wasm2js: avoid some slow operations when not optimizing (#2082)

Without this PR, wasm2js0.test_printf in emscripten took an extremely long time to compile.

1 files changed, 18 insertions, 10 deletions

diff --git a/test/wasm2js/br.2asm.js b/test/wasm2js/br.2asm.js
index ff5270db0..f02b0a154 100644
--- a/test/wasm2js/br.2asm.js
+++ b/test/wasm2js/br.2asm.js
@@ -115,8 +115,10 @@ function asmFunc(global, env, buffer) {
  function $13() {
   var $0 = 0, $1_1 = 0, $3_1 = 0;
   block : {
-   $0 = 3;
-   break block;
+   loop_in : while (1) {
+    $0 = 3;
+    break block;
+   };
   }
   return $0 | 0;
  }
@@ -124,9 +126,11 @@ function asmFunc(global, env, buffer) {
  function $14() {
   var $0 = 0, $1_1 = 0, $3_1 = 0;
   block : {
-   dummy();
-   $0 = 4;
-   break block;
+   loop_in : while (1) {
+    dummy();
+    $0 = 4;
+    break block;
+   };
   }
   return $0 | 0;
  }
@@ -134,9 +138,11 @@ function asmFunc(global, env, buffer) {
  function $15() {
   var $0 = 0;
   block : {
-   dummy();
-   $0 = 5;
-   break block;
+   loop_in : while (1) {
+    dummy();
+    $0 = 5;
+    break block;
+   };
   }
   return $0 | 0;
  }
@@ -505,8 +511,10 @@ function asmFunc(global, env, buffer) {
  function $54() {
   var $0 = 0;
   block : {
-   $0 = 8;
-   break block;
+   block0 : {
+    $0 = 8;
+    break block;
+   }
   }
   return 1 + $0 | 0 | 0;
  }