diff --git a/src/hb-ot-shape-complex-indic.cc b/src/hb-ot-shape-complex-indic.cc
index 34972f81e..1916638c5 100644
--- a/src/hb-ot-shape-complex-indic.cc
+++ b/src/hb-ot-shape-complex-indic.cc
@@ -1006,11 +1006,14 @@ initial_reordering_indic (const hb_ot_shape_plan_t *plan,
 			  hb_font_t *font,
 			  hb_buffer_t *buffer)
 {
+	if (!buffer->message (font, "start reordering indic initial"))
+		return;
   update_consonant_positions_indic (plan, font, buffer);
   insert_dotted_circles_indic (plan, font, buffer);
 
   foreach_syllable (buffer, start, end)
     initial_reordering_syllable_indic (plan, font->face, buffer, start, end);
+  (void)buffer->message (font, "end reordering indic initial");
 }
 
 static void
@@ -1485,8 +1488,11 @@ final_reordering_indic (const hb_ot_shape_plan_t *plan,
   unsigned int count = buffer->len;
   if (unlikely (!count)) return;
 
-  foreach_syllable (buffer, start, end)
-    final_reordering_syllable_indic (plan, buffer, start, end);
+	if (buffer->message (font, "start reordering indic final")) {
+	  foreach_syllable (buffer, start, end)
+	    final_reordering_syllable_indic (plan, buffer, start, end);
+	  buffer->message (font, "end reordering indic final");
+  }
 
   HB_BUFFER_DEALLOCATE_VAR (buffer, indic_category);
   HB_BUFFER_DEALLOCATE_VAR (buffer, indic_position);
diff --git a/src/hb-ot-shape-complex-khmer.cc b/src/hb-ot-shape-complex-khmer.cc
index 3da837489..133e05e96 100644
--- a/src/hb-ot-shape-complex-khmer.cc
+++ b/src/hb-ot-shape-complex-khmer.cc
@@ -389,11 +389,13 @@ reorder_khmer (const hb_ot_shape_plan_t *plan,
 	       hb_font_t *font,
 	       hb_buffer_t *buffer)
 {
-  insert_dotted_circles_khmer (plan, font, buffer);
-
-  foreach_syllable (buffer, start, end)
-    reorder_syllable_khmer (plan, font->face, buffer, start, end);
+  if (buffer->message (font, "start reordering khmer")) {
+    insert_dotted_circles_khmer (plan, font, buffer);
 
+    foreach_syllable (buffer, start, end)
+      reorder_syllable_khmer (plan, font->face, buffer, start, end);
+    (void)buffer->message (font, "end reordering khmer");
+  }
   HB_BUFFER_DEALLOCATE_VAR (buffer, khmer_category);
 }
 
diff --git a/src/hb-ot-shape-complex-myanmar.cc b/src/hb-ot-shape-complex-myanmar.cc
index 294ab3412..0ee0d9e4f 100644
--- a/src/hb-ot-shape-complex-myanmar.cc
+++ b/src/hb-ot-shape-complex-myanmar.cc
@@ -327,10 +327,13 @@ reorder_myanmar (const hb_ot_shape_plan_t *plan,
 		 hb_font_t *font,
 		 hb_buffer_t *buffer)
 {
-  insert_dotted_circles_myanmar (plan, font, buffer);
+  if (buffer->message (font, "start reordering myanmar")) {
+    insert_dotted_circles_myanmar (plan, font, buffer);
 
-  foreach_syllable (buffer, start, end)
-    reorder_syllable_myanmar (plan, font->face, buffer, start, end);
+    foreach_syllable (buffer, start, end)
+      reorder_syllable_myanmar (plan, font->face, buffer, start, end);
+    buffer->message (font, "end reordering myanmar");
+  }
 
   HB_BUFFER_DEALLOCATE_VAR (buffer, myanmar_category);
   HB_BUFFER_DEALLOCATE_VAR (buffer, myanmar_position);
diff --git a/src/hb-ot-shape-complex-use.cc b/src/hb-ot-shape-complex-use.cc
index 19a272ce1..6ed16cb34 100644
--- a/src/hb-ot-shape-complex-use.cc
+++ b/src/hb-ot-shape-complex-use.cc
@@ -517,10 +517,14 @@ reorder_use (const hb_ot_shape_plan_t *plan,
 	     hb_font_t *font,
 	     hb_buffer_t *buffer)
 {
-  insert_dotted_circles_use (plan, font, buffer);
+	if (buffer->message (font, "start reordering USE")) {
+	  insert_dotted_circles_use (plan, font, buffer);
 
-  foreach_syllable (buffer, start, end)
-    reorder_syllable_use (buffer, start, end);
+	  foreach_syllable (buffer, start, end)
+	    reorder_syllable_use (buffer, start, end);
+
+	  (void)buffer->message (font, "end reordering USE");
+  }
 
   HB_BUFFER_DEALLOCATE_VAR (buffer, use_category);
 }