diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2019-04-20 03:26:09 +0000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2019-05-22 15:09:43 -0400 |
| commit | 72b4c792c7a576d9246207a8e9a940ed9e191722 (patch) | |
| tree | 1fe255475359ff498b80615bc8b89610c71da9be /tcg | |
| parent | 17f79944ebeace8bf43047a33b7775ba5ed9070e (diff) | |
| download | qemu-72b4c792c7a576d9246207a8e9a940ed9e191722.zip qemu-72b4c792c7a576d9246207a8e9a940ed9e191722.tar.gz qemu-72b4c792c7a576d9246207a8e9a940ed9e191722.tar.bz2 | |
tcg: Expand vector minmax using cmp+cmpsel
Provide a generic fallback for the min/max operations.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/tcg-op-vec.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/tcg/tcg-op-vec.c b/tcg/tcg-op-vec.c index 004a349..501d963 100644 --- a/tcg/tcg-op-vec.c +++ b/tcg/tcg-op-vec.c @@ -120,6 +120,10 @@ bool tcg_can_emit_vecop_list(const TCGOpcode *list, } break; case INDEX_op_cmpsel_vec: + case INDEX_op_smin_vec: + case INDEX_op_smax_vec: + case INDEX_op_umin_vec: + case INDEX_op_umax_vec: if (tcg_can_emit_vec_op(INDEX_op_cmp_vec, type, vece)) { continue; } @@ -632,24 +636,32 @@ void tcg_gen_ussub_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b) do_op3_nofail(vece, r, a, b, INDEX_op_ussub_vec); } +static void do_minmax(unsigned vece, TCGv_vec r, TCGv_vec a, + TCGv_vec b, TCGOpcode opc, TCGCond cond) +{ + if (!do_op3(vece, r, a, b, opc)) { + tcg_gen_cmpsel_vec(cond, vece, r, a, b, a, b); + } +} + void tcg_gen_smin_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b) { - do_op3_nofail(vece, r, a, b, INDEX_op_smin_vec); + do_minmax(vece, r, a, b, INDEX_op_smin_vec, TCG_COND_LT); } void tcg_gen_umin_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b) { - do_op3_nofail(vece, r, a, b, INDEX_op_umin_vec); + do_minmax(vece, r, a, b, INDEX_op_umin_vec, TCG_COND_LTU); } void tcg_gen_smax_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b) { - do_op3_nofail(vece, r, a, b, INDEX_op_smax_vec); + do_minmax(vece, r, a, b, INDEX_op_smax_vec, TCG_COND_GT); } void tcg_gen_umax_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b) { - do_op3_nofail(vece, r, a, b, INDEX_op_umax_vec); + do_minmax(vece, r, a, b, INDEX_op_umax_vec, TCG_COND_GTU); } void tcg_gen_shlv_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b) |