diff options
| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2023-11-06 10:31:25 +0100 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2023-11-07 19:27:08 +0100 |
| commit | ebc14107f1f3ac1db13132cd28cf94adcd38e5d7 (patch) | |
| tree | 5b654757be944eb2a433ef977ae3df59065f0af3 /tests | |
| parent | bea402482a8c94389638cbd3d7fe3963fb317f4c (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>
Diffstat (limited to 'tests')
| -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 ccd4f4e68d..a476547b65 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -42,6 +42,7 @@ TESTS+=mdeb TESTS+=cgebra TESTS+=clgebr TESTS+=clc +TESTS+=laalg cdsg: CFLAGS+=-pthread cdsg: LDFLAGS+=-pthread 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; +} |