let shiftOptimizer either replace the original variable, or keep it and add a new shifted variable

1 files changed, 33 insertions, 29 deletions

diff --git a/tools/test-js-optimizer-t2-output.js b/tools/test-js-optimizer-t2-output.js
index 04f1d0f4..ea384e07 100644
--- a/tools/test-js-optimizer-t2-output.js
+++ b/tools/test-js-optimizer-t2-output.js
@@ -1,38 +1,42 @@
 function shifty($id) {
-  $id >>= 2;
-  q(HEAP32[$id]);
-  q(HEAP32[$id + 10]);
-  q(HEAP32[$id + 20]);
-  q(HEAP32[(unknown1 + unknown2 >> 2) + $id]);
-  q(HEAP32[(unknown1 + unknown2 >> 2) + $id]);
+  var $id$s2 = $id >> 2;
+  q(HEAP32[$id$s2]);
+  q(HEAP32[$id$s2 + 10]);
+  q(HEAP32[$id$s2 + 20]);
+  q(HEAP32[(unknown1 + unknown2 >> 2) + $id$s2]);
+  q(HEAP32[(unknown1 + unknown2 >> 2) + $id$s2]);
   var localUnchanged1 = get(1), localUnchanged2 = get(1);
-  q(HEAP32[(localUnchanged1 + localUnchanged2 >> 2) + $id]);
-  q($id << 2 >> _something_);
-  q($id << 2 << _somethingElse_);
+  q(HEAP32[(localUnchanged1 + localUnchanged2 >> 2) + $id$s2]);
+  q($id >> _something_);
+  $id = q("..");
+  $id$s2 = $id >> 2;
+  q($id << _somethingElse_);
   pause(-1);
   var $id2;
   $id2 = get(54) >> 1;
   q(HEAP32[$id2]);
   q(HEAP32[$id2 + 20]);
   q(HEAP32[$id2 + 40]);
-  var $id3 = get(74) >> 3;
-  q(HEAP32[$id3]);
-  q(HEAP32[$id3 + 5]);
-  q(HEAP32[$id3 + 10]);
+  var $id3 = get(74), $id3$s3 = $id3 >> 3;
+  q(HEAP32[$id3$s3]);
+  q(HEAP32[$id3$s3 + 5]);
+  q(HEAP32[$id3$s3 + 10]);
+  q($id3);
   pause(0);
   var _idents = get("abc") >> 2;
   q(HEAP32[(HEAP32[_idents] >> 2) + 2]);
   q(HEAP32[(HEAP32[_idents] >> 2) + 2]);
   q(HEAP32[(HEAP32[_idents] >> 2) + 2]);
   pause(1);
-  var $sn_addr = get(12), $a_addr = get(999) >> 2;
+  var $sn_addr = get(12), $a_addr = get(999), $a_addr$s2 = $a_addr >> 2;
   var $i = get(112233);
-  q(HEAP32[($sn_addr - 1 << 1) + $a_addr + 1]);
-  q(HEAP32[($i - 1 << 1) + $a_addr + 1]);
-  $a_addr = $a_addr + 1;
-  q(HEAP32[($i << 1) + $a_addr]);
-  q(HEAP32[$a_addr + $i]);
-  q($a_addr, z($a_addr));
+  q(HEAP32[($sn_addr - 1 << 1) + $a_addr$s2 + 1]);
+  q(HEAP32[($i - 1 << 1) + $a_addr$s2 + 1]);
+  $a_addr = $a_addr + 4;
+  $a_addr$s2 = $a_addr >> 2;
+  q(HEAP32[($i << 1) + $a_addr$s2]);
+  q(HEAP32[$a_addr$s2 + $i]);
+  q($a_addr$s2, z($a_addr$s2));
   pause(2);
   var $level = HEAP[get(322) >> 2];
   var _dwt_norms_real = get("a") >> 2, $orient = get("cheez");
@@ -41,7 +45,7 @@ function shifty($id) {
   q(HEAP32[($level << 1) + _dwt_norms_real + $orient * 20 + 2]);
   pause(3);
   var $wavelet38 = get(38) >> 2;
-  $k = $a_addr << 2;
+  $k = $a_addr;
   q(HEAPF32[(HEAP32[$wavelet38] >> 2) + ($k << 2) + 2]);
   q(HEAPF32[(HEAP32[$wavelet38] >> 2) + ($k << 2) + 3]);
   q(HEAPF32[(HEAP32[$wavelet38] >> 2) + ($k << 2) + 100]);
@@ -59,15 +63,15 @@ function shifty($id) {
   q(1 << $idx << 1);
   print(INDENT + "Entering: _main" + "hi");
   pause(7);
-  var $tp = get("tp") >> 2;
-  q($tp);
-  q($tp);
-  q($tp);
-  HEAP32[$H400] = $tp << 2;
-  HEAP32[$tp << 2] = 5;
+  var $tp = get("tp"), $tp$s2 = $tp >> 2;
+  q($tp$s2);
+  q($tp$s2);
+  q($tp$s2);
+  HEAP32[$H400] = $tp;
   HEAP32[$tp] = 5;
-  HEAP32[HEAP[$tp]] = 5;
-  HEAP32[HEAP[$tp] >> 2] = 5;
+  HEAP32[$tp$s2] = 5;
+  HEAP32[HEAP[$tp$s2]] = 5;
+  HEAP32[HEAP[$tp$s2] >> 2] = 5;
   pause(7);
   q(go());
   q(go() >> 8 << 8);