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-rw-r--r--js/src/jit-test/tests/asm.js/testRangeAnalysis.js15
1 files changed, 15 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/asm.js/testRangeAnalysis.js b/js/src/jit-test/tests/asm.js/testRangeAnalysis.js
new file mode 100644
index 000000000..6418bc1b3
--- /dev/null
+++ b/js/src/jit-test/tests/asm.js/testRangeAnalysis.js
@@ -0,0 +1,15 @@
+// Bug 894781
+function m(stdlib)
+{
+ "use asm";
+ var abs = stdlib.Math.abs;
+ function f(d)
+ {
+ d = +d;
+ return (~~(5.0 - +abs(d)))|0;
+ }
+ return f;
+}
+var f = m(this);
+assertEq(f(0.2), 4);
+assertEq(f(NaN), 0);