On 19/07/2023 11.44, Ilya Leoshkevich wrote:
Add a small test to prevent regressions.
Signed-off-by: Ilya Leoshkevich <i...@linux.ibm.com>
---
tests/tcg/s390x/Makefile.softmmu-target | 1 +
tests/tcg/s390x/cksm.S | 29 +++++++++++++++++++++++++
2 files changed, 30 insertions(+)
create mode 100644 tests/tcg/s390x/cksm.S
diff --git a/tests/tcg/s390x/Makefile.softmmu-target
b/tests/tcg/s390x/Makefile.softmmu-target
index 242c7b0f83c..e813e318db9 100644
--- a/tests/tcg/s390x/Makefile.softmmu-target
+++ b/tests/tcg/s390x/Makefile.softmmu-target
@@ -16,6 +16,7 @@ LDFLAGS=-nostdlib -static
ASM_TESTS = \
bal
\
+ cksm
\
exrl-ssm-early
\
sam
\
lpsw
\
diff --git a/tests/tcg/s390x/cksm.S b/tests/tcg/s390x/cksm.S
new file mode 100644
index 00000000000..a45f3ef6bfd
--- /dev/null
+++ b/tests/tcg/s390x/cksm.S
@@ -0,0 +1,29 @@
+ .org 0x8e
+program_interruption_code:
+ .org 0x1d0 /* program new PSW */
+ .quad 0,pgm
+ .org 0x200 /* lowcore padding */
+ .globl _start
+_start:
+ lmg %r0,%r1,cksm_args
+ cksm %r2,%r0
+ c %r2,cksm_exp
+ jne failure
+ cksm %r2,%r15
Clang is smart enough to detect that this is a bad instruction:
$ make check-tcg
BUILD s390x-softmmu guest-tests
tests/tcg/s390x/cksm.S:12:14: error: invalid register pair
cksm %r2,%r15
^
I guess you have to manually create the opcode here?
Thomas
