diff --git a/js/src/jit-test/tests/jaeger/bug563000/eif-call-typechange.js b/js/src/jit-test/tests/jaeger/bug563000/eif-call-typechange.js
index 238dbeedc340..25d52f017404 100644
--- a/js/src/jit-test/tests/jaeger/bug563000/eif-call-typechange.js
+++ b/js/src/jit-test/tests/jaeger/bug563000/eif-call-typechange.js
@@ -2,11 +2,9 @@
 setDebug(true);
 
 function callee() {
-  assertJit();
   evalInFrame(1, "x = 'success'");
 }
 function caller() {
-  assertJit();
   var x = ({ dana : "zuul" });
   callee();
   return x;
diff --git a/js/src/jit-test/tests/jaeger/bug563000/eif-call.js b/js/src/jit-test/tests/jaeger/bug563000/eif-call.js
index 73dd3674a6fd..f975eac6f033 100644
--- a/js/src/jit-test/tests/jaeger/bug563000/eif-call.js
+++ b/js/src/jit-test/tests/jaeger/bug563000/eif-call.js
@@ -2,11 +2,9 @@
 setDebug(true);
 
 function callee() {
-  assertJit();
   evalInFrame(1, "x = 'success'");
 }
 function caller() {
-  assertJit();
   var x = "failure";
   callee();
   return x;
diff --git a/js/src/jit-test/tests/jaeger/bug563000/eif-getter-typechange.js b/js/src/jit-test/tests/jaeger/bug563000/eif-getter-typechange.js
index 914b19c23e15..b1736c7db32c 100644
--- a/js/src/jit-test/tests/jaeger/bug563000/eif-getter-typechange.js
+++ b/js/src/jit-test/tests/jaeger/bug563000/eif-getter-typechange.js
@@ -3,7 +3,6 @@ setDebug(true);
 
 this.__defineGetter__("someProperty", function () { evalInFrame(1, "var x = 'success'"); });
 function caller(obj) {
-  assertJit();
   var x = ({ dana : 'zuul' });
   obj.someProperty;
   return x;
diff --git a/js/src/jit-test/tests/jaeger/bug563000/eif-getter.js b/js/src/jit-test/tests/jaeger/bug563000/eif-getter.js
index a1631ccd36cb..450d9079e81d 100644
--- a/js/src/jit-test/tests/jaeger/bug563000/eif-getter.js
+++ b/js/src/jit-test/tests/jaeger/bug563000/eif-getter.js
@@ -3,7 +3,6 @@ setDebug(true);
 
 this.__defineGetter__("someProperty", function () { evalInFrame(1, "x = 'success'"); });
 function caller(obj) {
-  assertJit();
   var x = "failure";
   obj.someProperty;
   return x;
diff --git a/js/src/jit-test/tests/jaeger/bug563000/eif-global-newvar.js b/js/src/jit-test/tests/jaeger/bug563000/eif-global-newvar.js
index 2d363878be46..b21a7976ed63 100644
--- a/js/src/jit-test/tests/jaeger/bug563000/eif-global-newvar.js
+++ b/js/src/jit-test/tests/jaeger/bug563000/eif-global-newvar.js
@@ -2,7 +2,6 @@
 setDebug(true);
 
 function callee() {
-  assertJit();
   evalInFrame(1, "var x = 'success'");
 }
 callee();
diff --git a/js/src/jit-test/tests/jaeger/bug563000/eif-trap-typechange.js b/js/src/jit-test/tests/jaeger/bug563000/eif-trap-typechange.js
index 4028293f08b8..2f11687a7938 100644
--- a/js/src/jit-test/tests/jaeger/bug563000/eif-trap-typechange.js
+++ b/js/src/jit-test/tests/jaeger/bug563000/eif-trap-typechange.js
@@ -3,11 +3,10 @@ setDebug(true);
 
 function nop(){}
 function caller(obj) {
-  assertJit();
   var x = ({ dana : "zuul" });
   return x;
 }
-// 0 is the pc of "assertJit()", we want the pc of "return x", 2 lines below.
-var pc = line2pc(caller, pc2line(caller, 0) + 2);
+// 0 is the pc of the first line, we want the pc of "return x", on the next line.
+var pc = line2pc(caller, pc2line(caller, 0) + 1);
 trap(caller, pc, "x = 'success'; nop()");
 assertEq(caller(this), "success");
diff --git a/js/src/jit-test/tests/jaeger/bug563000/eif-trap.js b/js/src/jit-test/tests/jaeger/bug563000/eif-trap.js
index d226635d54a4..4a968da00191 100644
--- a/js/src/jit-test/tests/jaeger/bug563000/eif-trap.js
+++ b/js/src/jit-test/tests/jaeger/bug563000/eif-trap.js
@@ -3,9 +3,8 @@ setDebug(true);
 
 function nop(){}
 function caller(obj) {
-  assertJit();
   var x = "failure";
   return x;
 }
-trap(caller, 20, "x = 'success'; nop()");
+trap(caller, 9 /* GETLOCAL x */, "x = 'success'; nop()");
 assertEq(caller(this), "success");
diff --git a/js/src/jit-test/tests/jaeger/testForOps.js b/js/src/jit-test/tests/jaeger/testForOps.js
index 5dfa261496ef..5704e070de07 100644
--- a/js/src/jit-test/tests/jaeger/testForOps.js
+++ b/js/src/jit-test/tests/jaeger/testForOps.js
@@ -12,10 +12,7 @@ function assertObjectsEqual(obj1, obj2) {
     assertEq(obj2.d, 12);
 }
 
-// :XXX: below calls to assertJit can throw us out of JIT code for some TI settings.
-
 function forName(obj) {
-    // assertJit();
     eval('');
     var r = { };
     for (x in obj)
@@ -24,7 +21,6 @@ function forName(obj) {
 }
 
 function forGlobalName(obj) {
-    // assertJit();
     var r = { };
     for (x in obj)
         r[x] = obj[x];
@@ -32,7 +28,6 @@ function forGlobalName(obj) {
 }
 
 function forProp(obj) {
-    // assertJit();
     var r = { };
     var c = { };
     for (c.x in obj)
@@ -41,7 +36,6 @@ function forProp(obj) {
 }
 
 function forElem(obj, x) {
-    // assertJit();
     var r = { };
     var c = { };
     for (c[x] in obj)
@@ -50,7 +44,6 @@ function forElem(obj, x) {
 }
 
 function forLocal(obj) {
-    // assertJit();
     var r = { };
     for (var x in obj)
         r[x] = obj[x];
@@ -58,7 +51,6 @@ function forLocal(obj) {
 }
 
 function forArg(obj, x) {
-    // assertJit();
     var r = { };
     for (x in obj)
         r[x] = obj[x];
diff --git a/js/src/jsshell.msg b/js/src/jsshell.msg
index 7962f44ee342..623a216ffebf 100644
--- a/js/src/jsshell.msg
+++ b/js/src/jsshell.msg
@@ -21,5 +21,4 @@ MSG_DEF(JSSMSG_TOO_MANY_ARGS,            9, 1, JSEXN_NONE, "{0}: too many argume
 MSG_DEF(JSSMSG_ASSERT_EQ_FAILED,        10, 2, JSEXN_NONE, "Assertion failed: got {0}, expected {1}")
 MSG_DEF(JSSMSG_ASSERT_EQ_FAILED_MSG,    11, 3, JSEXN_NONE, "Assertion failed: got {0}, expected {1}: {2}")
 MSG_DEF(JSSMSG_INVALID_ARGS,            12, 1, JSEXN_NONE, "{0}: invalid arguments")
-MSG_DEF(JSSMSG_ASSERT_JIT_FAILED,       13, 0, JSEXN_NONE, "unexpected failure to JIT")
-MSG_DEF(JSSMSG_BAD_ALIGNMENT,           14, 0, JSEXN_NONE, "serialized data must be 8-byte-aligned")
+MSG_DEF(JSSMSG_BAD_ALIGNMENT,           13, 0, JSEXN_NONE, "serialized data must be 8-byte-aligned")
diff --git a/js/src/shell/js.cpp b/js/src/shell/js.cpp
index b5b808423645..324cbe925d53 100644
--- a/js/src/shell/js.cpp
+++ b/js/src/shell/js.cpp
@@ -1425,27 +1425,6 @@ AssertEq(JSContext *cx, unsigned argc, jsval *vp)
     return true;
 }
 
-static JSBool
-AssertJit(JSContext *cx, unsigned argc, jsval *vp)
-{
-#ifdef JS_METHODJIT
-    if (JS_GetOptions(cx) & JSOPTION_METHODJIT) {
-        /*
-         * Ignore calls to this native when inference is enabled, with
-         * METHODJIT_ALWAYS recompilation can happen and discard the script's
-         * jitcode.
-         */
-        if (!cx->typeInferenceEnabled() && cx->hasfp() && !cx->fp()->jit()) {
-            JS_ReportErrorNumber(cx, my_GetErrorMessage, NULL, JSSMSG_ASSERT_JIT_FAILED);
-            return false;
-        }
-    }
-#endif
-
-    JS_SET_RVAL(cx, vp, JSVAL_VOID);
-    return true;
-}
-
 static UnrootedScript
 ValueToScript(JSContext *cx, jsval v, JSFunction **funp = NULL)
 {
@@ -3663,10 +3642,6 @@ static JSFunctionSpecWithHelp shell_functions[] = {
 "  Throw if the first two arguments are not the same (both +0 or both -0,\n"
 "  both NaN, or non-zero and ===)."),
 
-    JS_FN_HELP("assertJit", AssertJit, 0, 0,
-"assertJit()",
-"  Throw if the calling function failed to JIT."),
-
     JS_FN_HELP("setDebug", SetDebug, 1, 0,
 "setDebug(debug)",
 "  Set debug mode."),