1 files changed, 30 insertions, 0 deletions
diff --git a/tests/tcg/sh4/test-subv.c b/tests/tcg/sh4/test-subv.c
new file mode 100644
index 0000000000..a3c2db96e4
--- /dev/null
+++ b/tests/tcg/sh4/test-subv.c
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static void subv(const int a, const int b, const int res, const int carry)
+{
+    int o = a, c;
+
+    asm volatile("subv %2,%0\n"
+                 "movt %1\n"
+                 : "+r"(o), "=r"(c) : "r"(b) : );
+
+    if (c != carry || o != res) {
+        printf("SUBV %d, %d = %d/%d [T = %d/%d]\n", a, b, o, res, c, carry);
+        abort();
+    }
+}
+
+int main(void)
+{
+    subv(INT_MIN, 1, INT_MAX, 1);
+    subv(INT_MAX, -1, INT_MIN, 1);
+    subv(INT_MAX, 1, INT_MAX - 1, 0);
+    subv(0, 1, -1, 0);
+    subv(-1, -1, 0, 0);
+
+    return 0;
+}