diff --git a/package-lock.json b/package-lock.json
index 1dea1f3aa5..a0722f9e06 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1163,9 +1163,9 @@
       "optional": true
     },
     "binaryen": {
-      "version": "97.0.0-nightly.20201006",
-      "resolved": "https://registry.npmjs.org/binaryen/-/binaryen-97.0.0-nightly.20201006.tgz",
-      "integrity": "sha512-/xZwg4pDUQYg8BIn1F6OypJGwADNTIEDm48O5KuSE250bPj1tGCvAinYmm2JAoiio7DovTkwb5I3w0G+CvG8Jg=="
+      "version": "97.0.0-nightly.20201008",
+      "resolved": "https://registry.npmjs.org/binaryen/-/binaryen-97.0.0-nightly.20201008.tgz",
+      "integrity": "sha512-GWV30FOQqz+vBIZRbc7GSasLNhh8BNLKH+2u2j5BjqM0WOEqqaP5iSj0mq72We2aVYqpBajJPI/CORY6o2RBxA=="
     },
     "bluebird": {
       "version": "3.7.2",
diff --git a/package.json b/package.json
index 40a1feaac6..c64fb60edd 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "url": "https://github.com/AssemblyScript/assemblyscript/issues"
   },
   "dependencies": {
-    "binaryen": "97.0.0-nightly.20201006",
+    "binaryen": "97.0.0-nightly.20201008",
     "long": "^4.0.0",
     "source-map-support": "^0.5.19",
     "ts-node": "^6.2.0"
diff --git a/tests/compiler/std/array.optimized.wat b/tests/compiler/std/array.optimized.wat
index 4ab7f33740..704f2e5f94 100644
--- a/tests/compiler/std/array.optimized.wat
+++ b/tests/compiler/std/array.optimized.wat
@@ -4353,8 +4353,6 @@
      local.get $2
      i32.const 1
      i32.shr_s
-     i32.const 31
-     i32.and
      i32.shr_u
      i32.const 1
      i32.and
@@ -4406,8 +4404,6 @@
      i32.load
      i32.const 1
      local.get $3
-     i32.const 31
-     i32.and
      i32.shl
      i32.xor
      i32.store
@@ -4469,8 +4465,6 @@
      i32.add
      i32.load
      local.get $1
-     i32.const 31
-     i32.and
      i32.shr_u
      i32.const 1
      i32.and
@@ -4524,8 +4518,6 @@
        i32.load
        i32.const 1
        local.get $1
-       i32.const 31
-       i32.and
        i32.shl
        i32.xor
        i32.store
@@ -4891,8 +4883,6 @@
      local.get $2
      i32.const 1
      i32.shr_s
-     i32.const 31
-     i32.and
      i32.shr_u
      i32.const 1
      i32.and
@@ -4944,8 +4934,6 @@
      i32.load
      i32.const 1
      local.get $3
-     i32.const 31
-     i32.and
      i32.shl
      i32.xor
      i32.store
@@ -5007,8 +4995,6 @@
      i32.add
      i32.load
      local.get $1
-     i32.const 31
-     i32.and
      i32.shr_u
      i32.const 1
      i32.and
@@ -5062,8 +5048,6 @@
        i32.load
        i32.const 1
        local.get $1
-       i32.const 31
-       i32.and
        i32.shl
        i32.xor
        i32.store
@@ -5450,8 +5434,6 @@
      local.get $2
      i32.const 1
      i32.shr_s
-     i32.const 31
-     i32.and
      i32.shr_u
      i32.const 1
      i32.and
@@ -5503,8 +5485,6 @@
      i32.load
      i32.const 1
      local.get $3
-     i32.const 31
-     i32.and
      i32.shl
      i32.xor
      i32.store
@@ -5566,8 +5546,6 @@
      i32.add
      i32.load
      local.get $1
-     i32.const 31
-     i32.and
      i32.shr_u
      i32.const 1
      i32.and
@@ -5621,8 +5599,6 @@
        i32.load
        i32.const 1
        local.get $1
-       i32.const 31
-       i32.and
        i32.shl
        i32.xor
        i32.store
@@ -18670,8 +18646,6 @@
      local.get $2
      i32.const 1
      i32.shr_s
-     i32.const 31
-     i32.and
      i32.shr_u
      i32.const 1
      i32.and
@@ -18719,8 +18693,6 @@
      i32.load
      i32.const 1
      local.get $3
-     i32.const 31
-     i32.and
      i32.shl
      i32.xor
      i32.store
@@ -18776,8 +18748,6 @@
      i32.add
      i32.load
      local.get $1
-     i32.const 31
-     i32.and
      i32.shr_u
      i32.const 1
      i32.and
@@ -18829,8 +18799,6 @@
        i32.load
        i32.const 1
        local.get $1
-       i32.const 31
-       i32.and
        i32.shl
        i32.xor
        i32.store
diff --git a/tests/compiler/std/typedarray.optimized.wat b/tests/compiler/std/typedarray.optimized.wat
index 26d19565b6..b8b8591ed0 100644
--- a/tests/compiler/std/typedarray.optimized.wat
+++ b/tests/compiler/std/typedarray.optimized.wat
@@ -2638,8 +2638,6 @@
      local.get $2
      i32.const 1
      i32.shr_s
-     i32.const 31
-     i32.and
      i32.shr_u
      i32.const 1
      i32.and
@@ -2691,8 +2689,6 @@
      i32.load
      i32.const 1
      local.get $3
-     i32.const 31
-     i32.and
      i32.shl
      i32.xor
      i32.store
@@ -2754,8 +2750,6 @@
      i32.add
      i32.load
      local.get $1
-     i32.const 31
-     i32.and
      i32.shr_u
      i32.const 1
      i32.and
@@ -2809,8 +2803,6 @@
        i32.load
        i32.const 1
        local.get $1
-       i32.const 31
-       i32.and
        i32.shl
        i32.xor
        i32.store