Add a small test to prevent regressions. Userspace runs in primary
mode, so LAE should always set the access register to 0.
Signed-off-by: Ilya Leoshkevich <i...@linux.ibm.com>
---
tests/tcg/s390x/Makefile.target | 1 +
tests/tcg/s390x/lae.c | 25 +++++++++++++++++++++++++
2 files changed, 26 insertions(+)
create mode 100644 tests/tcg/s390x/lae.c
diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target
index 0e670f3f8b9..30994dcf9c2 100644
--- a/tests/tcg/s390x/Makefile.target
+++ b/tests/tcg/s390x/Makefile.target
@@ -44,6 +44,7 @@ TESTS+=clgebr
TESTS+=clc
TESTS+=laalg
TESTS+=add-logical-with-carry
+TESTS+=lae
cdsg: CFLAGS+=-pthread
cdsg: LDFLAGS+=-pthread
diff --git a/tests/tcg/s390x/lae.c b/tests/tcg/s390x/lae.c
new file mode 100644
index 00000000000..661e95f9978
--- /dev/null
+++ b/tests/tcg/s390x/lae.c
@@ -0,0 +1,25 @@
+/*
+ * Test the LOAD ADDRESS EXTENDED instruction.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+#include <assert.h>
+#include <stdlib.h>
+
+int main(void)
+{
+ unsigned long long ar = -1, b2 = 100000, r, x2 = 500;
+ int tmp;
+
+ asm("ear %[tmp],%[r]\n"
+ "lae %[r],42(%[x2],%[b2])\n"
+ "ear %[ar],%[r]\n"
+ "sar %[r],%[tmp]"
+ : [tmp] "=&r" (tmp), [r] "=&r" (r), [ar] "+r" (ar)
+ : [b2] "r" (b2), [x2] "r" (x2)
+ : "memory");
+ assert(ar == 0xffffffff00000000ULL);
+ assert(r == 100542);
+
+ return EXIT_SUCCESS;
+}
--
2.43.0
