diff options
| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2023-11-06 10:31:25 +0100 |
|---|---|---|
| committer | Michael Tokarev <mjt@tls.msk.ru> | 2023-11-19 21:15:23 +0300 |
| commit | 15764a76351d5e349f3fd47256df8976ca60e3f5 (patch) | |
| tree | b06d4ec63f4ba89498150184537d35ab79a34f8f | |
| parent | 154760b6db6885631edc9ef3b6650a761c417792 (diff) | |
tests/tcg/s390x: Test LAALG with negative cc_src
Add a small test to prevent regressions.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20231106093605.1349201-5-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit ebc14107f1f3ac1db13132cd28cf94adcd38e5d7)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Mjt: context fix in tests/tcg/s390x/Makefile.target)
| -rw-r--r-- | tests/tcg/s390x/Makefile.target | 1 | ||||
| -rw-r--r-- | tests/tcg/s390x/laalg.c | 27 |
2 files changed, 28 insertions, 0 deletions
diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target index cb90d4183d..ea9fa67152 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -24,6 +24,7 @@ TESTS+=trap TESTS+=signals-s390x TESTS+=branch-relative-long TESTS+=noexec +TESTS+=laalg Z13_TESTS=vistr Z13_TESTS+=lcbb diff --git a/tests/tcg/s390x/laalg.c b/tests/tcg/s390x/laalg.c new file mode 100644 index 0000000000..797d168bb1 --- /dev/null +++ b/tests/tcg/s390x/laalg.c @@ -0,0 +1,27 @@ +/* + * Test the LAALG instruction. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include <assert.h> +#include <stdlib.h> + +int main(void) +{ + unsigned long cc = 0, op1, op2 = 40, op3 = 2; + + asm("slgfi %[cc],1\n" /* Set cc_src = -1. */ + "laalg %[op1],%[op3],%[op2]\n" + "ipm %[cc]" + : [cc] "+r" (cc) + , [op1] "=r" (op1) + , [op2] "+T" (op2) + : [op3] "r" (op3) + : "cc"); + + assert(cc == 0xffffffff10ffffff); + assert(op1 == 40); + assert(op2 == 42); + + return EXIT_SUCCESS; +} |