[wasm] Implement I32x4ReplaceLane, I32x4Add, I32x4Sub.

src/wasm/wasm-macro-gen.h

Index: src/wasm/wasm-macro-gen.h
diff --git a/src/wasm/wasm-macro-gen.h b/src/wasm/wasm-macro-gen.h
index 1ae0310d8f6f06d3711075760ea7a8d16bfd0287..4d7976d454961090d3184b7b8095c23ce93faf90 100644
--- a/src/wasm/wasm-macro-gen.h
+++ b/src/wasm/wasm-macro-gen.h
@@ -624,15 +624,16 @@ class LocalDeclEncoder {
 #define WASM_SIMD_I32x4_SPLAT(x) x, kSimdPrefix, kExprI32x4Splat & 0xff
 #define WASM_SIMD_I32x4_EXTRACT_LANE(lane, x) \
   x, kSimdPrefix, kExprI32x4ExtractLane & 0xff, static_cast<byte>(lane)
+#define WASM_SIMD_I32x4_REPLACE_LANE(lane, x, y) \
+  x, y, kSimdPrefix, kExprI32x4ReplaceLane & 0xff, static_cast<byte>(lane)
 #define WASM_SIMD_I32x4_ADD(x, y) x, y, kSimdPrefix, kExprI32x4Add & 0xff
+#define WASM_SIMD_I32x4_SUB(x, y) x, y, kSimdPrefix, kExprI32x4Sub & 0xff
 #define WASM_SIMD_F32x4_SPLAT(x) x, kSimdPrefix, kExprF32x4Splat & 0xff
 #define WASM_SIMD_F32x4_EXTRACT_LANE(lane, x) \
   x, kSimdPrefix, kExprF32x4ExtractLane & 0xff, static_cast<byte>(lane)
 #define WASM_SIMD_F32x4_ADD(x, y) x, y, kSimdPrefix, kExprF32x4Add & 0xff
-#define WASM_SIMD_I32x4_REPLACE_LANE(lane, x, y) \
-  y, x, kSimdPrefix, kExprI32x4ReplaceLane & 0xff, static_cast<byte>(lane)
 #define WASM_SIMD_F32x4_REPLACE_LANE(lane, x, y) \
-  y, x, kSimdPrefix, kExprF32x4ReplaceLane & 0xff, static_cast<byte>(lane)
+  x, y, kSimdPrefix, kExprF32x4ReplaceLane & 0xff, static_cast<byte>(lane)
 
 #define SIG_ENTRY_v_v kWasmFunctionTypeForm, 0, 0
 #define SIZEOF_SIG_ENTRY_v_v 3