Bug 590785 - njconfig.i386_use_cmov is not initialized properly (r=njn,rreitmai)

--HG--
extra : convert_revision : 59a48227c291c53574b628358d9d581664848382

js/src/nanojit/njconfig.cpp

@@ -44,7 +44,7 @@
 namespace nanojit
 {
 #ifdef NANOJIT_IA32
-    static bool CheckForSSE2()
+    static int getCpuFeatures()
     {
         int features = 0;
     #if defined _MSC_VER
@@ -76,7 +76,7 @@ namespace nanojit
             : "%eax", "%ecx"
            );
     #endif
-        return (features & (1<<26)) != 0;
+        return features;
     }
 #endif
 
@@ -87,8 +87,9 @@ namespace nanojit
         cseopt = true;
 
 #ifdef NANOJIT_IA32
-        i386_sse2 = CheckForSSE2();
-        i386_use_cmov = true;
+        int const features = getCpuFeatures();
+        i386_sse2 = (features & (1<<26)) != 0;
+        i386_use_cmov = (features & (1<<15)) != 0;
         i386_fixed_esp = false;
 #endif