1 files changed, 53 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/asm.js/bug1126251.js b/js/src/jit-test/tests/asm.js/bug1126251.js
new file mode 100644
index 000000000..8470a9772
--- /dev/null
+++ b/js/src/jit-test/tests/asm.js/bug1126251.js
@@ -0,0 +1,53 @@
+load(libdir + "asm.js");
+
+// Bug 1126251
+var v = asmLink(asmCompile('global', `
+    "use asm";
+    var frd = global.Math.fround;
+    function e() {
+        var x = frd(.1e+71);
+        x = frd(x / x);
+        return +x;
+    }
+    return e;
+`), this)();
+
+assertEq(v, NaN);
+
+if (!isSimdAvailable() || typeof SIMD === 'undefined') {
+    quit(0);
+}
+
+var v = asmLink(asmCompile('global', `
+    "use asm";
+    var frd = global.Math.fround;
+    var Float32x4 = global.SIMD.Float32x4;
+    var splat = Float32x4.splat;
+    var ext = Float32x4.extractLane;
+    function e() {
+        var v = Float32x4(0,0,0,0);
+        var x = frd(0.);
+        v = splat(.1e+71);
+        x = ext(v,0);
+        x = frd(x / x);
+        return +x;
+    }
+    return e;
+`), this)();
+
+assertEq(v, NaN);
+
+// Bug 1130618: without GVN
+setJitCompilerOption("ion.gvn.enable", 0);
+var v = asmLink(asmCompile('global', `
+    "use asm";
+    var Float32x4 = global.SIMD.Float32x4;
+    var splat = Float32x4.splat;
+    var ext = Float32x4.extractLane;
+    function e() {
+        return +ext(splat(.1e+71),0);
+    }
+    return e;
+`), this)();
+
+assertEq(v, Infinity);