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- From 943f59cdb3255cf6e353565ee1d9360e67f9c5c5 Mon Sep 17 00:00:00 2001
- From: Frank Chang <frank.chang@sifive.com>
- Date: Tue, 4 Aug 2020 10:27:28 +0800
- Subject: [PATCH 044/107] target/riscv: rvv-1.0: floating-point move
- instruction
- NaN-boxed the scalar floating-point register based on RVV 1.0's rules.
- Signed-off-by: Frank Chang <frank.chang@sifive.com>
- Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
- ---
- target/riscv/insn_trans/trans_rvv.c.inc | 16 ++++++++++++++--
- 1 file changed, 14 insertions(+), 2 deletions(-)
- diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc
- index d83d30c101..0c8b5e232d 100644
- --- a/target/riscv/insn_trans/trans_rvv.c.inc
- +++ b/target/riscv/insn_trans/trans_rvv.c.inc
- @@ -2691,9 +2691,15 @@ static bool trans_vfmv_v_f(DisasContext *s, arg_vfmv_v_f *a)
- require_rvf(s) &&
- vext_check_isa_ill(s) &&
- require_align(a->rd, s->lmul)) {
- + TCGv_i64 t1;
- +
- if (s->vl_eq_vlmax) {
- + t1 = tcg_temp_new_i64();
- + /* NaN-box f[rs1] */
- + do_nanbox(s, t1, cpu_fpr[a->rs1]);
- +
- tcg_gen_gvec_dup_i64(s->sew, vreg_ofs(s, a->rd),
- - MAXSZ(s), MAXSZ(s), cpu_fpr[a->rs1]);
- + MAXSZ(s), MAXSZ(s), t1);
- mark_vs_dirty(s);
- } else {
- TCGv_ptr dest;
- @@ -2707,16 +2713,22 @@ static bool trans_vfmv_v_f(DisasContext *s, arg_vfmv_v_f *a)
- TCGLabel *over = gen_new_label();
- tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over);
-
- + t1 = tcg_temp_new_i64();
- + /* NaN-box f[rs1] */
- + do_nanbox(s, t1, cpu_fpr[a->rs1]);
- +
- dest = tcg_temp_new_ptr();
- desc = tcg_const_i32(simd_desc(0, s->vlen / 8, data));
- tcg_gen_addi_ptr(dest, cpu_env, vreg_ofs(s, a->rd));
- - fns[s->sew - 1](dest, cpu_fpr[a->rs1], cpu_env, desc);
- +
- + fns[s->sew - 1](dest, t1, cpu_env, desc);
-
- tcg_temp_free_ptr(dest);
- tcg_temp_free_i32(desc);
- mark_vs_dirty(s);
- gen_set_label(over);
- }
- + tcg_temp_free_i64(t1);
- return true;
- }
- return false;
- --
- 2.33.1
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