SKIP_STACK_IN_SMALL option

1 files changed, 2 insertions, 5 deletions

diff --git a/src/runtime.js b/src/runtime.js
index 0b809d6b..c99d9d6f 100644
--- a/src/runtime.js
+++ b/src/runtime.js
@@ -30,10 +30,7 @@ RuntimeGenerator = {
   },
 
   stackEnter: function(initial) {
-    if (initial === 0) return ''; // Note that we don't even push the stack! This is faster, but
-                                  // means that we don't clear stack allocations done in this function
-                                  // until the parent unwinds its stack. So potentially if we are in
-                                  // a loop, we can use a lot of memory.
+    if (initial === 0 && SKIP_STACK_IN_SMALL) return '';
     var ret = 'var __stackBase__  = STACKTOP; STACKTOP += ' + initial;
     if (ASSERTIONS) {
       ret += '; assert(STACKTOP < STACK_MAX)';
@@ -45,7 +42,7 @@ RuntimeGenerator = {
   },
 
   stackExit: function(initial) {
-    if (initial === 0) return ''; // See comment in stackEnter
+    if (initial === 0 && SKIP_STACK_IN_SMALL) return '';
     var ret = '';
     if (SAFE_HEAP) {
       ret += 'for (var i = __stackBase__; i < STACKTOP; i++) SAFE_HEAP_CLEAR(i);';