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, 56 insertions, 56 deletions

diff --git a/test/wasm2js/int_literals.2asm.js b/test/wasm2js/int_literals.2asm.js
index 68ccadaf7..698e1eb17 100644
--- a/test/wasm2js/int_literals.2asm.js
+++ b/test/wasm2js/int_literals.2asm.js
@@ -49,7 +49,7 @@ function asmFunc(global, env, buffer) {
  }
  
  function $6() {
-  return 2147483648 + 1 | 0 | 0;
+  return 2147483648 + 1 | 0;
  }
  
  function $7() {
@@ -139,16 +139,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$2 = i64toi32_i32$0;
   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 = 0;
-    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
+    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4;
    }
   } else {
    {
-    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
-    $7_1 = (((1 << i64toi32_i32$4 | 0) - 1 | 0) & i64toi32_i32$1 | 0) << (32 - i64toi32_i32$4 | 0) | 0 | (i64toi32_i32$2 >>> i64toi32_i32$4 | 0) | 0;
+    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4;
+    $7_1 = ((1 << i64toi32_i32$4) - 1 & i64toi32_i32$1) << 32 - i64toi32_i32$4 | i64toi32_i32$2 >>> i64toi32_i32$4;
    }
   }
   setTempRet0($7_1 | 0);
@@ -165,16 +165,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$2 = i64toi32_i32$0;
   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 = 0;
-    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
+    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4;
    }
   } else {
    {
-    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
-    $7_1 = (((1 << i64toi32_i32$4 | 0) - 1 | 0) & i64toi32_i32$1 | 0) << (32 - i64toi32_i32$4 | 0) | 0 | (i64toi32_i32$2 >>> i64toi32_i32$4 | 0) | 0;
+    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4;
+    $7_1 = ((1 << i64toi32_i32$4) - 1 & i64toi32_i32$1) << 32 - i64toi32_i32$4 | i64toi32_i32$2 >>> i64toi32_i32$4;
    }
   }
   setTempRet0($7_1 | 0);
@@ -191,16 +191,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$2 = i64toi32_i32$0;
   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 = 0;
-    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
+    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4;
    }
   } else {
    {
-    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
-    $7_1 = (((1 << i64toi32_i32$4 | 0) - 1 | 0) & i64toi32_i32$1 | 0) << (32 - i64toi32_i32$4 | 0) | 0 | (i64toi32_i32$2 >>> i64toi32_i32$4 | 0) | 0;
+    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4;
+    $7_1 = ((1 << i64toi32_i32$4) - 1 & i64toi32_i32$1) << 32 - i64toi32_i32$4 | i64toi32_i32$2 >>> i64toi32_i32$4;
    }
   }
   setTempRet0($7_1 | 0);
@@ -217,16 +217,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$2 = i64toi32_i32$0;
   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 = 0;
-    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
+    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4;
    }
   } else {
    {
-    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
-    $7_1 = (((1 << i64toi32_i32$4 | 0) - 1 | 0) & i64toi32_i32$1 | 0) << (32 - i64toi32_i32$4 | 0) | 0 | (i64toi32_i32$2 >>> i64toi32_i32$4 | 0) | 0;
+    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4;
+    $7_1 = ((1 << i64toi32_i32$4) - 1 & i64toi32_i32$1) << 32 - i64toi32_i32$4 | i64toi32_i32$2 >>> i64toi32_i32$4;
    }
   }
   setTempRet0($7_1 | 0);
@@ -243,16 +243,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$2 = i64toi32_i32$0;
   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 = 0;
-    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
+    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4;
    }
   } else {
    {
-    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
-    $7_1 = (((1 << i64toi32_i32$4 | 0) - 1 | 0) & i64toi32_i32$1 | 0) << (32 - i64toi32_i32$4 | 0) | 0 | (i64toi32_i32$2 >>> i64toi32_i32$4 | 0) | 0;
+    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4;
+    $7_1 = ((1 << i64toi32_i32$4) - 1 & i64toi32_i32$1) << 32 - i64toi32_i32$4 | i64toi32_i32$2 >>> i64toi32_i32$4;
    }
   }
   setTempRet0($7_1 | 0);
@@ -269,16 +269,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$2 = i64toi32_i32$0;
   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 = 0;
-    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
+    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4;
    }
   } else {
    {
-    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
-    $7_1 = (((1 << i64toi32_i32$4 | 0) - 1 | 0) & i64toi32_i32$1 | 0) << (32 - i64toi32_i32$4 | 0) | 0 | (i64toi32_i32$2 >>> i64toi32_i32$4 | 0) | 0;
+    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4;
+    $7_1 = ((1 << i64toi32_i32$4) - 1 & i64toi32_i32$1) << 32 - i64toi32_i32$4 | i64toi32_i32$2 >>> i64toi32_i32$4;
    }
   }
   setTempRet0($7_1 | 0);
@@ -295,16 +295,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$2 = i64toi32_i32$0;
   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 = 0;
-    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
+    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4;
    }
   } else {
    {
-    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
-    $7_1 = (((1 << i64toi32_i32$4 | 0) - 1 | 0) & i64toi32_i32$1 | 0) << (32 - i64toi32_i32$4 | 0) | 0 | (i64toi32_i32$2 >>> i64toi32_i32$4 | 0) | 0;
+    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4;
+    $7_1 = ((1 << i64toi32_i32$4) - 1 & i64toi32_i32$1) << 32 - i64toi32_i32$4 | i64toi32_i32$2 >>> i64toi32_i32$4;
    }
   }
   setTempRet0($7_1 | 0);
@@ -321,16 +321,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$2 = i64toi32_i32$0;
   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 = 0;
-    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
+    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4;
    }
   } else {
    {
-    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
-    $7_1 = (((1 << i64toi32_i32$4 | 0) - 1 | 0) & i64toi32_i32$1 | 0) << (32 - i64toi32_i32$4 | 0) | 0 | (i64toi32_i32$2 >>> i64toi32_i32$4 | 0) | 0;
+    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4;
+    $7_1 = ((1 << i64toi32_i32$4) - 1 & i64toi32_i32$1) << 32 - i64toi32_i32$4 | i64toi32_i32$2 >>> i64toi32_i32$4;
    }
   }
   setTempRet0($7_1 | 0);
@@ -347,16 +347,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$2 = i64toi32_i32$0;
   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 = 0;
-    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
+    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4;
    }
   } else {
    {
-    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
-    $7_1 = (((1 << i64toi32_i32$4 | 0) - 1 | 0) & i64toi32_i32$1 | 0) << (32 - i64toi32_i32$4 | 0) | 0 | (i64toi32_i32$2 >>> i64toi32_i32$4 | 0) | 0;
+    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4;
+    $7_1 = ((1 << i64toi32_i32$4) - 1 & i64toi32_i32$1) << 32 - i64toi32_i32$4 | i64toi32_i32$2 >>> i64toi32_i32$4;
    }
   }
   setTempRet0($7_1 | 0);
@@ -373,16 +373,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$2 = i64toi32_i32$0;
   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 = 0;
-    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
+    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4;
    }
   } else {
    {
-    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
-    $7_1 = (((1 << i64toi32_i32$4 | 0) - 1 | 0) & i64toi32_i32$1 | 0) << (32 - i64toi32_i32$4 | 0) | 0 | (i64toi32_i32$2 >>> i64toi32_i32$4 | 0) | 0;
+    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4;
+    $7_1 = ((1 << i64toi32_i32$4) - 1 & i64toi32_i32$1) << 32 - i64toi32_i32$4 | i64toi32_i32$2 >>> i64toi32_i32$4;
    }
   }
   setTempRet0($7_1 | 0);
@@ -399,16 +399,16 @@ function asmFunc(global, env, buffer) {
   i64toi32_i32$2 = i64toi32_i32$0;
   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 = 0;
-    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
+    $7_1 = i64toi32_i32$1 >>> i64toi32_i32$4;
    }
   } else {
    {
-    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4 | 0;
-    $7_1 = (((1 << i64toi32_i32$4 | 0) - 1 | 0) & i64toi32_i32$1 | 0) << (32 - i64toi32_i32$4 | 0) | 0 | (i64toi32_i32$2 >>> i64toi32_i32$4 | 0) | 0;
+    i64toi32_i32$0 = i64toi32_i32$1 >>> i64toi32_i32$4;
+    $7_1 = ((1 << i64toi32_i32$4) - 1 & i64toi32_i32$1) << 32 - i64toi32_i32$4 | i64toi32_i32$2 >>> i64toi32_i32$4;
    }
   }
   setTempRet0($7_1 | 0);