Add a small test to prevent regressions.
Signed-off-by: Ilya Leoshkevich
---
tests/tcg/s390x/Makefile.target | 1 +
tests/tcg/s390x/ts.c| 35 +
2 files changed, 36 insertions(+)
create mode 100644 tests/tcg/s390x/ts.c
diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target
index e2aba2ec274..a8f86c94498 100644
--- a/tests/tcg/s390x/Makefile.target
+++ b/tests/tcg/s390x/Makefile.target
@@ -47,6 +47,7 @@ TESTS+=add-logical-with-carry
TESTS+=lae
TESTS+=cvd
TESTS+=cvb
+TESTS+=ts
cdsg: CFLAGS+=-pthread
cdsg: LDFLAGS+=-pthread
diff --git a/tests/tcg/s390x/ts.c b/tests/tcg/s390x/ts.c
new file mode 100644
index 000..441faf30d98
--- /dev/null
+++ b/tests/tcg/s390x/ts.c
@@ -0,0 +1,35 @@
+/*
+ * Test the TEST AND SET instruction.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+#include
+#include
+
+static int ts(char *p)
+{
+int cc;
+
+asm("ts %[p]\n"
+"ipm %[cc]"
+: [cc] "=r" (cc)
+, [p] "+Q" (*p)
+: : "cc");
+
+return (cc >> 28) & 3;
+}
+
+int main(void)
+{
+char c;
+
+c = 0x80;
+assert(ts() == 1);
+assert(c == 0xff);
+
+c = 0x7f;
+assert(ts() == 0);
+assert(c == 0xff);
+
+return EXIT_SUCCESS;
+}
--
2.44.0
