1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/asm.js/testJumpRange.js b/js/src/jit-test/tests/asm.js/testJumpRange.js
new file mode 100644
index 0000000000..10e37752de
--- /dev/null
+++ b/js/src/jit-test/tests/asm.js/testJumpRange.js
@@ -0,0 +1,26 @@
+load(libdir + "asm.js");
+load(libdir + "asserts.js");
+
+var fatFunc = USE_ASM + '\n';
+for (var i = 0; i < 100; i++)
+    fatFunc += "function f" + i + "() { return ((f" + (i+1) + "()|0)+1)|0 }\n";
+fatFunc += "function f100() { return 42 }\n";
+fatFunc += "return f0";
+
+for (let threshold of [0, 50, 100, 5000, -1]) {
+    setJitCompilerOption("jump-threshold", threshold);
+
+    assertEq(asmCompile(
+        USE_ASM + `
+            function h() { return ((g()|0)+2)|0 }
+            function g() { return ((f()|0)+1)|0 }
+            function f() { return 42 }
+            return h
+        `)()(), 45);
+
+    enableGeckoProfiling();
+    asmLink(asmCompile(USE_ASM + 'function f() {} function g() { f() } function h() { g() } return h'))();
+    disableGeckoProfiling();
+
+    assertEq(asmCompile(fatFunc)()(), 142);
+}