1 files changed, 51 insertions, 1 deletions
diff --git a/test/misc.cpp b/test/misc.cpp
index 1457691..a15721f 100644
--- a/test/misc.cpp
+++ b/test/misc.cpp
@@ -2284,5 +2284,55 @@ CYBOZU_TEST_AUTO(avx_vnni_int)
 	CYBOZU_TEST_EQUAL_ARRAY(c.getCode(), tbl, n);
 }
 
-
+CYBOZU_TEST_AUTO(rdfsbase)
+{
+	struct Code : Xbyak::CodeGenerator {
+		Code()
+		{
+			rdfsbase(rax);
+			rdfsbase(r15d);
+			rdfsbase(r30d);
+			rdfsbase(r31);
+
+			rdgsbase(rax);
+			rdgsbase(r15d);
+			rdgsbase(r30d);
+			rdgsbase(r31);
+
+			wrfsbase(rax);
+			wrfsbase(r15d);
+			wrfsbase(r30d);
+			wrfsbase(r31);
+
+			wrgsbase(rax);
+			wrgsbase(r15d);
+			wrgsbase(r30d);
+			wrgsbase(r31);
+		}
+	} c;
+	const uint8_t tbl[] = {
+		0xf3, 0x48, 0x0f, 0xae, 0xc0,
+		0xf3, 0x41, 0x0f, 0xae, 0xc7,
+		0xf3, 0xd5, 0x91, 0xae, 0xc6,
+		0xf3, 0xd5, 0x99, 0xae, 0xc7,
+
+		0xf3, 0x48, 0x0f, 0xae, 0xc8,
+		0xf3, 0x41, 0x0f, 0xae, 0xcf,
+		0xf3, 0xd5, 0x91, 0xae, 0xce,
+		0xf3, 0xd5, 0x99, 0xae, 0xcf,
+
+		0xf3, 0x48, 0x0f, 0xae, 0xd0,
+		0xf3, 0x41, 0x0f, 0xae, 0xd7,
+		0xf3, 0xd5, 0x91, 0xae, 0xd6,
+		0xf3, 0xd5, 0x99, 0xae, 0xd7,
+
+		0xf3, 0x48, 0x0f, 0xae, 0xd8,
+		0xf3, 0x41, 0x0f, 0xae, 0xdf,
+		0xf3, 0xd5, 0x91, 0xae, 0xde,
+		0xf3, 0xd5, 0x99, 0xae, 0xdf,
+	};
+	const size_t n = sizeof(tbl) / sizeof(tbl[0]);
+	CYBOZU_TEST_EQUAL(c.getSize(), n);
+	CYBOZU_TEST_EQUAL_ARRAY(c.getCode(), tbl, n);
+}
 #endif