From: Ilya Leoshkevich <iii@linux.ibm.com>
To: Laurent Vivier <laurent@vivier.eu>,
Richard Henderson <richard.henderson@linaro.org>,
David Hildenbrand <david@redhat.com>
Cc: Thomas Huth <thuth@redhat.com>,
qemu-devel@nongnu.org, qemu-s390x@nongnu.org,
Ilya Leoshkevich <iii@linux.ibm.com>
Subject: [PATCH v2 09/12] tests/tcg/s390x: Test LARL with a large offset
Date: Tue, 4 Jul 2023 10:12:33 +0200 [thread overview]
Message-ID: <20230704081506.276055-10-iii@linux.ibm.com> (raw)
In-Reply-To: <20230704081506.276055-1-iii@linux.ibm.com>
Add a small test to prevent regressions.
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
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
next prev parent reply other threads:[~2023-07-04 8:16 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-04 8:12 [PATCH v2 00/12] target/s390x: Miscellaneous TCG fixes Ilya Leoshkevich
2023-07-04 8:12 ` [PATCH v2 01/12] linux-user: elfload: Add more initial s390x PSW bits Ilya Leoshkevich
2023-07-04 8:12 ` [PATCH v2 02/12] target/s390x: Fix EPSW CC reporting Ilya Leoshkevich
2023-07-04 8:12 ` [PATCH v2 03/12] target/s390x: Fix MDEB and MDEBR Ilya Leoshkevich
2023-07-04 8:12 ` [PATCH v2 04/12] target/s390x: Fix MVCRL with a large value in R0 Ilya Leoshkevich
2023-07-04 8:12 ` [PATCH v2 05/12] target/s390x: Fix LRA overwriting the top 32 bits on DAT error Ilya Leoshkevich
2023-07-04 8:16 ` David Hildenbrand
2023-07-04 8:12 ` [PATCH v2 06/12] target/s390x: Fix LRA when DAT is off Ilya Leoshkevich
2023-07-04 8:12 ` [PATCH v2 07/12] target/s390x: Fix relative long instructions with large offsets Ilya Leoshkevich
2023-07-04 8:12 ` [PATCH v2 08/12] tests/tcg/s390x: Test EPSW Ilya Leoshkevich
2023-07-04 8:12 ` Ilya Leoshkevich [this message]
2023-07-04 8:12 ` [PATCH v2 10/12] tests/tcg/s390x: Test LRA Ilya Leoshkevich
2023-07-04 8:12 ` [PATCH v2 11/12] tests/tcg/s390x: Test MDEB and MDEBR Ilya Leoshkevich
2023-07-04 8:12 ` [PATCH v2 12/12] tests/tcg/s390x: Test MVCRL with a large value in R0 Ilya Leoshkevich
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