3 files changed, 32 insertions, 0 deletions
diff --git a/src/binaryen-c.cpp b/src/binaryen-c.cpp
index 00a907ab4..dfcd425e3 100644
--- a/src/binaryen-c.cpp
+++ b/src/binaryen-c.cpp
@@ -698,6 +698,18 @@ BinaryenOp BinaryenExtendLowUVecI16x8ToVecI32x4(void) {
 BinaryenOp BinaryenExtendHighUVecI16x8ToVecI32x4(void) {
   return ExtendHighUVecI16x8ToVecI32x4;
 }
+BinaryenOp BinaryenExtendLowSVecI32x4ToVecI64x2(void) {
+  return ExtendLowSVecI32x4ToVecI64x2;
+}
+BinaryenOp BinaryenExtendHighSVecI32x4ToVecI64x2(void) {
+  return ExtendHighSVecI32x4ToVecI64x2;
+}
+BinaryenOp BinaryenExtendLowUVecI32x4ToVecI64x2(void) {
+  return ExtendLowUVecI32x4ToVecI64x2;
+}
+BinaryenOp BinaryenExtendHighUVecI32x4ToVecI64x2(void) {
+  return ExtendHighUVecI32x4ToVecI64x2;
+}
 BinaryenOp BinaryenSwizzleVec8x16(void) { return SwizzleVec8x16; }
 BinaryenOp BinaryenRefIsNull(void) { return RefIsNull; }
 BinaryenOp BinaryenRefIsFunc(void) { return RefIsFunc; }
diff --git a/src/binaryen-c.h b/src/binaryen-c.h
index 33d2438e1..84661b750 100644
--- a/src/binaryen-c.h
+++ b/src/binaryen-c.h
@@ -557,6 +557,10 @@ BINARYEN_API BinaryenOp BinaryenExtendLowSVecI16x8ToVecI32x4(void);
 BINARYEN_API BinaryenOp BinaryenExtendHighSVecI16x8ToVecI32x4(void);
 BINARYEN_API BinaryenOp BinaryenExtendLowUVecI16x8ToVecI32x4(void);
 BINARYEN_API BinaryenOp BinaryenExtendHighUVecI16x8ToVecI32x4(void);
+BINARYEN_API BinaryenOp BinaryenExtendLowSVecI32x4ToVecI64x2(void);
+BINARYEN_API BinaryenOp BinaryenExtendHighSVecI32x4ToVecI64x2(void);
+BINARYEN_API BinaryenOp BinaryenExtendLowUVecI32x4ToVecI64x2(void);
+BINARYEN_API BinaryenOp BinaryenExtendHighUVecI32x4ToVecI64x2(void);
 BINARYEN_API BinaryenOp BinaryenSwizzleVec8x16(void);
 BINARYEN_API BinaryenOp BinaryenRefIsNull(void);
 BINARYEN_API BinaryenOp BinaryenRefIsFunc(void);
diff --git a/src/js/binaryen.js-post.js b/src/js/binaryen.js-post.js
index f5ab04642..80affeefc 100644
--- a/src/js/binaryen.js-post.js
+++ b/src/js/binaryen.js-post.js
@@ -485,6 +485,10 @@ function initializeConstants() {
     'ExtendHighSVecI16x8ToVecI32x4',
     'ExtendLowUVecI16x8ToVecI32x4',
     'ExtendHighUVecI16x8ToVecI32x4',
+    'ExtendLowSVecI32x4ToVecI64x2',
+    'ExtendHighSVecI32x4ToVecI64x2',
+    'ExtendLowUVecI32x4ToVecI64x2',
+    'ExtendHighUVecI32x4ToVecI64x2',
     'SwizzleVec8x16',
     'RefIsNull',
     'RefIsFunc',
@@ -1896,6 +1900,18 @@ function wrapModule(module, self = {}) {
     'mul'(left, right) {
       return Module['_BinaryenBinary'](module, Module['MulVecI64x2'], left, right);
     },
+    'extend_low_i32x4_s'(value) {
+      return Module['_BinaryenUnary'](module, Module['ExtendLowSVecI32x4ToVecI64x2'], value);
+    },
+    'extend_high_i32x4_s'(value) {
+      return Module['_BinaryenUnary'](module, Module['ExtendHighSVecI32x4ToVecI64x2'], value);
+    },
+    'extend_low_i32x4_u'(value) {
+      return Module['_BinaryenUnary'](module, Module['ExtendLowUVecI32x4ToVecI64x2'], value);
+    },
+    'extend_high_i32x4_u'(value) {
+      return Module['_BinaryenUnary'](module, Module['ExtendHighUVecI32x4ToVecI64x2'], value);
+    },
   };
 
   self['f32x4'] = {