From 20e48678c8ac6e3962896aa87f6645cb1ec58922 Mon Sep 17 00:00:00 2001
From: Alon Zakai <alonzakai@gmail.com>
Date: Fri, 29 Nov 2013 12:10:27 -0800
Subject: [PATCH] do not emit empty postsets from js compiler for fastcomp
 output

---
 emscripten.py  | 10 +---------
 src/jsifier.js | 12 +++++++-----
 2 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/emscripten.py b/emscripten.py
index fc9bf42dc..b9abaca15 100755
--- a/emscripten.py
+++ b/emscripten.py
@@ -862,14 +862,6 @@ def emscript_fast(infile, settings, outfile, libraries=[], compiler_engine=None,
     if key in all_exported_functions or export_all or (export_bindings and key.startswith('_emscripten_bind')):
       exported_implemented_functions.add(key)
 
-  if settings.get('ASM_JS'):
-    # move postsets into the asm module
-    class PostSets: js = ''
-    def handle_post_sets(m):
-      PostSets.js = m.group(0)
-      return '\n'
-    pre = re.sub(r'function runPostSets[^}]+}', handle_post_sets, pre)
-
   #if DEBUG: outfile.write('// pre\n')
   outfile.write(pre)
   pre = None
@@ -1105,7 +1097,7 @@ function setTempRet%d(value) {
   value = value|0;
   tempRet%d = value;
 }
-''' % (i, i) for i in range(10)])] + [PostSets.js + '\n'] + funcs_js + ['''
+''' % (i, i) for i in range(10)])] + funcs_js + ['''
   %s
 
   return %s;
diff --git a/src/jsifier.js b/src/jsifier.js
index fb6c5ba84..0e6198c03 100644
--- a/src/jsifier.js
+++ b/src/jsifier.js
@@ -1747,11 +1747,13 @@ function JSify(data, functionsOnly, givenFunctions) {
           print('/* no memory initializer */'); // test purposes
         }
 
-        // Define postsets. These will be run in ATINIT, right before global initializers (which might need the postsets). We cannot
-        // run them now because the memory initializer might not have been applied yet.
-        print('function runPostSets() {\n');
-        print(itemsDict.GlobalVariablePostSet.map(function(item) { return item.JS }).join('\n'));
-        print('}\n');
+        if (phase !== 'glue') {
+          // Define postsets. These will be run in ATINIT, right before global initializers (which might need the postsets). We cannot
+          // run them now because the memory initializer might not have been applied yet.
+          print('function runPostSets() {\n');
+          print(itemsDict.GlobalVariablePostSet.map(function(item) { return item.JS }).join('\n'));
+          print('}\n');
+        }
 
         if (USE_TYPED_ARRAYS == 2) {
           if (!BUILD_AS_SHARED_LIB && !SIDE_MODULE) {