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| author | Song Gao <gaosong@loongson.cn> | 2023-05-04 20:27:43 +0800 |
|---|---|---|
| committer | Song Gao <gaosong@loongson.cn> | 2023-05-06 11:19:46 +0800 |
| commit | cbe44190cce12d62d5867d31a7348fee684c9ed1 (patch) | |
| tree | aaa213392564670437fbbff908255e03610c3fb6 /target/loongarch/insn_trans | |
| parent | 4cc4c0f78b5798836714dffd75486e71237132fa (diff) | |
| download | qemu-cbe44190cce12d62d5867d31a7348fee684c9ed1.zip qemu-cbe44190cce12d62d5867d31a7348fee684c9ed1.tar.gz qemu-cbe44190cce12d62d5867d31a7348fee684c9ed1.tar.bz2 | |
target/loongarch: Implement vsat
This patch includes:
- VSAT.{B/H/W/D}[U].
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-18-gaosong@loongson.cn>
Diffstat (limited to 'target/loongarch/insn_trans')
| -rw-r--r-- | target/loongarch/insn_trans/trans_lsx.c.inc | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/target/loongarch/insn_trans/trans_lsx.c.inc b/target/loongarch/insn_trans/trans_lsx.c.inc index b295a9c..b8f05c6 100644 --- a/target/loongarch/insn_trans/trans_lsx.c.inc +++ b/target/loongarch/insn_trans/trans_lsx.c.inc @@ -2693,3 +2693,104 @@ TRANS(vmod_bu, gen_vvv, gen_helper_vmod_bu) TRANS(vmod_hu, gen_vvv, gen_helper_vmod_hu) TRANS(vmod_wu, gen_vvv, gen_helper_vmod_wu) TRANS(vmod_du, gen_vvv, gen_helper_vmod_du) + +static void gen_vsat_s(unsigned vece, TCGv_vec t, TCGv_vec a, TCGv_vec max) +{ + TCGv_vec min; + + min = tcg_temp_new_vec_matching(t); + tcg_gen_not_vec(vece, min, max); + tcg_gen_smax_vec(vece, t, a, min); + tcg_gen_smin_vec(vece, t, t, max); +} + +static void do_vsat_s(unsigned vece, uint32_t vd_ofs, uint32_t vj_ofs, + int64_t imm, uint32_t oprsz, uint32_t maxsz) +{ + static const TCGOpcode vecop_list[] = { + INDEX_op_smax_vec, INDEX_op_smin_vec, 0 + }; + static const GVecGen2s op[4] = { + { + .fniv = gen_vsat_s, + .fno = gen_helper_vsat_b, + .opt_opc = vecop_list, + .vece = MO_8 + }, + { + .fniv = gen_vsat_s, + .fno = gen_helper_vsat_h, + .opt_opc = vecop_list, + .vece = MO_16 + }, + { + .fniv = gen_vsat_s, + .fno = gen_helper_vsat_w, + .opt_opc = vecop_list, + .vece = MO_32 + }, + { + .fniv = gen_vsat_s, + .fno = gen_helper_vsat_d, + .opt_opc = vecop_list, + .vece = MO_64 + }, + }; + + tcg_gen_gvec_2s(vd_ofs, vj_ofs, oprsz, maxsz, + tcg_constant_i64((1ll<< imm) -1), &op[vece]); +} + +TRANS(vsat_b, gvec_vv_i, MO_8, do_vsat_s) +TRANS(vsat_h, gvec_vv_i, MO_16, do_vsat_s) +TRANS(vsat_w, gvec_vv_i, MO_32, do_vsat_s) +TRANS(vsat_d, gvec_vv_i, MO_64, do_vsat_s) + +static void gen_vsat_u(unsigned vece, TCGv_vec t, TCGv_vec a, TCGv_vec max) +{ + tcg_gen_umin_vec(vece, t, a, max); +} + +static void do_vsat_u(unsigned vece, uint32_t vd_ofs, uint32_t vj_ofs, + int64_t imm, uint32_t oprsz, uint32_t maxsz) +{ + uint64_t max; + static const TCGOpcode vecop_list[] = { + INDEX_op_umin_vec, 0 + }; + static const GVecGen2s op[4] = { + { + .fniv = gen_vsat_u, + .fno = gen_helper_vsat_bu, + .opt_opc = vecop_list, + .vece = MO_8 + }, + { + .fniv = gen_vsat_u, + .fno = gen_helper_vsat_hu, + .opt_opc = vecop_list, + .vece = MO_16 + }, + { + .fniv = gen_vsat_u, + .fno = gen_helper_vsat_wu, + .opt_opc = vecop_list, + .vece = MO_32 + }, + { + .fniv = gen_vsat_u, + .fno = gen_helper_vsat_du, + .opt_opc = vecop_list, + .vece = MO_64 + }, + }; + + max = (imm == 0x3f) ? UINT64_MAX : (1ull << (imm + 1)) - 1; + tcg_gen_gvec_2s(vd_ofs, vj_ofs, oprsz, maxsz, + tcg_constant_i64(max), &op[vece]); +} + +TRANS(vsat_bu, gvec_vv_i, MO_8, do_vsat_u) +TRANS(vsat_hu, gvec_vv_i, MO_16, do_vsat_u) +TRANS(vsat_wu, gvec_vv_i, MO_32, do_vsat_u) +TRANS(vsat_du, gvec_vv_i, MO_64, do_vsat_u) |