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envelope-from=prvs=0135fdaf6=alistair.francis@opensource.wdc.com; helo=esa2.hgst.iphmx.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Frank Chang Vector widening conversion instructions are provided to and from all supported integer EEWs for Zve64f extension. Signed-off-by: Frank Chang Reviewed-by: Alistair Francis Message-id: 20220118014522.13613-9-frank.chang@sifive.com Signed-off-by: Alistair Francis --- target/riscv/insn_trans/trans_rvv.c.inc | 32 +++++++++++++++++++------ 1 file changed, 25 insertions(+), 7 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_= trans/trans_rvv.c.inc index 08f25e3ce4..58f12366dd 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -77,6 +77,17 @@ static bool require_zve64f(DisasContext *s) return s->ext_zve64f ? s->sew <=3D MO_32 : true; } =20 +static bool require_scale_zve64f(DisasContext *s) +{ + /* RVV + Zve64f =3D RVV. */ + if (has_ext(s, RVV)) { + return true; + } + + /* Zve64f doesn't support FP64. (Section 18.2) */ + return s->ext_zve64f ? s->sew <=3D MO_16 : true; +} + /* Destination vector register group cannot overlap source mask register= . */ static bool require_vm(int vm, int vd) { @@ -2333,7 +2344,8 @@ static bool opfvv_widen_check(DisasContext *s, arg_= rmrr *a) require_scale_rvf(s) && (s->sew !=3D MO_8) && vext_check_isa_ill(s) && - vext_check_dss(s, a->rd, a->rs1, a->rs2, a->vm); + vext_check_dss(s, a->rd, a->rs1, a->rs2, a->vm) && + require_scale_zve64f(s); } =20 /* OPFVV with WIDEN */ @@ -2372,7 +2384,8 @@ static bool opfvf_widen_check(DisasContext *s, arg_= rmrr *a) require_scale_rvf(s) && (s->sew !=3D MO_8) && vext_check_isa_ill(s) && - vext_check_ds(s, a->rd, a->rs2, a->vm); + vext_check_ds(s, a->rd, a->rs2, a->vm) && + require_scale_zve64f(s); } =20 /* OPFVF with WIDEN */ @@ -2402,7 +2415,8 @@ static bool opfwv_widen_check(DisasContext *s, arg_= rmrr *a) require_scale_rvf(s) && (s->sew !=3D MO_8) && vext_check_isa_ill(s) && - vext_check_dds(s, a->rd, a->rs1, a->rs2, a->vm); + vext_check_dds(s, a->rd, a->rs1, a->rs2, a->vm) && + require_scale_zve64f(s); } =20 /* WIDEN OPFVV with WIDEN */ @@ -2441,7 +2455,8 @@ static bool opfwf_widen_check(DisasContext *s, arg_= rmrr *a) require_scale_rvf(s) && (s->sew !=3D MO_8) && vext_check_isa_ill(s) && - vext_check_dd(s, a->rd, a->rs2, a->vm); + vext_check_dd(s, a->rd, a->rs2, a->vm) && + require_scale_zve64f(s); } =20 /* WIDEN OPFVF with WIDEN */ @@ -2700,14 +2715,16 @@ static bool opfv_widen_check(DisasContext *s, arg= _rmr *a) static bool opxfv_widen_check(DisasContext *s, arg_rmr *a) { return opfv_widen_check(s, a) && - require_rvf(s); + require_rvf(s) && + require_zve64f(s); } =20 static bool opffv_widen_check(DisasContext *s, arg_rmr *a) { return opfv_widen_check(s, a) && require_scale_rvf(s) && - (s->sew !=3D MO_8); + (s->sew !=3D MO_8) && + require_scale_zve64f(s); } =20 #define GEN_OPFV_WIDEN_TRANS(NAME, CHECK, HELPER, FRM) \ @@ -2758,7 +2775,8 @@ static bool opfxv_widen_check(DisasContext *s, arg_= rmr *a) require_scale_rvf(s) && vext_check_isa_ill(s) && /* OPFV widening instructions ignore vs1 check */ - vext_check_ds(s, a->rd, a->rs2, a->vm); + vext_check_ds(s, a->rd, a->rs2, a->vm) && + require_scale_zve64f(s); } =20 #define GEN_OPFXV_WIDEN_TRANS(NAME) \ --=20 2.31.1