diff options
| author | David Hildenbrand <david@redhat.com> | 2019-03-07 13:15:21 +0100 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2019-03-11 09:31:01 +0100 |
| commit | 60e9e3f1b0117a3aefd4a8047168f1c20f6c9013 (patch) | |
| tree | d6e00fd62c6110d65549451b0ec6c3299246e6c7 /target/s390x/helper.h | |
| parent | 0a85f8257aa9aac4b71b9d57fa8e250321163aea (diff) | |
s390x/tcg: Implement VECTOR LOAD TO BLOCK BOUNDARY
Very similar to LOAD COUNT TO BLOCK BOUNDARY, but instead of only
calculating, the actual vector is loaded. Use a temporary vector to
not modify the real vector on exceptions. Initialize that one to zero,
to not leak any data. Provide a fast path if we're loading a full
vector.
As we don't have gvec ool handlers for single vectors, just calculate
the vector address manually.
We can reuse the helper later on for VECTOR LOAD WITH LENGTH. In fact,
we are going to name it "vll" right from the beginning, because that's
a better match.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-15-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target/s390x/helper.h')
| -rw-r--r-- | target/s390x/helper.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/target/s390x/helper.h b/target/s390x/helper.h index bb659257f6..6c745ba0f6 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -124,6 +124,9 @@ DEF_HELPER_5(msa, i32, env, i32, i32, i32, i32) DEF_HELPER_FLAGS_1(stpt, TCG_CALL_NO_RWG, i64, env) DEF_HELPER_FLAGS_1(stck, TCG_CALL_NO_RWG_SE, i64, env) +/* === Vector Support Instructions === */ +DEF_HELPER_FLAGS_4(vll, TCG_CALL_NO_WG, void, env, ptr, i64, i64) + #ifndef CONFIG_USER_ONLY DEF_HELPER_3(servc, i32, env, i64, i64) DEF_HELPER_4(diag, void, env, i32, i32, i32) |