eliminate unneeded lines in eliminator

2 files changed, 5 insertions, 12 deletions

diff --git a/tools/eliminator/eliminator-test-output.js b/tools/eliminator/eliminator-test-output.js
index 05a6fb02..ccbd5e5f 100644
--- a/tools/eliminator/eliminator-test-output.js
+++ b/tools/eliminator/eliminator-test-output.js
@@ -1,18 +1,11 @@
 function f() {
-  
-  
-  
-  
   HEAP[123] = (GLOB[1] + 1) / 2;
 }
 function g(a1, a2) {
   var a = 1;
-  
   var c = a * 2 - 1;
-  
   a = c;
   foo(c);
-  
   foo(2);
   for (var i = 0; i < 5; i++) {
     var q = {
@@ -24,7 +17,6 @@ function g(a1, a2) {
   }
   var $0 = HEAP[5];
   MAYBE_HEAP[myglobal] = 123;
-  
   if ($0 < 0) {
     __label__ = 1;
   } else {
@@ -62,7 +54,6 @@ function h() {
     x = y ? x + 1 : 7;
     var x = -5;
   }
-  
   if (1) {
     otherGlob = glob;
     breakMe();
@@ -85,8 +76,6 @@ function strtok_part(b, j, f) {
   }
 }
 function py() {
-  
-  
   var $7 = HEAP[HEAP[__PyThreadState_Current] + 12] + 1;
   var $8 = HEAP[__PyThreadState_Current] + 12;
   HEAP[$8] = $7;
diff --git a/tools/eliminator/eliminator.coffee b/tools/eliminator/eliminator.coffee
index 874ae8d9..62e7ef82 100644
--- a/tools/eliminator/eliminator.coffee
+++ b/tools/eliminator/eliminator.coffee
@@ -395,7 +395,11 @@ main = ->
   # NOTE: For large file, can't generate code for the whole file in a single
   #       call due to the v8 memory limit. Writing out root children instead.
   for node in ast[1]
-    process.stdout.write uglify.uglify.gen_code node, GEN_OPTIONS
+    # Parse and recompile again, to remove unneeded lines
+    src2 = uglify.uglify.gen_code node, GEN_OPTIONS
+    node2 = uglify.parser.parse src2
+
+    process.stdout.write uglify.uglify.gen_code node2, GEN_OPTIONS
     process.stdout.write '\n'
   process.stdout.write generatedFunctionsLine + '\n'