| Message ID | 20231106093605.1349201-5-iii@linux.ibm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | target/s390x: CC fixes | expand |
On 11/6/23 01:31, Ilya Leoshkevich wrote: > Add a small test to prevent regressions. > > Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> > --- > tests/tcg/s390x/Makefile.target | 1 + > tests/tcg/s390x/laalg.c | 27 +++++++++++++++++++++++++++ > 2 files changed, 28 insertions(+) > create mode 100644 tests/tcg/s390x/laalg.c Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target index ccd4f4e68de..a476547b659 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 00000000000..797d168bb16 --- /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; +}
Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> --- tests/tcg/s390x/Makefile.target | 1 + tests/tcg/s390x/laalg.c | 27 +++++++++++++++++++++++++++ 2 files changed, 28 insertions(+) create mode 100644 tests/tcg/s390x/laalg.c