429.js b/js/src/jit-test/tests/basic/testBug878429.js
new file mode 100644
index 000000000..edbb0523b
--- /dev/null
+++ b/js/src/jit-test/tests/basic/testBug878429.js
@@ -0,0 +1,9 @@
+function negZeroMinusNegZero()
+{
+ var x = -0.0;
+ var y = -0.0;
+ return +(x - y);
+}
+
+assertEq(1 / negZeroMinusNegZero(), Infinity);
+assertEq(1 / negZeroMinusNegZero(), Infinity);