diff options
| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2023-05-26 20:12:40 +0200 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2023-06-05 07:27:23 +0200 |
| commit | 230976232f4fcdc205d6ec53ec9f3804b28dc1e7 (patch) | |
| tree | 8806c68a7fbc11fcd25d392676ff8c023b92a67d /tests | |
| parent | 3180b173621021c365c256cedf2f5845bd4780d0 (diff) | |
tests/tcg/s390x: Test LOCFHR
Add a small test to prevent regressions.
Cc: qemu-stable@nongnu.org
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20230526181240.1425579-5-iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/tcg/s390x/Makefile.target | 1 | ||||
| -rw-r--r-- | tests/tcg/s390x/locfhr.c | 29 |
2 files changed, 30 insertions, 0 deletions
diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target index 4ed07c6ab0..b14c0bd84b 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -48,6 +48,7 @@ TESTS += $(PGM_SPECIFICATION_TESTS) Z13_TESTS=vistr Z13_TESTS+=lcbb +Z13_TESTS+=locfhr $(Z13_TESTS): CFLAGS+=-march=z13 -O2 TESTS+=$(Z13_TESTS) diff --git a/tests/tcg/s390x/locfhr.c b/tests/tcg/s390x/locfhr.c new file mode 100644 index 0000000000..ab9ff6e449 --- /dev/null +++ b/tests/tcg/s390x/locfhr.c @@ -0,0 +1,29 @@ +/* + * Test the LOCFHR instruction. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include <assert.h> +#include <stdlib.h> + +static inline __attribute__((__always_inline__)) long +locfhr(long r1, long r2, int m3, int cc) +{ + cc <<= 28; + asm("spm %[cc]\n" + "locfhr %[r1],%[r2],%[m3]\n" + : [r1] "+r" (r1) + : [cc] "r" (cc), [r2] "r" (r2), [m3] "i" (m3) + : "cc"); + return r1; +} + +int main(void) +{ + assert(locfhr(0x1111111122222222, 0x3333333344444444, 8, 0) == + 0x3333333322222222); + assert(locfhr(0x5555555566666666, 0x7777777788888888, 11, 1) == + 0x5555555566666666); + + return EXIT_SUCCESS; +} |