diff --git a/test/misc.cpp b/test/misc.cpp
index 740b56a..9f4a632 100644
--- a/test/misc.cpp
+++ b/test/misc.cpp
@@ -866,4 +866,23 @@ CYBOZU_TEST_AUTO(vnni)
 	CYBOZU_TEST_EXCEPTION(c.badVex(), std::exception);
 }
 
+CYBOZU_TEST_AUTO(vaddph)
+{
+	struct Code : Xbyak::CodeGenerator {
+		Code()
+		{
+			vaddph(zmm0, zmm1, ptr[rax+64]);
+			vaddph(ymm0, ymm1, ptr[rax+64]);
+			vaddph(xmm0, xmm1, ptr[rax+64]);
+		}
+	} c;
+	const uint8_t tbl[] = {
+		0x62, 0xF5, 0x74, 0x48, 0x58, 0x40, 0x01,
+		0x62, 0xF5, 0x74, 0x28, 0x58, 0x40, 0x02,
+		0x62, 0xF5, 0x74, 0x08, 0x58, 0x40, 0x04,
+	};
+	const size_t n = sizeof(tbl) / sizeof(tbl[0]);
+	CYBOZU_TEST_EQUAL(c.getSize(), n);
+	CYBOZU_TEST_EQUAL_ARRAY(c.getCode(), tbl, n);
+}
 #endif