wasm2js: start to optionally optimize the JS (#2046)

Removes redundant | 0s and similar things. (Apparently closure compiler doesn't do that, so makes sense to do here.)

1 files changed, 46 insertions, 46 deletions

diff --git a/test/wasm2js/i64-add-sub.2asm.js b/test/wasm2js/i64-add-sub.2asm.js
index d27bbe3e4..babd4803c 100644
--- a/test/wasm2js/i64-add-sub.2asm.js
+++ b/test/wasm2js/i64-add-sub.2asm.js
@@ -39,7 +39,7 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$5 = r$hi;
   i64toi32_i32$5 = $5$hi;
   i64toi32_i32$3 = r;
-  return (i64toi32_i32$4 | 0) == (i64toi32_i32$3 | 0) & (i64toi32_i32$5 | 0) == (r$hi | 0) | 0 | 0;
+  return (i64toi32_i32$4 | 0) == (i64toi32_i32$3 | 0) & (i64toi32_i32$5 | 0) == (r$hi | 0);
  }
  
  function $2($0, $0$hi, $1_1, $1$hi, r, r$hi) {
@@ -63,7 +63,7 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$0 = i64toi32_i32$2 - i64toi32_i32$3 | 0;
   i64toi32_i32$2 = r$hi;
   i64toi32_i32$3 = r;
-  return (i64toi32_i32$0 | 0) == (i64toi32_i32$3 | 0) & (i64toi32_i32$5 | 0) == (i64toi32_i32$2 | 0) | 0 | 0;
+  return (i64toi32_i32$0 | 0) == (i64toi32_i32$3 | 0) & (i64toi32_i32$5 | 0) == (i64toi32_i32$2 | 0);
  }
  
  function legalstub$1($0, $1_1, $2_1, $3, $4, $5) {
@@ -81,16 +81,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$2 = $1_1;
   i64toi32_i32$1 = 0;
   i64toi32_i32$3 = 32;
-  i64toi32_i32$4 = i64toi32_i32$3 & 31 | 0;
-  if (32 >>> 0 <= (i64toi32_i32$3 & 63 | 0) >>> 0) {
+  i64toi32_i32$4 = i64toi32_i32$3 & 31;
+  if (32 >>> 0 <= (i64toi32_i32$3 & 63) >>> 0) {
    {
-    i64toi32_i32$1 = i64toi32_i32$2 << i64toi32_i32$4 | 0;
+    i64toi32_i32$1 = i64toi32_i32$2 << i64toi32_i32$4;
     $26 = 0;
    }
   } else {
    {
-    i64toi32_i32$1 = ((1 << i64toi32_i32$4 | 0) - 1 | 0) & (i64toi32_i32$2 >>> (32 - i64toi32_i32$4 | 0) | 0) | 0 | (i64toi32_i32$0 << i64toi32_i32$4 | 0) | 0;
-    $26 = i64toi32_i32$2 << i64toi32_i32$4 | 0;
+    i64toi32_i32$1 = (1 << i64toi32_i32$4) - 1 & i64toi32_i32$2 >>> 32 - i64toi32_i32$4 | i64toi32_i32$0 << i64toi32_i32$4;
+    $26 = i64toi32_i32$2 << i64toi32_i32$4;
    }
   }
   $10$hi = i64toi32_i32$1;
@@ -98,8 +98,8 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$0 = $7;
   i64toi32_i32$2 = $10$hi;
   i64toi32_i32$3 = $26;
-  i64toi32_i32$2 = i64toi32_i32$1 | i64toi32_i32$2 | 0;
-  $11 = i64toi32_i32$0 | i64toi32_i32$3 | 0;
+  i64toi32_i32$2 = i64toi32_i32$1 | i64toi32_i32$2;
+  $11 = i64toi32_i32$0 | i64toi32_i32$3;
   $11$hi = i64toi32_i32$2;
   i64toi32_i32$2 = 0;
   $13 = $2_1;
@@ -108,16 +108,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$1 = $3;
   i64toi32_i32$0 = 0;
   i64toi32_i32$3 = 32;
-  i64toi32_i32$4 = i64toi32_i32$3 & 31 | 0;
-  if (32 >>> 0 <= (i64toi32_i32$3 & 63 | 0) >>> 0) {
+  i64toi32_i32$4 = i64toi32_i32$3 & 31;
+  if (32 >>> 0 <= (i64toi32_i32$3 & 63) >>> 0) {
    {
-    i64toi32_i32$0 = i64toi32_i32$1 << i64toi32_i32$4 | 0;
+    i64toi32_i32$0 = i64toi32_i32$1 << i64toi32_i32$4;
     $27 = 0;
    }
   } else {
    {
-    i64toi32_i32$0 = ((1 << i64toi32_i32$4 | 0) - 1 | 0) & (i64toi32_i32$1 >>> (32 - i64toi32_i32$4 | 0) | 0) | 0 | (i64toi32_i32$2 << i64toi32_i32$4 | 0) | 0;
-    $27 = i64toi32_i32$1 << i64toi32_i32$4 | 0;
+    i64toi32_i32$0 = (1 << i64toi32_i32$4) - 1 & i64toi32_i32$1 >>> 32 - i64toi32_i32$4 | i64toi32_i32$2 << i64toi32_i32$4;
+    $27 = i64toi32_i32$1 << i64toi32_i32$4;
    }
   }
   $16$hi = i64toi32_i32$0;
@@ -125,8 +125,8 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$2 = $13;
   i64toi32_i32$1 = $16$hi;
   i64toi32_i32$3 = $27;
-  i64toi32_i32$1 = i64toi32_i32$0 | i64toi32_i32$1 | 0;
-  $17 = i64toi32_i32$2 | i64toi32_i32$3 | 0;
+  i64toi32_i32$1 = i64toi32_i32$0 | i64toi32_i32$1;
+  $17 = i64toi32_i32$2 | i64toi32_i32$3;
   $17$hi = i64toi32_i32$1;
   i64toi32_i32$1 = 0;
   $19 = $4;
@@ -135,16 +135,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$0 = $5;
   i64toi32_i32$2 = 0;
   i64toi32_i32$3 = 32;
-  i64toi32_i32$4 = i64toi32_i32$3 & 31 | 0;
-  if (32 >>> 0 <= (i64toi32_i32$3 & 63 | 0) >>> 0) {
+  i64toi32_i32$4 = i64toi32_i32$3 & 31;
+  if (32 >>> 0 <= (i64toi32_i32$3 & 63) >>> 0) {
    {
-    i64toi32_i32$2 = i64toi32_i32$0 << i64toi32_i32$4 | 0;
+    i64toi32_i32$2 = i64toi32_i32$0 << i64toi32_i32$4;
     $28 = 0;
    }
   } else {
    {
-    i64toi32_i32$2 = ((1 << i64toi32_i32$4 | 0) - 1 | 0) & (i64toi32_i32$0 >>> (32 - i64toi32_i32$4 | 0) | 0) | 0 | (i64toi32_i32$1 << i64toi32_i32$4 | 0) | 0;
-    $28 = i64toi32_i32$0 << i64toi32_i32$4 | 0;
+    i64toi32_i32$2 = (1 << i64toi32_i32$4) - 1 & i64toi32_i32$0 >>> 32 - i64toi32_i32$4 | i64toi32_i32$1 << i64toi32_i32$4;
+    $28 = i64toi32_i32$0 << i64toi32_i32$4;
    }
   }
   $22$hi = i64toi32_i32$2;
@@ -152,13 +152,13 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$1 = $19;
   i64toi32_i32$0 = $22$hi;
   i64toi32_i32$3 = $28;
-  i64toi32_i32$0 = i64toi32_i32$2 | i64toi32_i32$0 | 0;
-  $23 = i64toi32_i32$1 | i64toi32_i32$3 | 0;
+  i64toi32_i32$0 = i64toi32_i32$2 | i64toi32_i32$0;
+  $23 = i64toi32_i32$1 | i64toi32_i32$3;
   $23$hi = i64toi32_i32$0;
   i64toi32_i32$0 = $11$hi;
   i64toi32_i32$1 = $17$hi;
   i64toi32_i32$2 = $23$hi;
-  return $1($11 | 0, i64toi32_i32$0 | 0, $17 | 0, i64toi32_i32$1 | 0, $23 | 0, i64toi32_i32$2 | 0) | 0 | 0;
+  return $1($11 | 0, i64toi32_i32$0 | 0, $17 | 0, i64toi32_i32$1 | 0, $23 | 0, i64toi32_i32$2 | 0) | 0;
  }
  
  function legalstub$2($0, $1_1, $2_1, $3, $4, $5) {
@@ -176,16 +176,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$2 = $1_1;
   i64toi32_i32$1 = 0;
   i64toi32_i32$3 = 32;
-  i64toi32_i32$4 = i64toi32_i32$3 & 31 | 0;
-  if (32 >>> 0 <= (i64toi32_i32$3 & 63 | 0) >>> 0) {
+  i64toi32_i32$4 = i64toi32_i32$3 & 31;
+  if (32 >>> 0 <= (i64toi32_i32$3 & 63) >>> 0) {
    {
-    i64toi32_i32$1 = i64toi32_i32$2 << i64toi32_i32$4 | 0;
+    i64toi32_i32$1 = i64toi32_i32$2 << i64toi32_i32$4;
     $26 = 0;
    }
   } else {
    {
-    i64toi32_i32$1 = ((1 << i64toi32_i32$4 | 0) - 1 | 0) & (i64toi32_i32$2 >>> (32 - i64toi32_i32$4 | 0) | 0) | 0 | (i64toi32_i32$0 << i64toi32_i32$4 | 0) | 0;
-    $26 = i64toi32_i32$2 << i64toi32_i32$4 | 0;
+    i64toi32_i32$1 = (1 << i64toi32_i32$4) - 1 & i64toi32_i32$2 >>> 32 - i64toi32_i32$4 | i64toi32_i32$0 << i64toi32_i32$4;
+    $26 = i64toi32_i32$2 << i64toi32_i32$4;
    }
   }
   $10$hi = i64toi32_i32$1;
@@ -193,8 +193,8 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$0 = $7;
   i64toi32_i32$2 = $10$hi;
   i64toi32_i32$3 = $26;
-  i64toi32_i32$2 = i64toi32_i32$1 | i64toi32_i32$2 | 0;
-  $11 = i64toi32_i32$0 | i64toi32_i32$3 | 0;
+  i64toi32_i32$2 = i64toi32_i32$1 | i64toi32_i32$2;
+  $11 = i64toi32_i32$0 | i64toi32_i32$3;
   $11$hi = i64toi32_i32$2;
   i64toi32_i32$2 = 0;
   $13 = $2_1;
@@ -203,16 +203,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$1 = $3;
   i64toi32_i32$0 = 0;
   i64toi32_i32$3 = 32;
-  i64toi32_i32$4 = i64toi32_i32$3 & 31 | 0;
-  if (32 >>> 0 <= (i64toi32_i32$3 & 63 | 0) >>> 0) {
+  i64toi32_i32$4 = i64toi32_i32$3 & 31;
+  if (32 >>> 0 <= (i64toi32_i32$3 & 63) >>> 0) {
    {
-    i64toi32_i32$0 = i64toi32_i32$1 << i64toi32_i32$4 | 0;
+    i64toi32_i32$0 = i64toi32_i32$1 << i64toi32_i32$4;
     $27 = 0;
    }
   } else {
    {
-    i64toi32_i32$0 = ((1 << i64toi32_i32$4 | 0) - 1 | 0) & (i64toi32_i32$1 >>> (32 - i64toi32_i32$4 | 0) | 0) | 0 | (i64toi32_i32$2 << i64toi32_i32$4 | 0) | 0;
-    $27 = i64toi32_i32$1 << i64toi32_i32$4 | 0;
+    i64toi32_i32$0 = (1 << i64toi32_i32$4) - 1 & i64toi32_i32$1 >>> 32 - i64toi32_i32$4 | i64toi32_i32$2 << i64toi32_i32$4;
+    $27 = i64toi32_i32$1 << i64toi32_i32$4;
    }
   }
   $16$hi = i64toi32_i32$0;
@@ -220,8 +220,8 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$2 = $13;
   i64toi32_i32$1 = $16$hi;
   i64toi32_i32$3 = $27;
-  i64toi32_i32$1 = i64toi32_i32$0 | i64toi32_i32$1 | 0;
-  $17 = i64toi32_i32$2 | i64toi32_i32$3 | 0;
+  i64toi32_i32$1 = i64toi32_i32$0 | i64toi32_i32$1;
+  $17 = i64toi32_i32$2 | i64toi32_i32$3;
   $17$hi = i64toi32_i32$1;
   i64toi32_i32$1 = 0;
   $19 = $4;
@@ -230,16 +230,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$0 = $5;
   i64toi32_i32$2 = 0;
   i64toi32_i32$3 = 32;
-  i64toi32_i32$4 = i64toi32_i32$3 & 31 | 0;
-  if (32 >>> 0 <= (i64toi32_i32$3 & 63 | 0) >>> 0) {
+  i64toi32_i32$4 = i64toi32_i32$3 & 31;
+  if (32 >>> 0 <= (i64toi32_i32$3 & 63) >>> 0) {
    {
-    i64toi32_i32$2 = i64toi32_i32$0 << i64toi32_i32$4 | 0;
+    i64toi32_i32$2 = i64toi32_i32$0 << i64toi32_i32$4;
     $28 = 0;
    }
   } else {
    {
-    i64toi32_i32$2 = ((1 << i64toi32_i32$4 | 0) - 1 | 0) & (i64toi32_i32$0 >>> (32 - i64toi32_i32$4 | 0) | 0) | 0 | (i64toi32_i32$1 << i64toi32_i32$4 | 0) | 0;
-    $28 = i64toi32_i32$0 << i64toi32_i32$4 | 0;
+    i64toi32_i32$2 = (1 << i64toi32_i32$4) - 1 & i64toi32_i32$0 >>> 32 - i64toi32_i32$4 | i64toi32_i32$1 << i64toi32_i32$4;
+    $28 = i64toi32_i32$0 << i64toi32_i32$4;
    }
   }
   $22$hi = i64toi32_i32$2;
@@ -247,13 +247,13 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$1 = $19;
   i64toi32_i32$0 = $22$hi;
   i64toi32_i32$3 = $28;
-  i64toi32_i32$0 = i64toi32_i32$2 | i64toi32_i32$0 | 0;
-  $23 = i64toi32_i32$1 | i64toi32_i32$3 | 0;
+  i64toi32_i32$0 = i64toi32_i32$2 | i64toi32_i32$0;
+  $23 = i64toi32_i32$1 | i64toi32_i32$3;
   $23$hi = i64toi32_i32$0;
   i64toi32_i32$0 = $11$hi;
   i64toi32_i32$1 = $17$hi;
   i64toi32_i32$2 = $23$hi;
-  return $2($11 | 0, i64toi32_i32$0 | 0, $17 | 0, i64toi32_i32$1 | 0, $23 | 0, i64toi32_i32$2 | 0) | 0 | 0;
+  return $2($11 | 0, i64toi32_i32$0 | 0, $17 | 0, i64toi32_i32$1 | 0, $23 | 0, i64toi32_i32$2 | 0) | 0;
  }
  
  var FUNCTION_TABLE = [];