only minify globals when relooping

emcc

@@ -1553,7 +1553,7 @@ try:
     js_optimizer_queue += ['registerize']
 
   if opt_level > 0:
-    if debug_level < 2 and shared.Settings.ASM_JS: js_optimizer_queue += ['minifyGlobals']
+    if debug_level < 2 and shared.Settings.ASM_JS and shared.Settings.RELOOP: js_optimizer_queue += ['minifyGlobals']
     if debug_level == 0: js_optimizer_queue += ['minifyWhitespace']
 
   if closure and shared.Settings.ASM_JS: 

tools/js_optimizer.py

@@ -131,7 +131,7 @@ def run_on_js(filename, passes, js_engine, jcache):
   end_funcs = js.rfind(end_funcs_marker)
   #assert (start_funcs >= 0) == (end_funcs >= 0) == (not not suffix)
 
-  minify_globals = 'minifyGlobals' in passes
+  minify_globals = 'minifyGlobals' in passes and 'registerize' in passes and 'asm' in passes
   if minify_globals:
     passes = filter(lambda p: p != 'minifyGlobals', passes) # we will run it manually
     start_asm_marker = '// EMSCRIPTEN_START_ASM\n'