1 files changed, 19 insertions, 1 deletions
diff --git a/src/wasm.h b/src/wasm.h
index bd2e31814..0050fcc28 100644
--- a/src/wasm.h
+++ b/src/wasm.h
@@ -481,7 +481,7 @@ enum SIMDReplaceOp {
   ReplaceLaneVecI32x4,
   ReplaceLaneVecI64x2,
   ReplaceLaneVecF32x4,
-  ReplaceLaneVecF64x2
+  ReplaceLaneVecF64x2,
 };
 
 enum SIMDShiftOp {
@@ -537,6 +537,11 @@ enum SIMDTernaryOp {
   SignSelectVec64x2
 };
 
+enum SIMDWidenOp {
+  WidenSVecI8x16ToVecI32x4,
+  WidenUVecI8x16ToVecI32x4,
+};
+
 enum PrefetchOp {
   PrefetchTemporal,
   PrefetchNontemporal,
@@ -625,6 +630,7 @@ public:
     SIMDShiftId,
     SIMDLoadId,
     SIMDLoadStoreLaneId,
+    SIMDWidenId,
     MemoryInitId,
     DataDropId,
     MemoryCopyId,
@@ -1072,6 +1078,18 @@ public:
   void finalize();
 };
 
+class SIMDWiden : public SpecificExpression<Expression::SIMDWidenId> {
+public:
+  SIMDWiden() = default;
+  SIMDWiden(MixedArena& allocator) {}
+
+  SIMDWidenOp op;
+  uint8_t index;
+  Expression* vec;
+
+  void finalize();
+};
+
 class Prefetch : public SpecificExpression<Expression::PrefetchId> {
 public:
   Prefetch() = default;