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author | LIU Zhiwei <zhiwei_liu@c-sky.com> | 2020-07-01 23:25:19 +0800 |
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committer | Alistair Francis <alistair.francis@wdc.com> | 2020-07-02 09:19:33 -0700 |
commit | eeffab2ec1b332a5eb2d2dcd2732cdb57179c6eb (patch) | |
tree | baf9b9f7b8c8112ff9610540aeeac5870bb24f2a /target | |
parent | ce2a0343f441f0ee949690eabae5ab600397e2eb (diff) | |
download | qemu-eeffab2ec1b332a5eb2d2dcd2732cdb57179c6eb.zip qemu-eeffab2ec1b332a5eb2d2dcd2732cdb57179c6eb.tar.gz qemu-eeffab2ec1b332a5eb2d2dcd2732cdb57179c6eb.tar.bz2 |
target/riscv: vector widening floating-point add/subtract instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-32-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'target')
-rw-r--r-- | target/riscv/helper.h | 17 | ||||
-rw-r--r-- | target/riscv/insn32.decode | 8 | ||||
-rw-r--r-- | target/riscv/insn_trans/trans_rvv.inc.c | 149 | ||||
-rw-r--r-- | target/riscv/vector_helper.c | 83 |
4 files changed, 257 insertions, 0 deletions
diff --git a/target/riscv/helper.h b/target/riscv/helper.h index ba8a371..828b145 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -819,3 +819,20 @@ DEF_HELPER_6(vfsub_vf_d, void, ptr, ptr, i64, ptr, env, i32) DEF_HELPER_6(vfrsub_vf_h, void, ptr, ptr, i64, ptr, env, i32) DEF_HELPER_6(vfrsub_vf_w, void, ptr, ptr, i64, ptr, env, i32) DEF_HELPER_6(vfrsub_vf_d, void, ptr, ptr, i64, ptr, env, i32) + +DEF_HELPER_6(vfwadd_vv_h, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vfwadd_vv_w, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vfwsub_vv_h, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vfwsub_vv_w, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vfwadd_wv_h, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vfwadd_wv_w, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vfwsub_wv_h, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vfwsub_wv_w, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vfwadd_vf_h, void, ptr, ptr, i64, ptr, env, i32) +DEF_HELPER_6(vfwadd_vf_w, void, ptr, ptr, i64, ptr, env, i32) +DEF_HELPER_6(vfwsub_vf_h, void, ptr, ptr, i64, ptr, env, i32) +DEF_HELPER_6(vfwsub_vf_w, void, ptr, ptr, i64, ptr, env, i32) +DEF_HELPER_6(vfwadd_wf_h, void, ptr, ptr, i64, ptr, env, i32) +DEF_HELPER_6(vfwadd_wf_w, void, ptr, ptr, i64, ptr, env, i32) +DEF_HELPER_6(vfwsub_wf_h, void, ptr, ptr, i64, ptr, env, i32) +DEF_HELPER_6(vfwsub_wf_w, void, ptr, ptr, i64, ptr, env, i32) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index 9e26ed3..42d8a96 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -450,6 +450,14 @@ vfadd_vf 000000 . ..... ..... 101 ..... 1010111 @r_vm vfsub_vv 000010 . ..... ..... 001 ..... 1010111 @r_vm vfsub_vf 000010 . ..... ..... 101 ..... 1010111 @r_vm vfrsub_vf 100111 . ..... ..... 101 ..... 1010111 @r_vm +vfwadd_vv 110000 . ..... ..... 001 ..... 1010111 @r_vm +vfwadd_vf 110000 . ..... ..... 101 ..... 1010111 @r_vm +vfwadd_wv 110100 . ..... ..... 001 ..... 1010111 @r_vm +vfwadd_wf 110100 . ..... ..... 101 ..... 1010111 @r_vm +vfwsub_vv 110010 . ..... ..... 001 ..... 1010111 @r_vm +vfwsub_vf 110010 . ..... ..... 101 ..... 1010111 @r_vm +vfwsub_wv 110110 . ..... ..... 001 ..... 1010111 @r_vm +vfwsub_wf 110110 . ..... ..... 101 ..... 1010111 @r_vm vsetvli 0 ........... ..... 111 ..... 1010111 @r2_zimm vsetvl 1000000 ..... ..... 111 ..... 1010111 @r diff --git a/target/riscv/insn_trans/trans_rvv.inc.c b/target/riscv/insn_trans/trans_rvv.inc.c index 55a6e514..0224b66 100644 --- a/target/riscv/insn_trans/trans_rvv.inc.c +++ b/target/riscv/insn_trans/trans_rvv.inc.c @@ -1901,3 +1901,152 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ GEN_OPFVF_TRANS(vfadd_vf, opfvf_check) GEN_OPFVF_TRANS(vfsub_vf, opfvf_check) GEN_OPFVF_TRANS(vfrsub_vf, opfvf_check) + +/* Vector Widening Floating-Point Add/Subtract Instructions */ +static bool opfvv_widen_check(DisasContext *s, arg_rmrr *a) +{ + return (vext_check_isa_ill(s) && + vext_check_overlap_mask(s, a->rd, a->vm, true) && + vext_check_reg(s, a->rd, true) && + vext_check_reg(s, a->rs2, false) && + vext_check_reg(s, a->rs1, false) && + vext_check_overlap_group(a->rd, 2 << s->lmul, a->rs2, + 1 << s->lmul) && + vext_check_overlap_group(a->rd, 2 << s->lmul, a->rs1, + 1 << s->lmul) && + (s->lmul < 0x3) && (s->sew < 0x3) && (s->sew != 0)); +} + +/* OPFVV with WIDEN */ +#define GEN_OPFVV_WIDEN_TRANS(NAME, CHECK) \ +static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ +{ \ + if (CHECK(s, a)) { \ + uint32_t data = 0; \ + static gen_helper_gvec_4_ptr * const fns[2] = { \ + gen_helper_##NAME##_h, gen_helper_##NAME##_w, \ + }; \ + TCGLabel *over = gen_new_label(); \ + gen_set_rm(s, 7); \ + tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); \ + \ + data = FIELD_DP32(data, VDATA, MLEN, s->mlen); \ + data = FIELD_DP32(data, VDATA, VM, a->vm); \ + data = FIELD_DP32(data, VDATA, LMUL, s->lmul); \ + tcg_gen_gvec_4_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, 0), \ + vreg_ofs(s, a->rs1), \ + vreg_ofs(s, a->rs2), cpu_env, 0, \ + s->vlen / 8, data, fns[s->sew - 1]); \ + gen_set_label(over); \ + return true; \ + } \ + return false; \ +} + +GEN_OPFVV_WIDEN_TRANS(vfwadd_vv, opfvv_widen_check) +GEN_OPFVV_WIDEN_TRANS(vfwsub_vv, opfvv_widen_check) + +static bool opfvf_widen_check(DisasContext *s, arg_rmrr *a) +{ + return (vext_check_isa_ill(s) && + vext_check_overlap_mask(s, a->rd, a->vm, true) && + vext_check_reg(s, a->rd, true) && + vext_check_reg(s, a->rs2, false) && + vext_check_overlap_group(a->rd, 2 << s->lmul, a->rs2, + 1 << s->lmul) && + (s->lmul < 0x3) && (s->sew < 0x3) && (s->sew != 0)); +} + +/* OPFVF with WIDEN */ +#define GEN_OPFVF_WIDEN_TRANS(NAME) \ +static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ +{ \ + if (opfvf_widen_check(s, a)) { \ + uint32_t data = 0; \ + static gen_helper_opfvf *const fns[2] = { \ + gen_helper_##NAME##_h, gen_helper_##NAME##_w, \ + }; \ + gen_set_rm(s, 7); \ + data = FIELD_DP32(data, VDATA, MLEN, s->mlen); \ + data = FIELD_DP32(data, VDATA, VM, a->vm); \ + data = FIELD_DP32(data, VDATA, LMUL, s->lmul); \ + return opfvf_trans(a->rd, a->rs1, a->rs2, data, \ + fns[s->sew - 1], s); \ + } \ + return false; \ +} + +GEN_OPFVF_WIDEN_TRANS(vfwadd_vf) +GEN_OPFVF_WIDEN_TRANS(vfwsub_vf) + +static bool opfwv_widen_check(DisasContext *s, arg_rmrr *a) +{ + return (vext_check_isa_ill(s) && + vext_check_overlap_mask(s, a->rd, a->vm, true) && + vext_check_reg(s, a->rd, true) && + vext_check_reg(s, a->rs2, true) && + vext_check_reg(s, a->rs1, false) && + vext_check_overlap_group(a->rd, 2 << s->lmul, a->rs1, + 1 << s->lmul) && + (s->lmul < 0x3) && (s->sew < 0x3) && (s->sew != 0)); +} + +/* WIDEN OPFVV with WIDEN */ +#define GEN_OPFWV_WIDEN_TRANS(NAME) \ +static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ +{ \ + if (opfwv_widen_check(s, a)) { \ + uint32_t data = 0; \ + static gen_helper_gvec_4_ptr * const fns[2] = { \ + gen_helper_##NAME##_h, gen_helper_##NAME##_w, \ + }; \ + TCGLabel *over = gen_new_label(); \ + gen_set_rm(s, 7); \ + tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); \ + \ + data = FIELD_DP32(data, VDATA, MLEN, s->mlen); \ + data = FIELD_DP32(data, VDATA, VM, a->vm); \ + data = FIELD_DP32(data, VDATA, LMUL, s->lmul); \ + tcg_gen_gvec_4_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, 0), \ + vreg_ofs(s, a->rs1), \ + vreg_ofs(s, a->rs2), cpu_env, 0, \ + s->vlen / 8, data, fns[s->sew - 1]); \ + gen_set_label(over); \ + return true; \ + } \ + return false; \ +} + +GEN_OPFWV_WIDEN_TRANS(vfwadd_wv) +GEN_OPFWV_WIDEN_TRANS(vfwsub_wv) + +static bool opfwf_widen_check(DisasContext *s, arg_rmrr *a) +{ + return (vext_check_isa_ill(s) && + vext_check_overlap_mask(s, a->rd, a->vm, true) && + vext_check_reg(s, a->rd, true) && + vext_check_reg(s, a->rs2, true) && + (s->lmul < 0x3) && (s->sew < 0x3) && (s->sew != 0)); +} + +/* WIDEN OPFVF with WIDEN */ +#define GEN_OPFWF_WIDEN_TRANS(NAME) \ +static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ +{ \ + if (opfwf_widen_check(s, a)) { \ + uint32_t data = 0; \ + static gen_helper_opfvf *const fns[2] = { \ + gen_helper_##NAME##_h, gen_helper_##NAME##_w, \ + }; \ + gen_set_rm(s, 7); \ + data = FIELD_DP32(data, VDATA, MLEN, s->mlen); \ + data = FIELD_DP32(data, VDATA, VM, a->vm); \ + data = FIELD_DP32(data, VDATA, LMUL, s->lmul); \ + return opfvf_trans(a->rd, a->rs1, a->rs2, data, \ + fns[s->sew - 1], s); \ + } \ + return false; \ +} + +GEN_OPFWF_WIDEN_TRANS(vfwadd_wf) +GEN_OPFWF_WIDEN_TRANS(vfwsub_wf) diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index a2bbe84..b31f52b 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -3278,3 +3278,86 @@ RVVCALL(OPFVF2, vfrsub_vf_d, OP_UUU_D, H8, H8, float64_rsub) GEN_VEXT_VF(vfrsub_vf_h, 2, 2, clearh) GEN_VEXT_VF(vfrsub_vf_w, 4, 4, clearl) GEN_VEXT_VF(vfrsub_vf_d, 8, 8, clearq) + +/* Vector Widening Floating-Point Add/Subtract Instructions */ +static uint32_t vfwadd16(uint16_t a, uint16_t b, float_status *s) +{ + return float32_add(float16_to_float32(a, true, s), + float16_to_float32(b, true, s), s); +} + +static uint64_t vfwadd32(uint32_t a, uint32_t b, float_status *s) +{ + return float64_add(float32_to_float64(a, s), + float32_to_float64(b, s), s); + +} + +RVVCALL(OPFVV2, vfwadd_vv_h, WOP_UUU_H, H4, H2, H2, vfwadd16) +RVVCALL(OPFVV2, vfwadd_vv_w, WOP_UUU_W, H8, H4, H4, vfwadd32) +GEN_VEXT_VV_ENV(vfwadd_vv_h, 2, 4, clearl) +GEN_VEXT_VV_ENV(vfwadd_vv_w, 4, 8, clearq) +RVVCALL(OPFVF2, vfwadd_vf_h, WOP_UUU_H, H4, H2, vfwadd16) +RVVCALL(OPFVF2, vfwadd_vf_w, WOP_UUU_W, H8, H4, vfwadd32) +GEN_VEXT_VF(vfwadd_vf_h, 2, 4, clearl) +GEN_VEXT_VF(vfwadd_vf_w, 4, 8, clearq) + +static uint32_t vfwsub16(uint16_t a, uint16_t b, float_status *s) +{ + return float32_sub(float16_to_float32(a, true, s), + float16_to_float32(b, true, s), s); +} + +static uint64_t vfwsub32(uint32_t a, uint32_t b, float_status *s) +{ + return float64_sub(float32_to_float64(a, s), + float32_to_float64(b, s), s); + +} + +RVVCALL(OPFVV2, vfwsub_vv_h, WOP_UUU_H, H4, H2, H2, vfwsub16) +RVVCALL(OPFVV2, vfwsub_vv_w, WOP_UUU_W, H8, H4, H4, vfwsub32) +GEN_VEXT_VV_ENV(vfwsub_vv_h, 2, 4, clearl) +GEN_VEXT_VV_ENV(vfwsub_vv_w, 4, 8, clearq) +RVVCALL(OPFVF2, vfwsub_vf_h, WOP_UUU_H, H4, H2, vfwsub16) +RVVCALL(OPFVF2, vfwsub_vf_w, WOP_UUU_W, H8, H4, vfwsub32) +GEN_VEXT_VF(vfwsub_vf_h, 2, 4, clearl) +GEN_VEXT_VF(vfwsub_vf_w, 4, 8, clearq) + +static uint32_t vfwaddw16(uint32_t a, uint16_t b, float_status *s) +{ + return float32_add(a, float16_to_float32(b, true, s), s); +} + +static uint64_t vfwaddw32(uint64_t a, uint32_t b, float_status *s) +{ + return float64_add(a, float32_to_float64(b, s), s); +} + +RVVCALL(OPFVV2, vfwadd_wv_h, WOP_WUUU_H, H4, H2, H2, vfwaddw16) +RVVCALL(OPFVV2, vfwadd_wv_w, WOP_WUUU_W, H8, H4, H4, vfwaddw32) +GEN_VEXT_VV_ENV(vfwadd_wv_h, 2, 4, clearl) +GEN_VEXT_VV_ENV(vfwadd_wv_w, 4, 8, clearq) +RVVCALL(OPFVF2, vfwadd_wf_h, WOP_WUUU_H, H4, H2, vfwaddw16) +RVVCALL(OPFVF2, vfwadd_wf_w, WOP_WUUU_W, H8, H4, vfwaddw32) +GEN_VEXT_VF(vfwadd_wf_h, 2, 4, clearl) +GEN_VEXT_VF(vfwadd_wf_w, 4, 8, clearq) + +static uint32_t vfwsubw16(uint32_t a, uint16_t b, float_status *s) +{ + return float32_sub(a, float16_to_float32(b, true, s), s); +} + +static uint64_t vfwsubw32(uint64_t a, uint32_t b, float_status *s) +{ + return float64_sub(a, float32_to_float64(b, s), s); +} + +RVVCALL(OPFVV2, vfwsub_wv_h, WOP_WUUU_H, H4, H2, H2, vfwsubw16) +RVVCALL(OPFVV2, vfwsub_wv_w, WOP_WUUU_W, H8, H4, H4, vfwsubw32) +GEN_VEXT_VV_ENV(vfwsub_wv_h, 2, 4, clearl) +GEN_VEXT_VV_ENV(vfwsub_wv_w, 4, 8, clearq) +RVVCALL(OPFVF2, vfwsub_wf_h, WOP_WUUU_H, H4, H2, vfwsubw16) +RVVCALL(OPFVF2, vfwsub_wf_w, WOP_WUUU_W, H8, H4, vfwsubw32) +GEN_VEXT_VF(vfwsub_wf_h, 2, 4, clearl) +GEN_VEXT_VF(vfwsub_wf_w, 4, 8, clearq) |