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[59.124.168.89]) by smtp.gmail.com with ESMTPSA id f4sm2087955pfg.34.2021.12.09.23.58.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Dec 2021 23:58:06 -0800 (PST) From: frank.chang@sifive.com To: qemu-devel@nongnu.org Subject: [PATCH v11 15/77] target/riscv: rvv-1.0: update check functions Date: Fri, 10 Dec 2021 15:56:01 +0800 Message-Id: <20211210075704.23951-16-frank.chang@sifive.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211210075704.23951-1-frank.chang@sifive.com> References: <20211210075704.23951-1-frank.chang@sifive.com> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::1036 (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::1036; envelope-from=frank.chang@sifive.com; helo=mail-pj1-x1036.google.com X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 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_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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: , Cc: qemu-riscv@nongnu.org, Frank Chang , Bin Meng , Richard Henderson , Alistair Francis , Palmer Dabbelt , LIU Zhiwei Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Frank Chang Update check functions with RVV 1.0 rules. Signed-off-by: Frank Chang Reviewed-by: Alistair Francis --- target/riscv/insn_trans/trans_rvv.c.inc | 715 +++++++++++++++++------- 1 file changed, 507 insertions(+), 208 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc index ecd4b89c6b..bef37dd888 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -19,11 +19,112 @@ #include "tcg/tcg-gvec-desc.h" #include "internals.h" +static inline bool is_overlapped(const int8_t astart, int8_t asize, + const int8_t bstart, int8_t bsize) +{ + const int8_t aend = astart + asize; + const int8_t bend = bstart + bsize; + + return MAX(aend, bend) - MIN(astart, bstart) < asize + bsize; +} + +static bool require_rvv(DisasContext *s) +{ + return s->mstatus_vs != 0; +} + +static bool require_rvf(DisasContext *s) +{ + if (s->mstatus_fs == 0) { + return false; + } + + switch (s->sew) { + case MO_16: + case MO_32: + return has_ext(s, RVF); + case MO_64: + return has_ext(s, RVD); + default: + return false; + } +} + +static bool require_scale_rvf(DisasContext *s) +{ + if (s->mstatus_fs == 0) { + return false; + } + + switch (s->sew) { + case MO_8: + case MO_16: + return has_ext(s, RVF); + case MO_32: + return has_ext(s, RVD); + default: + return false; + } +} + +/* Destination vector register group cannot overlap source mask register. */ +static bool require_vm(int vm, int vd) +{ + return (vm != 0 || vd != 0); +} + +/* + * Vector register should aligned with the passed-in LMUL (EMUL). + * If LMUL < 0, i.e. fractional LMUL, any vector register is allowed. + */ +static bool require_align(const int8_t val, const int8_t lmul) +{ + return lmul <= 0 || extract32(val, 0, lmul) == 0; +} + +/* + * A destination vector register group can overlap a source vector + * register group only if one of the following holds: + * 1. The destination EEW equals the source EEW. + * 2. The destination EEW is smaller than the source EEW and the overlap + * is in the lowest-numbered part of the source register group. + * 3. The destination EEW is greater than the source EEW, the source EMUL + * is at least 1, and the overlap is in the highest-numbered part of + * the destination register group. + * (Section 5.2) + * + * This function returns true if one of the following holds: + * * Destination vector register group does not overlap a source vector + * register group. + * * Rule 3 met. + * For rule 1, overlap is allowed so this function doesn't need to be called. + * For rule 2, (vd == vs). Caller has to check whether: (vd != vs) before + * calling this function. + */ +static bool require_noover(const int8_t dst, const int8_t dst_lmul, + const int8_t src, const int8_t src_lmul) +{ + int8_t dst_size = dst_lmul <= 0 ? 1 : 1 << dst_lmul; + int8_t src_size = src_lmul <= 0 ? 1 : 1 << src_lmul; + + /* Destination EEW is greater than the source EEW, check rule 3. */ + if (dst_size > src_size) { + if (dst < src && + src_lmul >= 0 && + is_overlapped(dst, dst_size, src, src_size) && + !is_overlapped(dst, dst_size, src + src_size, src_size)) { + return true; + } + } + + return !is_overlapped(dst, dst_size, src, src_size); +} + static bool trans_vsetvl(DisasContext *ctx, arg_vsetvl *a) { TCGv s1, s2, dst; - if (!has_ext(ctx, RVV)) { + if (!require_rvv(ctx) || !has_ext(ctx, RVV)) { return false; } @@ -51,7 +152,7 @@ static bool trans_vsetvli(DisasContext *ctx, arg_vsetvli *a) { TCGv s1, s2, dst; - if (!has_ext(ctx, RVV)) { + if (!require_rvv(ctx) || !has_ext(ctx, RVV)) { return false; } @@ -82,6 +183,237 @@ static uint32_t vreg_ofs(DisasContext *s, int reg) /* check functions */ +static bool vext_check_ss(DisasContext *s, int vd, int vs, int vm) +{ + return require_vm(vm, vd) && + require_align(vd, s->lmul) && + require_align(vs, s->lmul); +} + +/* + * Check function for vector instruction with format: + * single-width result and single-width sources (SEW = SEW op SEW) + * + * Rules to be checked here: + * 1. Destination vector register group for a masked vector + * instruction cannot overlap the source mask register (v0). + * (Section 5.3) + * 2. Destination vector register number is multiples of LMUL. + * (Section 3.4.2) + * 3. Source (vs2, vs1) vector register number are multiples of LMUL. + * (Section 3.4.2) + */ +static bool vext_check_sss(DisasContext *s, int vd, int vs1, int vs2, int vm) +{ + return vext_check_ss(s, vd, vs2, vm) && + require_align(vs1, s->lmul); +} + +static bool vext_check_ms(DisasContext *s, int vd, int vs) +{ + bool ret = require_align(vs, s->lmul); + if (vd != vs) { + ret &= require_noover(vd, 0, vs, s->lmul); + } + return ret; +} + +/* + * Check function for maskable vector instruction with format: + * single-width result and single-width sources (SEW = SEW op SEW) + * + * Rules to be checked here: + * 1. Source (vs2, vs1) vector register number are multiples of LMUL. + * (Section 3.4.2) + * 2. Destination vector register cannot overlap a source vector + * register (vs2, vs1) group. + * (Section 5.2) + * 3. The destination vector register group for a masked vector + * instruction cannot overlap the source mask register (v0), + * unless the destination vector register is being written + * with a mask value (e.g., comparisons) or the scalar result + * of a reduction. (Section 5.3) + */ +static bool vext_check_mss(DisasContext *s, int vd, int vs1, int vs2) +{ + bool ret = vext_check_ms(s, vd, vs2) && + require_align(vs1, s->lmul); + if (vd != vs1) { + ret &= require_noover(vd, 0, vs1, s->lmul); + } + return ret; +} + +/* + * Common check function for vector widening instructions + * of double-width result (2*SEW). + * + * Rules to be checked here: + * 1. The largest vector register group used by an instruction + * can not be greater than 8 vector registers (Section 5.2): + * => LMUL < 8. + * => SEW < 64. + * 2. Destination vector register number is multiples of 2 * LMUL. + * (Section 3.4.2) + * 3. Destination vector register group for a masked vector + * instruction cannot overlap the source mask register (v0). + * (Section 5.3) + */ +static bool vext_wide_check_common(DisasContext *s, int vd, int vm) +{ + return (s->lmul <= 2) && + (s->sew < MO_64) && + require_align(vd, s->lmul + 1) && + require_vm(vm, vd); +} + +/* + * Common check function for vector narrowing instructions + * of single-width result (SEW) and double-width source (2*SEW). + * + * Rules to be checked here: + * 1. The largest vector register group used by an instruction + * can not be greater than 8 vector registers (Section 5.2): + * => LMUL < 8. + * => SEW < 64. + * 2. Source vector register number is multiples of 2 * LMUL. + * (Section 3.4.2) + * 3. Destination vector register number is multiples of LMUL. + * (Section 3.4.2) + * 4. Destination vector register group for a masked vector + * instruction cannot overlap the source mask register (v0). + * (Section 5.3) + */ +static bool vext_narrow_check_common(DisasContext *s, int vd, int vs2, + int vm) +{ + return (s->lmul <= 2) && + (s->sew < MO_64) && + require_align(vs2, s->lmul + 1) && + require_align(vd, s->lmul) && + require_vm(vm, vd); +} + +static bool vext_check_ds(DisasContext *s, int vd, int vs, int vm) +{ + return vext_wide_check_common(s, vd, vm) && + require_align(vs, s->lmul) && + require_noover(vd, s->lmul + 1, vs, s->lmul); +} + +static bool vext_check_dd(DisasContext *s, int vd, int vs, int vm) +{ + return vext_wide_check_common(s, vd, vm) && + require_align(vs, s->lmul + 1); +} + +/* + * Check function for vector instruction with format: + * double-width result and single-width sources (2*SEW = SEW op SEW) + * + * Rules to be checked here: + * 1. All rules in defined in widen common rules are applied. + * 2. Source (vs2, vs1) vector register number are multiples of LMUL. + * (Section 3.4.2) + * 3. Destination vector register cannot overlap a source vector + * register (vs2, vs1) group. + * (Section 5.2) + */ +static bool vext_check_dss(DisasContext *s, int vd, int vs1, int vs2, int vm) +{ + return vext_check_ds(s, vd, vs2, vm) && + require_align(vs1, s->lmul) && + require_noover(vd, s->lmul + 1, vs1, s->lmul); +} + +/* + * Check function for vector instruction with format: + * double-width result and double-width source1 and single-width + * source2 (2*SEW = 2*SEW op SEW) + * + * Rules to be checked here: + * 1. All rules in defined in widen common rules are applied. + * 2. Source 1 (vs2) vector register number is multiples of 2 * LMUL. + * (Section 3.4.2) + * 3. Source 2 (vs1) vector register number is multiples of LMUL. + * (Section 3.4.2) + * 4. Destination vector register cannot overlap a source vector + * register (vs1) group. + * (Section 5.2) + */ +static bool vext_check_dds(DisasContext *s, int vd, int vs1, int vs2, int vm) +{ + return vext_check_ds(s, vd, vs1, vm) && + require_align(vs2, s->lmul + 1); +} + +static bool vext_check_sd(DisasContext *s, int vd, int vs, int vm) +{ + bool ret = vext_narrow_check_common(s, vd, vs, vm); + if (vd != vs) { + ret &= require_noover(vd, s->lmul, vs, s->lmul + 1); + } + return ret; +} + +/* + * Check function for vector instruction with format: + * single-width result and double-width source 1 and single-width + * source 2 (SEW = 2*SEW op SEW) + * + * Rules to be checked here: + * 1. All rules in defined in narrow common rules are applied. + * 2. Destination vector register cannot overlap a source vector + * register (vs2) group. + * (Section 5.2) + * 3. Source 2 (vs1) vector register number is multiples of LMUL. + * (Section 3.4.2) + */ +static bool vext_check_sds(DisasContext *s, int vd, int vs1, int vs2, int vm) +{ + return vext_check_sd(s, vd, vs2, vm) && + require_align(vs1, s->lmul); +} + +/* + * Check function for vector reduction instructions. + * + * Rules to be checked here: + * 1. Source 1 (vs2) vector register number is multiples of LMUL. + * (Section 3.4.2) + */ +static bool vext_check_reduction(DisasContext *s, int vs2) +{ + return require_align(vs2, s->lmul); +} + +/* + * Check function for vector slide instructions. + * + * Rules to be checked here: + * 1. Source 1 (vs2) vector register number is multiples of LMUL. + * (Section 3.4.2) + * 2. Destination vector register number is multiples of LMUL. + * (Section 3.4.2) + * 3. Destination vector register group for a masked vector + * instruction cannot overlap the source mask register (v0). + * (Section 5.3) + * 4. The destination vector register group for vslideup, vslide1up, + * vfslide1up, cannot overlap the source vector register (vs2) group. + * (Section 5.2, 16.3.1, 16.3.3) + */ +static bool vext_check_slide(DisasContext *s, int vd, int vs2, + int vm, bool is_over) +{ + bool ret = require_align(vs2, s->lmul) && + require_align(vd, s->lmul) && + require_vm(vm, vd); + if (is_over) { + ret &= (vd != vs2); + } + return ret; +} + /* * In cpu_get_tb_cpu_state(), set VILL if RVV was not present. * So RVV is also be checked in this function. @@ -139,6 +471,7 @@ static inline bool vext_check_overlap_group(int rd, int dlen, int rs, int slen) { return ((rd >= rs + slen) || (rs >= rd + dlen)); } + /* common translation macro */ #define GEN_VEXT_TRANS(NAME, SEQ, ARGTYPE, OP, CHECK) \ static bool trans_##NAME(DisasContext *s, arg_##ARGTYPE *a)\ @@ -787,11 +1120,9 @@ GEN_VEXT_TRANS(vamomaxud_v, 17, rwdvm, amo_op, amo_check64) static bool opivv_check(DisasContext *s, arg_rmrr *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) && - vext_check_reg(s, a->rs1, false)); + return require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_sss(s, a->rd, a->rs1, a->rs2, a->vm); } typedef void GVecGen3Fn(unsigned, uint32_t, uint32_t, @@ -879,10 +1210,9 @@ static bool opivx_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, uint32_t vm, static bool opivx_check(DisasContext *s, arg_rmrr *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)); + return require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_ss(s, a->rd, a->rs2, a->vm); } typedef void GVecGen2sFn(unsigned, uint32_t, uint32_t, TCGv_i64, @@ -1073,16 +1403,9 @@ GEN_OPIVI_GVEC_TRANS(vrsub_vi, 0, vrsub_vx, rsubi) /* OPIVV with WIDEN */ static bool opivv_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)); + return require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_dss(s, a->rd, a->rs1, a->rs2, a->vm); } static bool do_opivv_widen(DisasContext *s, arg_rmrr *a, @@ -1127,13 +1450,9 @@ GEN_OPIVV_WIDEN_TRANS(vwsub_vv, opivv_widen_check) /* OPIVX with WIDEN */ static bool opivx_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)); + return require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_ds(s, a->rd, a->rs2, a->vm); } static bool do_opivx_widen(DisasContext *s, arg_rmrr *a, @@ -1164,14 +1483,9 @@ GEN_OPIVX_WIDEN_TRANS(vwsub_vx) /* WIDEN OPIVV with WIDEN */ static bool opiwv_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)); + return require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_dds(s, a->rd, a->rs1, a->rs2, a->vm); } static bool do_opiwv_widen(DisasContext *s, arg_rmrr *a, @@ -1214,11 +1528,9 @@ GEN_OPIWV_WIDEN_TRANS(vwsub_wv) /* WIDEN OPIVX with WIDEN */ static bool opiwx_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)); + return require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_dd(s, a->rd, a->rs2, a->vm); } static bool do_opiwx_widen(DisasContext *s, arg_rmrr *a, @@ -1280,11 +1592,10 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ */ static bool opivv_vadc_check(DisasContext *s, arg_rmrr *a) { - return (vext_check_isa_ill(s) && - vext_check_reg(s, a->rd, false) && - vext_check_reg(s, a->rs2, false) && - vext_check_reg(s, a->rs1, false) && - ((a->rd != 0) || (s->lmul == 0))); + return require_rvv(s) && + vext_check_isa_ill(s) && + (a->rd != 0) && + vext_check_sss(s, a->rd, a->rs1, a->rs2, a->vm); } GEN_OPIVV_TRANS(vadc_vvm, opivv_vadc_check) @@ -1296,11 +1607,9 @@ GEN_OPIVV_TRANS(vsbc_vvm, opivv_vadc_check) */ static bool opivv_vmadc_check(DisasContext *s, arg_rmrr *a) { - return (vext_check_isa_ill(s) && - vext_check_reg(s, a->rs2, false) && - vext_check_reg(s, a->rs1, false) && - vext_check_overlap_group(a->rd, 1, a->rs1, 1 << s->lmul) && - vext_check_overlap_group(a->rd, 1, a->rs2, 1 << s->lmul)); + return require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_mss(s, a->rd, a->rs1, a->rs2); } GEN_OPIVV_TRANS(vmadc_vvm, opivv_vmadc_check) @@ -1308,10 +1617,10 @@ GEN_OPIVV_TRANS(vmsbc_vvm, opivv_vmadc_check) static bool opivx_vadc_check(DisasContext *s, arg_rmrr *a) { - return (vext_check_isa_ill(s) && - vext_check_reg(s, a->rd, false) && - vext_check_reg(s, a->rs2, false) && - ((a->rd != 0) || (s->lmul == 0))); + return require_rvv(s) && + vext_check_isa_ill(s) && + (a->rd != 0) && + vext_check_ss(s, a->rd, a->rs2, a->vm); } /* OPIVX without GVEC IR */ @@ -1334,9 +1643,9 @@ GEN_OPIVX_TRANS(vsbc_vxm, opivx_vadc_check) static bool opivx_vmadc_check(DisasContext *s, arg_rmrr *a) { - return (vext_check_isa_ill(s) && - vext_check_reg(s, a->rs2, false) && - vext_check_overlap_group(a->rd, 1, a->rs2, 1 << s->lmul)); + return require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_ms(s, a->rd, a->rs2); } GEN_OPIVX_TRANS(vmadc_vxm, opivx_vmadc_check) @@ -1424,14 +1733,9 @@ GEN_OPIVI_GVEC_TRANS(vsra_vi, 1, vsra_vx, sari) /* Vector Narrowing Integer Right Shift Instructions */ static bool opivv_narrow_check(DisasContext *s, arg_rmrr *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, true) && - vext_check_reg(s, a->rs1, false) && - vext_check_overlap_group(a->rd, 1 << s->lmul, a->rs2, - 2 << s->lmul) && - (s->lmul < 0x3) && (s->sew < 0x3)); + return require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_sds(s, a->rd, a->rs1, a->rs2, a->vm); } /* OPIVV with NARROW */ @@ -1466,13 +1770,9 @@ GEN_OPIVV_NARROW_TRANS(vnsrl_vv) static bool opivx_narrow_check(DisasContext *s, arg_rmrr *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, true) && - vext_check_overlap_group(a->rd, 1 << s->lmul, a->rs2, - 2 << s->lmul) && - (s->lmul < 0x3) && (s->sew < 0x3)); + return require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_sd(s, a->rd, a->rs2, a->vm); } /* OPIVX with NARROW */ @@ -1520,13 +1820,11 @@ GEN_OPIVI_NARROW_TRANS(vnsrl_vi, 1, vnsrl_vx) */ static bool opivv_cmp_check(DisasContext *s, arg_rmrr *a) { - return (vext_check_isa_ill(s) && - vext_check_reg(s, a->rs2, false) && - vext_check_reg(s, a->rs1, false) && - ((vext_check_overlap_group(a->rd, 1, a->rs1, 1 << s->lmul) && - vext_check_overlap_group(a->rd, 1, a->rs2, 1 << s->lmul)) || - (s->lmul == 0))); + return require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_mss(s, a->rd, a->rs1, a->rs2); } + GEN_OPIVV_TRANS(vmseq_vv, opivv_cmp_check) GEN_OPIVV_TRANS(vmsne_vv, opivv_cmp_check) GEN_OPIVV_TRANS(vmsltu_vv, opivv_cmp_check) @@ -1536,10 +1834,9 @@ GEN_OPIVV_TRANS(vmsle_vv, opivv_cmp_check) static bool opivx_cmp_check(DisasContext *s, arg_rmrr *a) { - return (vext_check_isa_ill(s) && - vext_check_reg(s, a->rs2, false) && - (vext_check_overlap_group(a->rd, 1, a->rs2, 1 << s->lmul) || - (s->lmul == 0))); + return require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_ms(s, a->rd, a->rs2); } GEN_OPIVX_TRANS(vmseq_vx, opivx_cmp_check) @@ -1618,10 +1915,10 @@ GEN_OPIVX_WIDEN_TRANS(vwmaccus_vx) /* Vector Integer Merge and Move Instructions */ static bool trans_vmv_v_v(DisasContext *s, arg_vmv_v_v *a) { - if (vext_check_isa_ill(s) && - vext_check_reg(s, a->rd, false) && - vext_check_reg(s, a->rs1, false)) { - + if (require_rvv(s) && + vext_check_isa_ill(s) && + /* vmv.v.v has rs2 = 0 and vm = 1 */ + vext_check_sss(s, a->rd, a->rs1, 0, 1)) { if (s->vl_eq_vlmax) { tcg_gen_gvec_mov(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs1), @@ -1649,9 +1946,10 @@ static bool trans_vmv_v_v(DisasContext *s, arg_vmv_v_v *a) typedef void gen_helper_vmv_vx(TCGv_ptr, TCGv_i64, TCGv_env, TCGv_i32); static bool trans_vmv_v_x(DisasContext *s, arg_vmv_v_x *a) { - if (vext_check_isa_ill(s) && - vext_check_reg(s, a->rd, false)) { - + if (require_rvv(s) && + vext_check_isa_ill(s) && + /* vmv.v.x has rs2 = 0 and vm = 1 */ + vext_check_ss(s, a->rd, 0, 1)) { TCGv s1; TCGLabel *over = gen_new_label(); tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); @@ -1689,9 +1987,10 @@ static bool trans_vmv_v_x(DisasContext *s, arg_vmv_v_x *a) static bool trans_vmv_v_i(DisasContext *s, arg_vmv_v_i *a) { - if (vext_check_isa_ill(s) && - vext_check_reg(s, a->rd, false)) { - + if (require_rvv(s) && + vext_check_isa_ill(s) && + /* vmv.v.i has rs2 = 0 and vm = 1 */ + vext_check_ss(s, a->rd, 0, 1)) { int64_t simm = sextract64(a->rs1, 0, 5); if (s->vl_eq_vlmax) { tcg_gen_gvec_dup_imm(s->sew, vreg_ofs(s, a->rd), @@ -1791,12 +2090,10 @@ GEN_OPIVI_NARROW_TRANS(vnclip_vi, 1, vnclip_vx) */ static bool opfvv_check(DisasContext *s, arg_rmrr *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) && - vext_check_reg(s, a->rs1, false) && - (s->sew != 0)); + return require_rvv(s) && + require_rvf(s) && + vext_check_isa_ill(s) && + vext_check_sss(s, a->rd, a->rs1, a->rs2, a->vm); } /* OPFVV without GVEC IR */ @@ -1861,17 +2158,16 @@ static bool opfvf_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, return true; } -static bool opfvf_check(DisasContext *s, arg_rmrr *a) -{ /* * If the current SEW does not correspond to a supported IEEE floating-point * type, an illegal instruction exception is raised */ - 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)); +static bool opfvf_check(DisasContext *s, arg_rmrr *a) +{ + return require_rvv(s) && + require_rvf(s) && + vext_check_isa_ill(s) && + vext_check_ss(s, a->rd, a->rs2, a->vm); } /* OPFVF without GVEC IR */ @@ -1901,16 +2197,10 @@ 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)); + return require_rvv(s) && + require_rvf(s) && + vext_check_isa_ill(s) && + vext_check_dss(s, a->rd, a->rs1, a->rs2, a->vm); } /* OPFVV with WIDEN */ @@ -1945,13 +2235,10 @@ 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)); + return require_rvv(s) && + require_rvf(s) && + vext_check_isa_ill(s) && + vext_check_ds(s, a->rd, a->rs2, a->vm); } /* OPFVF with WIDEN */ @@ -1977,14 +2264,10 @@ 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)); + return require_rvv(s) && + require_rvf(s) && + vext_check_isa_ill(s) && + vext_check_dds(s, a->rd, a->rs1, a->rs2, a->vm); } /* WIDEN OPFVV with WIDEN */ @@ -2019,11 +2302,10 @@ 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)); + return require_rvv(s) && + require_rvf(s) && + vext_check_isa_ill(s) && + vext_check_dd(s, a->rd, a->rs2, a->vm); } /* WIDEN OPFVF with WIDEN */ @@ -2094,11 +2376,11 @@ GEN_OPFVF_WIDEN_TRANS(vfwnmsac_vf) */ 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)); + return require_rvv(s) && + require_rvf(s) && + vext_check_isa_ill(s) && + /* OPFV instructions ignore vs1 check */ + vext_check_ss(s, a->rd, a->rs2, a->vm); } #define GEN_OPFV_TRANS(NAME, CHECK) \ @@ -2147,13 +2429,10 @@ GEN_OPFVF_TRANS(vfsgnjx_vf, opfvf_check) /* Vector Floating-Point Compare Instructions */ static bool opfvv_cmp_check(DisasContext *s, arg_rmrr *a) { - return (vext_check_isa_ill(s) && - vext_check_reg(s, a->rs2, false) && - vext_check_reg(s, a->rs1, false) && - (s->sew != 0) && - ((vext_check_overlap_group(a->rd, 1, a->rs1, 1 << s->lmul) && - vext_check_overlap_group(a->rd, 1, a->rs2, 1 << s->lmul)) || - (s->lmul == 0))); + return require_rvv(s) && + require_rvf(s) && + vext_check_isa_ill(s) && + vext_check_mss(s, a->rd, a->rs1, a->rs2); } GEN_OPFVV_TRANS(vmfeq_vv, opfvv_cmp_check) @@ -2164,11 +2443,10 @@ GEN_OPFVV_TRANS(vmford_vv, opfvv_cmp_check) static bool opfvf_cmp_check(DisasContext *s, arg_rmrr *a) { - return (vext_check_isa_ill(s) && - vext_check_reg(s, a->rs2, false) && - (s->sew != 0) && - (vext_check_overlap_group(a->rd, 1, a->rs2, 1 << s->lmul) || - (s->lmul == 0))); + return require_rvv(s) && + require_rvf(s) && + vext_check_isa_ill(s) && + vext_check_ms(s, a->rd, a->rs2); } GEN_OPFVF_TRANS(vmfeq_vf, opfvf_cmp_check) @@ -2187,10 +2465,10 @@ GEN_OPFVF_TRANS(vfmerge_vfm, opfvf_check) static bool trans_vfmv_v_f(DisasContext *s, arg_vfmv_v_f *a) { - if (vext_check_isa_ill(s) && - vext_check_reg(s, a->rd, false) && - (s->sew != 0)) { - + if (require_rvv(s) && + require_rvf(s) && + vext_check_isa_ill(s) && + require_align(a->rd, s->lmul)) { if (s->vl_eq_vlmax) { tcg_gen_gvec_dup_i64(s->sew, vreg_ofs(s, a->rd), MAXSZ(s), MAXSZ(s), cpu_fpr[a->rs1]); @@ -2235,13 +2513,11 @@ GEN_OPFV_TRANS(vfcvt_f_x_v, opfv_check) */ static bool opfv_widen_check(DisasContext *s, arg_rmr *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)); + return require_rvv(s) && + require_scale_rvf(s) && + (s->sew != MO_8) && + vext_check_isa_ill(s) && + vext_check_ds(s, a->rd, a->rs2, a->vm); } #define GEN_OPFV_WIDEN_TRANS(NAME) \ @@ -2284,13 +2560,12 @@ GEN_OPFV_WIDEN_TRANS(vfwcvt_f_f_v) */ static bool opfv_narrow_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, true) && - vext_check_overlap_group(a->rd, 1 << s->lmul, a->rs2, - 2 << s->lmul) && - (s->lmul < 0x3) && (s->sew < 0x3) && (s->sew != 0)); + return require_rvv(s) && + require_rvf(s) && + (s->sew != MO_64) && + vext_check_isa_ill(s) && + /* OPFV narrowing instructions ignore vs1 check */ + vext_check_sd(s, a->rd, a->rs2, a->vm); } #define GEN_OPFV_NARROW_TRANS(NAME) \ @@ -2331,7 +2606,9 @@ GEN_OPFV_NARROW_TRANS(vfncvt_f_f_v) /* Vector Single-Width Integer Reduction Instructions */ static bool reduction_check(DisasContext *s, arg_rmrr *a) { - return vext_check_isa_ill(s) && vext_check_reg(s, a->rs2, false); + return require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_reduction(s, a->rs2); } GEN_OPIVV_TRANS(vredsum_vs, reduction_check) @@ -2344,8 +2621,13 @@ GEN_OPIVV_TRANS(vredor_vs, reduction_check) GEN_OPIVV_TRANS(vredxor_vs, reduction_check) /* Vector Widening Integer Reduction Instructions */ -GEN_OPIVV_WIDEN_TRANS(vwredsum_vs, reduction_check) -GEN_OPIVV_WIDEN_TRANS(vwredsumu_vs, reduction_check) +static bool reduction_widen_check(DisasContext *s, arg_rmrr *a) +{ + return reduction_check(s, a) && (s->sew < MO_64); +} + +GEN_OPIVV_WIDEN_TRANS(vwredsum_vs, reduction_widen_check) +GEN_OPIVV_WIDEN_TRANS(vwredsumu_vs, reduction_widen_check) /* Vector Single-Width Floating-Point Reduction Instructions */ GEN_OPFVV_TRANS(vfredsum_vs, reduction_check) @@ -2393,7 +2675,8 @@ GEN_MM_TRANS(vmxnor_mm) /* Vector mask population count vmpopc */ static bool trans_vmpopc_m(DisasContext *s, arg_rmr *a) { - if (vext_check_isa_ill(s)) { + if (require_rvv(s) && + vext_check_isa_ill(s)) { TCGv_ptr src2, mask; TCGv dst; TCGv_i32 desc; @@ -2422,7 +2705,8 @@ static bool trans_vmpopc_m(DisasContext *s, arg_rmr *a) /* vmfirst find-first-set mask bit */ static bool trans_vmfirst_m(DisasContext *s, arg_rmr *a) { - if (vext_check_isa_ill(s)) { + if (require_rvv(s) && + vext_check_isa_ill(s)) { TCGv_ptr src2, mask; TCGv dst; TCGv_i32 desc; @@ -2480,10 +2764,11 @@ GEN_M_TRANS(vmsof_m) /* Vector Iota Instruction */ static bool trans_viota_m(DisasContext *s, arg_viota_m *a) { - if (vext_check_isa_ill(s) && - vext_check_reg(s, a->rd, false) && - vext_check_overlap_group(a->rd, 1 << s->lmul, a->rs2, 1) && - (a->vm != 0 || a->rd != 0)) { + if (require_rvv(s) && + vext_check_isa_ill(s) && + require_noover(a->rd, s->lmul, a->rs2, 0) && + require_vm(a->vm, a->rd) && + require_align(a->rd, s->lmul)) { uint32_t data = 0; TCGLabel *over = gen_new_label(); tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); @@ -2507,9 +2792,10 @@ static bool trans_viota_m(DisasContext *s, arg_viota_m *a) /* Vector Element Index Instruction */ static bool trans_vid_v(DisasContext *s, arg_vid_v *a) { - if (vext_check_isa_ill(s) && - vext_check_reg(s, a->rd, false) && - vext_check_overlap_mask(s, a->rd, a->vm, false)) { + if (require_rvv(s) && + vext_check_isa_ill(s) && + require_align(a->rd, s->lmul) && + require_vm(a->vm, a->rd)) { uint32_t data = 0; TCGLabel *over = gen_new_label(); tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); @@ -2758,41 +3044,48 @@ static bool trans_vfmv_s_f(DisasContext *s, arg_vfmv_s_f *a) /* Vector Slide Instructions */ static bool slideup_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, false) && - vext_check_reg(s, a->rs2, false) && - (a->rd != a->rs2)); + return require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_slide(s, a->rd, a->rs2, a->vm, true); } GEN_OPIVX_TRANS(vslideup_vx, slideup_check) GEN_OPIVX_TRANS(vslide1up_vx, slideup_check) GEN_OPIVI_TRANS(vslideup_vi, 1, vslideup_vx, slideup_check) -GEN_OPIVX_TRANS(vslidedown_vx, opivx_check) -GEN_OPIVX_TRANS(vslide1down_vx, opivx_check) -GEN_OPIVI_TRANS(vslidedown_vi, 1, vslidedown_vx, opivx_check) +static bool slidedown_check(DisasContext *s, arg_rmrr *a) +{ + return require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_slide(s, a->rd, a->rs2, a->vm, false); +} + +GEN_OPIVX_TRANS(vslidedown_vx, slidedown_check) +GEN_OPIVX_TRANS(vslide1down_vx, slidedown_check) +GEN_OPIVI_TRANS(vslidedown_vi, 1, vslidedown_vx, slidedown_check) /* Vector Register Gather Instruction */ static bool vrgather_vv_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, false) && - vext_check_reg(s, a->rs1, false) && - vext_check_reg(s, a->rs2, false) && - (a->rd != a->rs2) && (a->rd != a->rs1)); + return require_rvv(s) && + vext_check_isa_ill(s) && + require_align(a->rd, s->lmul) && + require_align(a->rs1, s->lmul) && + require_align(a->rs2, s->lmul) && + (a->rd != a->rs2 && a->rd != a->rs1) && + require_vm(a->vm, a->rd); } GEN_OPIVV_TRANS(vrgather_vv, vrgather_vv_check) static bool vrgather_vx_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, false) && - vext_check_reg(s, a->rs2, false) && - (a->rd != a->rs2)); + return require_rvv(s) && + vext_check_isa_ill(s) && + require_align(a->rd, s->lmul) && + require_align(a->rs2, s->lmul) && + (a->rd != a->rs2) && + require_vm(a->vm, a->rd); } /* vrgather.vx vd, vs2, rs1, vm # vd[i] = (x[rs1] >= VLMAX) ? 0 : vs2[rs1] */ @@ -2853,14 +3146,20 @@ static bool trans_vrgather_vi(DisasContext *s, arg_rmrr *a) return true; } -/* Vector Compress Instruction */ +/* + * Vector Compress Instruction + * + * The destination vector register group cannot overlap the + * source vector register group or the source mask register. + */ static bool vcompress_vm_check(DisasContext *s, arg_r *a) { - return (vext_check_isa_ill(s) && - vext_check_reg(s, a->rd, false) && - vext_check_reg(s, a->rs2, false) && - vext_check_overlap_group(a->rd, 1 << s->lmul, a->rs1, 1) && - (a->rd != a->rs2)); + return require_rvv(s) && + vext_check_isa_ill(s) && + require_align(a->rd, s->lmul) && + require_align(a->rs2, s->lmul) && + (a->rd != a->rs2) && + !is_overlapped(a->rd, 1 << MAX(s->lmul, 0), a->rs1, 1); } static bool trans_vcompress_vm(DisasContext *s, arg_r *a)