Add a small test to prevent regressions.
Acked-by: David Hildenbrand <[email protected]>
Signed-off-by: Ilya Leoshkevich <[email protected]>
---
tests/tcg/s390x/Makefile.target | 1 +
tests/tcg/s390x/larl.c | 21 +++++++++++++++++++++
2 files changed, 22 insertions(+)
create mode 100644 tests/tcg/s390x/larl.c
diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target
index 2ef22c88d95..dbf64c991e9 100644
--- a/tests/tcg/s390x/Makefile.target
+++ b/tests/tcg/s390x/Makefile.target
@@ -37,6 +37,7 @@ TESTS+=ex-relative-long
TESTS+=ex-branch
TESTS+=mxdb
TESTS+=epsw
+TESTS+=larl
cdsg: CFLAGS+=-pthread
cdsg: LDFLAGS+=-pthread
diff --git a/tests/tcg/s390x/larl.c b/tests/tcg/s390x/larl.c
new file mode 100644
index 00000000000..7c95f89be73
--- /dev/null
+++ b/tests/tcg/s390x/larl.c
@@ -0,0 +1,21 @@
+/*
+ * Test the LARL instruction.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+#include <stdlib.h>
+
+int main(void)
+{
+ long algfi = (long)main;
+ long larl;
+
+ /*
+ * The compiler may emit larl for the C addition, so compute the expected
+ * value using algfi.
+ */
+ asm("algfi %[r],0xd0000000" : [r] "+r" (algfi) : : "cc");
+ asm("larl %[r],main+0xd0000000" : [r] "=r" (larl));
+
+ return algfi == larl ? EXIT_SUCCESS : EXIT_FAILURE;
+}
--
2.41.0
