| Message ID | 20230703155801.179167-12-iii@linux.ibm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | target/s390x: Miscellaneous TCG fixes | expand |
On 03.07.23 17:50, 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/mdeb.c | 30 ++++++++++++++++++++++++++++++ > 2 files changed, 31 insertions(+) > create mode 100644 tests/tcg/s390x/mdeb.c > > diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target > index dbf64c991e9..19fbbc6e531 100644 > --- a/tests/tcg/s390x/Makefile.target > +++ b/tests/tcg/s390x/Makefile.target > @@ -38,6 +38,7 @@ TESTS+=ex-branch > TESTS+=mxdb > TESTS+=epsw > TESTS+=larl > +TESTS+=mdeb > > cdsg: CFLAGS+=-pthread > cdsg: LDFLAGS+=-pthread > diff --git a/tests/tcg/s390x/mdeb.c b/tests/tcg/s390x/mdeb.c > new file mode 100644 > index 00000000000..4897d28069f > --- /dev/null > +++ b/tests/tcg/s390x/mdeb.c > @@ -0,0 +1,30 @@ > +/* > + * Test the MDEB and MDEBR instructions. > + * > + * SPDX-License-Identifier: GPL-2.0-or-later > + */ > +#include <assert.h> > +#include <stdlib.h> > + > +int main(void) > +{ > + union { > + float f[2]; > + double d; > + } a; > + float b; > + > + a.f[0] = 1.2345; > + a.f[1] = 999; > + b = 6.789; > + asm("mdeb %[a],%[b]" : [a] "+f" (a.d) : [b] "R" (b)); > + assert(a.d > 8.38 && a.d < 8.39); > + > + a.f[0] = 1.2345; > + a.f[1] = 999; > + b = 6.789; > + asm("mdebr %[a],%[b]" : [a] "+f" (a.d) : [b] "f" (b)); > + assert(a.d > 8.38 && a.d < 8.39); > + > + return EXIT_SUCCESS; > +} Acked-by: David Hildenbrand <david@redhat.com>
diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target index dbf64c991e9..19fbbc6e531 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -38,6 +38,7 @@ TESTS+=ex-branch TESTS+=mxdb TESTS+=epsw TESTS+=larl +TESTS+=mdeb cdsg: CFLAGS+=-pthread cdsg: LDFLAGS+=-pthread diff --git a/tests/tcg/s390x/mdeb.c b/tests/tcg/s390x/mdeb.c new file mode 100644 index 00000000000..4897d28069f --- /dev/null +++ b/tests/tcg/s390x/mdeb.c @@ -0,0 +1,30 @@ +/* + * Test the MDEB and MDEBR instructions. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include <assert.h> +#include <stdlib.h> + +int main(void) +{ + union { + float f[2]; + double d; + } a; + float b; + + a.f[0] = 1.2345; + a.f[1] = 999; + b = 6.789; + asm("mdeb %[a],%[b]" : [a] "+f" (a.d) : [b] "R" (b)); + assert(a.d > 8.38 && a.d < 8.39); + + a.f[0] = 1.2345; + a.f[1] = 999; + b = 6.789; + asm("mdebr %[a],%[b]" : [a] "+f" (a.d) : [b] "f" (b)); + assert(a.d > 8.38 && a.d < 8.39); + + 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/mdeb.c | 30 ++++++++++++++++++++++++++++++ 2 files changed, 31 insertions(+) create mode 100644 tests/tcg/s390x/mdeb.c