--- a/js/src/jstracer.cpp
+++ b/js/src/jstracer.cpp
@@ -1973,17 +1973,16 @@ js_IsLoopEdge(jsbytecode* pc, jsbytecode
     return false;
 }
 
 /* Promote slots if necessary to match the called tree' type map and report error if thats
    impossible. */
 JS_REQUIRES_STACK bool
 TraceRecorder::adjustCallerTypes(Fragment* f)
 {
-    JSTraceMonitor* tm = traceMonitor;
     uint16* gslots = treeInfo->globalSlots->data();
     unsigned ngslots = treeInfo->globalSlots->length();
     JS_ASSERT(ngslots == treeInfo->nGlobalTypes());
     TreeInfo* ti = (TreeInfo*)f->vmprivate;
     bool ok = true;
     uint8* map = ti->globalTypeMap();
     uint8* m = map;
     FORALL_GLOBAL_SLOTS(cx, ngslots, gslots, 
@@ -2637,17 +2636,16 @@ TraceRecorder::closeLoop(JSTraceMonitor*
                         FramePCOffset(cx->fp));)
     return true;
 }
 
 JS_REQUIRES_STACK void
 TraceRecorder::joinEdgesToEntry(Fragmento* fragmento, Fragment* peer_root)
 {
     if (fragment->kind == LoopTrace) {
-        JSTraceMonitor* tm = traceMonitor;
         TreeInfo* ti;
         Fragment* peer;
         uint8* t1, *t2;
         UnstableExit* uexit, **unext;
         uint32* stackDemotes = (uint32*)alloca(sizeof(uint32) * treeInfo->nStackTypes);
         uint32* globalDemotes = (uint32*)alloca(sizeof(uint32) * treeInfo->nGlobalTypes());
 
         for (peer = peer_root; peer != NULL; peer = peer->peer) {

--- a/js/src/trace-test.js
+++ b/js/src/trace-test.js
@@ -2482,17 +2482,17 @@ function testWeirdDateParse() {
 }
 testWeirdDateParse.expected = "11,17,2008,11,17,2008,11,17,2008,11,17,2008,11,17,2008";
 testWeirdDateParse.jitstats = {
     recorderStarted: 7,
     recorderAborted: 1,
     traceCompleted: 6,
     traceTriggered: 14,
     unstableLoopVariable: 3,
-    noCompatInnerTrees: 1
+    noCompatInnerTrees: 0
 };
 test(testWeirdDateParse);
 
 function testUndemotableBinaryOp() {
     var out = [];
     for (let j = 0; j < 5; ++j) { out.push(6 - ((void 0) ^ 0x80000005)); }
     return out.join(",");
 }