diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2020-04-20 08:22:44 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2020-06-02 08:42:37 -0700 |
| commit | 23850a74afb641102325b4b7f74071d929fc4594 (patch) | |
| tree | eb46a0b212d8b2b74220bf427a8af78feb884c60 /tcg/tcg-op-gvec.c | |
| parent | 3d5bb2ea5cc9ed54f65a6929a6e6baa01cabd98b (diff) | |
tcg: Implement gvec support for rotate by scalar
No host backend support yet, but the interfaces for rotls
are in place. Only implement left-rotate for now, as the
only known use of vector rotate by scalar is s390x, so any
right-rotate would be unused and untestable.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/tcg-op-gvec.c')
| -rw-r--r-- | tcg/tcg-op-gvec.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tcg/tcg-op-gvec.c b/tcg/tcg-op-gvec.c index 2b71725883..3707c0effb 100644 --- a/tcg/tcg-op-gvec.c +++ b/tcg/tcg-op-gvec.c @@ -2976,6 +2976,28 @@ void tcg_gen_gvec_sars(unsigned vece, uint32_t dofs, uint32_t aofs, do_gvec_shifts(vece, dofs, aofs, shift, oprsz, maxsz, &g); } +void tcg_gen_gvec_rotls(unsigned vece, uint32_t dofs, uint32_t aofs, + TCGv_i32 shift, uint32_t oprsz, uint32_t maxsz) +{ + static const GVecGen2sh g = { + .fni4 = tcg_gen_rotl_i32, + .fni8 = tcg_gen_rotl_i64, + .fniv_s = tcg_gen_rotls_vec, + .fniv_v = tcg_gen_rotlv_vec, + .fno = { + gen_helper_gvec_rotl8i, + gen_helper_gvec_rotl16i, + gen_helper_gvec_rotl32i, + gen_helper_gvec_rotl64i, + }, + .s_list = { INDEX_op_rotls_vec, 0 }, + .v_list = { INDEX_op_rotlv_vec, 0 }, + }; + + tcg_debug_assert(vece <= MO_64); + do_gvec_shifts(vece, dofs, aofs, shift, oprsz, maxsz, &g); +} + /* * Expand D = A << (B % element bits) * |