MergeBlocks: canonicalize loop exit block position on the inside (#1736)

* move a loop exit block (block with a name, and one child which is the loop) into the loop in MergeBlocks, as that is better for other passes

1 files changed, 20 insertions, 20 deletions

diff --git a/test/emcc_hello_world.fromasm b/test/emcc_hello_world.fromasm
index f730a33e7..c243b2c8e 100644
--- a/test/emcc_hello_world.fromasm
+++ b/test/emcc_hello_world.fromasm
@@ -269,32 +269,32 @@
   (local $2 i32)
   (block $__rjto$1
    (block $__rjti$1
-    (block $__rjti$0
-     (loop $while-in
-      (br_if $__rjti$0
-       (i32.eq
-        (i32.load8_u offset=687
-         (get_local $1)
-        )
-        (get_local $0)
+    (loop $while-in
+     (if
+      (i32.ne
+       (i32.load8_u offset=687
+        (get_local $1)
        )
+       (get_local $0)
       )
-      (br_if $while-in
-       (i32.ne
-        (tee_local $1
-         (i32.add
-          (get_local $1)
-          (i32.const 1)
+      (block
+       (br_if $while-in
+        (i32.ne
+         (tee_local $1
+          (i32.add
+           (get_local $1)
+           (i32.const 1)
+          )
          )
+         (i32.const 87)
         )
+       )
+       (set_local $1
         (i32.const 87)
        )
+       (br $__rjti$1)
       )
      )
-     (set_local $1
-      (i32.const 87)
-     )
-     (br $__rjti$1)
     )
     (br_if $__rjti$1
      (get_local $1)
@@ -780,8 +780,8 @@
   )
   (block $__rjto$1
    (block $__rjti$1
-    (block $__rjti$0
-     (loop $while-in
+    (loop $while-in
+     (block $__rjti$0
       (if
        (i32.load
         (i32.const 16)