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tcg: Implement gvec support for rotate by scalar

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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>
This commit is contained in:
Richard Henderson 2020-04-20 08:22:44 -07:00
parent 3d5bb2ea5c
commit 23850a74af
10 changed files with 37 additions and 0 deletions
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2
tcg/tcg.c
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@ -1663,6 +1663,8 @@ bool tcg_op_supported(TCGOpcode op)
return have_vec && TCG_TARGET_HAS_shv_vec;
case INDEX_op_rotli_vec:
return have_vec && TCG_TARGET_HAS_roti_vec;
case INDEX_op_rotls_vec:
return have_vec && TCG_TARGET_HAS_rots_vec;
case INDEX_op_rotlv_vec:
case INDEX_op_rotrv_vec:
return have_vec && TCG_TARGET_HAS_rotv_vec;