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| author | LIU Zhiwei <zhiwei_liu@c-sky.com> | 2020-07-01 23:25:24 +0800 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2020-07-02 09:19:33 -0700 |
| commit | d9e4ce72a5a0f7c404156d40d3252d4d6a9d6a36 (patch) | |
| tree | 373931f600dcd33409e128a6bda967d47cb83074 /target/riscv/insn_trans | |
| parent | 0dd509594fbd53fc9c3edc79bd7a575f079c3c87 (diff) | |
target/riscv: vector floating-point square-root instruction
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: <20200701152549.1218-37-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'target/riscv/insn_trans')
| -rw-r--r-- | target/riscv/insn_trans/trans_rvv.inc.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/target/riscv/insn_trans/trans_rvv.inc.c b/target/riscv/insn_trans/trans_rvv.inc.c index 3a5fd0cf89..e875c0e48a 100644 --- a/target/riscv/insn_trans/trans_rvv.inc.c +++ b/target/riscv/insn_trans/trans_rvv.inc.c @@ -2089,3 +2089,46 @@ GEN_OPFVF_WIDEN_TRANS(vfwmacc_vf) GEN_OPFVF_WIDEN_TRANS(vfwnmacc_vf) GEN_OPFVF_WIDEN_TRANS(vfwmsac_vf) GEN_OPFVF_WIDEN_TRANS(vfwnmsac_vf) + +/* Vector Floating-Point Square-Root Instruction */ + +/* + * If the current SEW does not correspond to a supported IEEE floating-point + * type, an illegal instruction exception is raised + */ +static bool opfv_check(DisasContext *s, arg_rmr *a) +{ + return (vext_check_isa_ill(s) && + vext_check_overlap_mask(s, a->rd, a->vm, false) && + vext_check_reg(s, a->rd, false) && + vext_check_reg(s, a->rs2, false) && + (s->sew != 0)); +} + +#define GEN_OPFV_TRANS(NAME, CHECK) \ +static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ +{ \ + if (CHECK(s, a)) { \ + uint32_t data = 0; \ + static gen_helper_gvec_3_ptr * const fns[3] = { \ + gen_helper_##NAME##_h, \ + gen_helper_##NAME##_w, \ + gen_helper_##NAME##_d, \ + }; \ + 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_3_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, 0), \ + 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_OPFV_TRANS(vfsqrt_v, opfv_check) |