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| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2023-07-04 10:12:35 +0200 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2023-07-10 15:34:24 +0200 |
| commit | 85411ac9b3e1164c4deb2e9eed6c152ef64f2c51 (patch) | |
| tree | e14720b55f2b71cb68106f56c5f5779d61920fef /tests/tcg/s390x | |
| parent | 028dc70e1826ab182a84fb4ed43241fef1320a02 (diff) | |
| download | qemu-85411ac9b3e1164c4deb2e9eed6c152ef64f2c51.zip qemu-85411ac9b3e1164c4deb2e9eed6c152ef64f2c51.tar.gz qemu-85411ac9b3e1164c4deb2e9eed6c152ef64f2c51.tar.bz2 | |
tests/tcg/s390x: Test MDEB and MDEBR
Add a small test to prevent regressions.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Message-Id: <20230704081506.276055-12-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'tests/tcg/s390x')
| -rw-r--r-- | tests/tcg/s390x/Makefile.target | 1 | ||||
| -rw-r--r-- | tests/tcg/s390x/mdeb.c | 30 |
2 files changed, 31 insertions, 0 deletions
diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target index dbf64c9..19fbbc6 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 0000000..4897d28 --- /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; +} |