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| author | Richard Henderson <richard.henderson@linaro.org> | 2020-04-19 18:01:52 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2020-06-02 08:42:37 -0700 |
| commit | b0f7e7444c03da17e41bf327c8aea590104a28ab (patch) | |
| tree | 8f3924b2a96e628be571d6d000aa27f63cf58d19 /tcg/tcg-op-vec.c | |
| parent | cccdd8c7971896c339d59c9c5d4647d4ffd9568a (diff) | |
| download | qemu-b0f7e7444c03da17e41bf327c8aea590104a28ab.zip qemu-b0f7e7444c03da17e41bf327c8aea590104a28ab.tar.gz qemu-b0f7e7444c03da17e41bf327c8aea590104a28ab.tar.bz2 | |
tcg: Implement gvec support for rotate by immediate
No host backend support yet, but the interfaces for rotli
are in place. Canonicalize immediate rotate to the left,
based on a survey of architectures, but provide both left
and right shift interfaces to the translators.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/tcg-op-vec.c')
| -rw-r--r-- | tcg/tcg-op-vec.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tcg/tcg-op-vec.c b/tcg/tcg-op-vec.c index b6937e8..660ad9b 100644 --- a/tcg/tcg-op-vec.c +++ b/tcg/tcg-op-vec.c @@ -545,6 +545,18 @@ void tcg_gen_sari_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i) do_shifti(INDEX_op_sari_vec, vece, r, a, i); } +void tcg_gen_rotli_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i) +{ + do_shifti(INDEX_op_rotli_vec, vece, r, a, i); +} + +void tcg_gen_rotri_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i) +{ + int bits = 8 << vece; + tcg_debug_assert(i >= 0 && i < bits); + do_shifti(INDEX_op_rotli_vec, vece, r, a, -i & (bits - 1)); +} + void tcg_gen_cmp_vec(TCGCond cond, unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b) { |