1 files changed, 1 insertions, 1 deletions
diff --git a/emcc b/emcc
index c2d3181d..40b3d206 100755
--- a/emcc
+++ b/emcc
@@ -1195,7 +1195,7 @@ try:
 
     js_optimizer_queue += [get_eliminate(), 'simplifyExpressionsPre']
 
-    if shared.Settings.RELOOP:
+    if shared.Settings.RELOOP and not shared.Settings.ASM_JS:
       js_optimizer_queue += ['optimizeShiftsAggressive', get_eliminate()] # aggressive shifts optimization requires loops, it breaks on switches
 
   if closure: