fix simplyExpressions bug with removing too many |0s

1 files changed, 45 insertions, 1 deletions

diff --git a/tools/test-js-optimizer-asm-pre.js b/tools/test-js-optimizer-asm-pre.js
index 6c9e64c1..3042ef66 100644
--- a/tools/test-js-optimizer-asm-pre.js
+++ b/tools/test-js-optimizer-asm-pre.js
@@ -5,4 +5,48 @@ function a() {
   f(347 | 12);
   f(347 & 12);
 }
-// EMSCRIPTEN_GENERATED_FUNCTIONS: ["a"]
+function b($this, $__n) {
+  $this = $this | 0;
+  $__n = $__n | 0;
+  var $4 = 0, $5 = 0, $10 = 0, $13 = 0, $14 = 0, $15 = 0, $23 = 0, $30 = 0, $38 = 0, $40 = 0;
+  if (($__n | 0) == 0) {
+    return;
+  }
+  $4 = $this;
+  $5 = HEAP8[$4 & 16777215] | 0;
+  if (($5 & 1) << 24 >> 24 == 0) {
+    $14 = 10;
+    $13 = $5;
+  } else {
+    $10 = HEAP32[(($this | 0) & 16777215) >> 2] | 0;
+    $14 = ($10 & -2) - 1 | 0;
+    $13 = $10 & 255;
+  }
+  $15 = $13 & 255;
+  if (($15 & 1 | 0) == 0) {
+    $23 = $15 >>> 1;
+  } else {
+    $23 = HEAP32[(($this + 4 | 0) & 16777215) >> 2] | 0;
+  }
+  if (($14 - $23 | 0) >>> 0 < $__n >>> 0) {
+    __ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE9__grow_byEjjjjjj($this, $14, ($__n - $14 | 0) + $23 | 0, $23, $23);
+    $30 = HEAP8[$4 & 16777215] | 0;
+  } else {
+    $30 = $13;
+  }
+  if (($30 & 1) << 24 >> 24 == 0) {
+    $38 = $this + 1 | 0;
+  } else {
+    $38 = HEAP32[(($this + 8 | 0) & 16777215) >> 2] | 0;
+  }
+  _memset($38 + $23 | 0 | 0 | 0, 0 | 0 | 0, $__n | 0 | 0, 1 | 0 | 0, 1213141516);
+  $40 = $23 + $__n | 0;
+  if (((HEAP8[$4 & 16777215] | 0) & 1) << 24 >> 24 == 0) {
+    HEAP8[$4 & 16777215] = $40 << 1 & 255;
+  } else {
+    HEAP32[(($this + 4 | 0) & 16777215) >> 2] = $40;
+  }
+  HEAP8[($38 + $40 | 0) & 16777215] = 0;
+  return;
+}
+// EMSCRIPTEN_GENERATED_FUNCTIONS: ["a", "b"]