Reuse the existing helpers.
Signed-off-by: David Hildenbrand <da...@redhat.com>
---
tests/tcg/s390x/Makefile.target | 1 +
tests/tcg/s390x/helper.h | 6 ++++++
tests/tcg/s390x/vlgv.c | 37 +++++++++++++++++++++++++++++++++
3 files changed, 44 insertions(+)
create mode 100644 tests/tcg/s390x/vlgv.c
diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target
index 474c2428bd..deffc4c525 100644
--- a/tests/tcg/s390x/Makefile.target
+++ b/tests/tcg/s390x/Makefile.target
@@ -8,6 +8,7 @@ TESTS+=exrl-trtr
TESTS+=pack
VECTOR_TESTS=vge
+VECTOR_TESTS+=vlgv
TESTS+=$(VECTOR_TESTS)
#enable vectors and optimisation for vector tests
diff --git a/tests/tcg/s390x/helper.h b/tests/tcg/s390x/helper.h
index ecbd97519b..790ced7ad7 100644
--- a/tests/tcg/s390x/helper.h
+++ b/tests/tcg/s390x/helper.h
@@ -11,6 +11,12 @@ typedef union S390Vector {
uint8_t h[16];
} S390Vector;
+#define ES_8 0
+#define ES_16 1
+#define ES_32 2
+#define ES_64 3
+#define ES_128 4
+
static inline void check(const char *s, bool cond)
{
if (!cond) {
diff --git a/tests/tcg/s390x/vlgv.c b/tests/tcg/s390x/vlgv.c
new file mode 100644
index 0000000000..2a4cca3bbb
--- /dev/null
+++ b/tests/tcg/s390x/vlgv.c
@@ -0,0 +1,37 @@
+#include <stdint.h>
+#include <unistd.h>
+#include "signal-helper.inc.c"
+
+static inline void vlgv(uint64_t *r1, S390Vector *v3, const void *a2,
+ uint8_t m4)
+{
+ asm volatile("vlgv %[r1], %[v3], 0(%[a2]), %[m4]\n"
+ : [r1] "+d" (*r1),
+ [v3] "+v" (v3->v)
+ : [a2] "d" (a2),
+ [m4] "i" (m4));
+}
+
+int main(void)
+{
+ S390Vector v3 = {
+ .q[0] = 0x0011223344556677ull,
+ .q[1] = 0x8899aabbccddeeffull,
+ };
+ uint64_t r1 = 0;
+
+ /* Directly set all ignored bits to */
+ vlgv(&r1, &v3, (void *)(7 | ~0xf), ES_8);
+ check("8 bit", r1 == 0x77);
+ vlgv(&r1, &v3, (void *)(4 | ~0x7), ES_16);
+ check("16 bit", r1 == 0x8899);
+ vlgv(&r1, &v3, (void *)(3 | ~0x3), ES_32);
+ check("32 bit", r1 == 0xccddeeff);
+ vlgv(&r1, &v3, (void *)(1 | ~0x1), ES_64);
+ check("64 bit", r1 == 0x8899aabbccddeeffull);
+ check("v3 not modified", v3.q[0] == 0x0011223344556677ull &&
+ v3.q[1] == 0x8899aabbccddeeffull);
+
+ CHECK_SIGILL(vlgv(&r1, &v3, NULL, ES_128));
+ return 0;
+}
--
2.17.2
