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During the execution phase, some instructions may change env->vstart, but the flag remains the same as at the start of the block. With some combinations of instructions this causes an illegal instruction exception. This patch simultaneously updates flag and env->vstart and to avoid inconsistency. Signed-off-by: Ivan Klokov Signed-off-by: Daniel Henrique Barboza Reviewed-by: Richard Henderson --- target/riscv/insn_trans/trans_rvbf16.c.inc | 6 +- target/riscv/insn_trans/trans_rvv.c.inc | 82 +++++++++++----------- target/riscv/insn_trans/trans_rvvk.c.inc | 12 ++-- target/riscv/translate.c | 6 ++ 4 files changed, 56 insertions(+), 50 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvbf16.c.inc b/target/riscv/insn_trans/trans_rvbf16.c.inc index 8ee99df3f3..96e3e73530 100644 --- a/target/riscv/insn_trans/trans_rvbf16.c.inc +++ b/target/riscv/insn_trans/trans_rvbf16.c.inc @@ -86,7 +86,7 @@ static bool trans_vfncvtbf16_f_f_w(DisasContext *ctx, arg_vfncvtbf16_f_f_w *a) ctx->cfg_ptr->vlenb, ctx->cfg_ptr->vlenb, data, gen_helper_vfncvtbf16_f_f_w); - mark_vs_dirty(ctx); + finalize_rvv_inst(ctx); gen_set_label(over); return true; } @@ -115,7 +115,7 @@ static bool trans_vfwcvtbf16_f_f_v(DisasContext *ctx, arg_vfwcvtbf16_f_f_v *a) ctx->cfg_ptr->vlenb, ctx->cfg_ptr->vlenb, data, gen_helper_vfwcvtbf16_f_f_v); - mark_vs_dirty(ctx); + finalize_rvv_inst(ctx); gen_set_label(over); return true; } @@ -146,7 +146,7 @@ static bool trans_vfwmaccbf16_vv(DisasContext *ctx, arg_vfwmaccbf16_vv *a) ctx->cfg_ptr->vlenb, ctx->cfg_ptr->vlenb, data, gen_helper_vfwmaccbf16_vv); - mark_vs_dirty(ctx); + finalize_rvv_inst(ctx); gen_set_label(over); return true; } diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc index 5436d9e3ef..bf8ec82a70 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -167,7 +167,7 @@ static bool do_vsetvl(DisasContext *s, int rd, int rs1, TCGv s2) gen_helper_vsetvl(dst, tcg_env, s1, s2); gen_set_gpr(s, rd, dst); - mark_vs_dirty(s); + finalize_rvv_inst(s); gen_update_pc(s, s->cur_insn_len); lookup_and_goto_ptr(s); @@ -187,7 +187,7 @@ static bool do_vsetivli(DisasContext *s, int rd, TCGv s1, TCGv s2) gen_helper_vsetvl(dst, tcg_env, s1, s2); gen_set_gpr(s, rd, dst); - mark_vs_dirty(s); + finalize_rvv_inst(s); gen_update_pc(s, s->cur_insn_len); lookup_and_goto_ptr(s); s->base.is_jmp = DISAS_NORETURN; @@ -639,7 +639,7 @@ static bool ldst_us_trans(uint32_t vd, uint32_t rs1, uint32_t data, fn(dest, mask, base, tcg_env, desc); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } @@ -797,7 +797,7 @@ static bool ldst_stride_trans(uint32_t vd, uint32_t rs1, uint32_t rs2, fn(dest, mask, base, stride, tcg_env, desc); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } @@ -901,7 +901,7 @@ static bool ldst_index_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, fn(dest, mask, base, index, tcg_env, desc); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } @@ -1032,7 +1032,7 @@ static bool ldff_trans(uint32_t vd, uint32_t rs1, uint32_t data, fn(dest, mask, base, tcg_env, desc); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } @@ -1091,7 +1091,7 @@ static bool ldst_whole_trans(uint32_t vd, uint32_t rs1, uint32_t nf, fn(dest, base, tcg_env, desc); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } @@ -1182,7 +1182,7 @@ do_opivv_gvec(DisasContext *s, arg_rmrr *a, GVecGen3Fn *gvec_fn, tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fn); } - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } @@ -1233,7 +1233,7 @@ static bool opivx_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, uint32_t vm, fn(dest, mask, src1, src2, tcg_env, desc); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } @@ -1258,7 +1258,7 @@ do_opivx_gvec(DisasContext *s, arg_rmrr *a, GVecGen2sFn *gvec_fn, gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2), src1, MAXSZ(s), MAXSZ(s)); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return opivx_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s); @@ -1391,7 +1391,7 @@ static bool opivi_trans(uint32_t vd, uint32_t imm, uint32_t vs2, uint32_t vm, fn(dest, mask, src1, src2, tcg_env, desc); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } @@ -1405,7 +1405,7 @@ do_opivi_gvec(DisasContext *s, arg_rmrr *a, GVecGen2iFn *gvec_fn, if (a->vm && s->vl_eq_vlmax && !(s->vta && s->lmul < 0)) { gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2), extract_imm(s, a->rs1, imm_mode), MAXSZ(s), MAXSZ(s)); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return opivi_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s, imm_mode); @@ -1464,7 +1464,7 @@ static bool do_opivv_widen(DisasContext *s, arg_rmrr *a, tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fn); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -1536,7 +1536,7 @@ static bool do_opiwv_widen(DisasContext *s, arg_rmrr *a, vreg_ofs(s, a->rs2), tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fn); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -1604,7 +1604,7 @@ static bool opivv_trans(uint32_t vd, uint32_t vs1, uint32_t vs2, uint32_t vm, tcg_gen_gvec_4_ptr(vreg_ofs(s, vd), vreg_ofs(s, 0), vreg_ofs(s, vs1), vreg_ofs(s, vs2), tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fn); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } @@ -1737,7 +1737,7 @@ do_opivx_gvec_shift(DisasContext *s, arg_rmrr *a, GVecGen2sFn32 *gvec_fn, gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2), src1, MAXSZ(s), MAXSZ(s)); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return opivx_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s); @@ -1794,7 +1794,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -1997,7 +1997,7 @@ static bool trans_vmv_v_v(DisasContext *s, arg_vmv_v_v *a) s->cfg_ptr->vlenb, data, fns[s->sew]); } - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -2042,7 +2042,7 @@ static bool trans_vmv_v_x(DisasContext *s, arg_vmv_v_x *a) fns[s->sew](dest, s1_i64, tcg_env, desc); } - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -2076,7 +2076,7 @@ static bool trans_vmv_v_i(DisasContext *s, arg_vmv_v_i *a) tcg_gen_addi_ptr(dest, tcg_env, vreg_ofs(s, a->rd)); fns[s->sew](dest, s1, tcg_env, desc); } - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -2224,7 +2224,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew - 1]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -2258,7 +2258,7 @@ static bool opfvf_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, fn(dest, mask, t1, src2, tcg_env, desc); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } @@ -2333,7 +2333,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew - 1]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -2404,7 +2404,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew - 1]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -2516,7 +2516,7 @@ static bool do_opfv(DisasContext *s, arg_rmr *a, vreg_ofs(s, a->rs2), tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fn); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -2626,7 +2626,7 @@ static bool trans_vfmv_v_f(DisasContext *s, arg_vfmv_v_f *a) fns[s->sew - 1](dest, t1, tcg_env, desc); } - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -2698,7 +2698,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew - 1]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -2746,7 +2746,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -2810,7 +2810,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew - 1]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -2856,7 +2856,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -2942,7 +2942,7 @@ static bool trans_##NAME(DisasContext *s, arg_r *a) \ vreg_ofs(s, a->rs2), tcg_env, \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, fn); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -3041,7 +3041,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ tcg_env, s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, \ data, fn); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -3080,7 +3080,7 @@ static bool trans_viota_m(DisasContext *s, arg_viota_m *a) vreg_ofs(s, a->rs2), tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fns[s->sew]); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -3107,7 +3107,7 @@ static bool trans_vid_v(DisasContext *s, arg_vid_v *a) tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fns[s->sew]); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -3286,7 +3286,7 @@ static bool trans_vmv_s_x(DisasContext *s, arg_vmv_s_x *a) s1 = get_gpr(s, a->rs1, EXT_NONE); tcg_gen_ext_tl_i64(t1, s1); vec_element_storei(s, a->rd, 0, t1); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -3334,7 +3334,7 @@ static bool trans_vfmv_s_f(DisasContext *s, arg_vfmv_s_f *a) do_nanbox(s, t1, cpu_fpr[a->rs1]); vec_element_storei(s, a->rd, 0, t1); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -3440,7 +3440,7 @@ static bool trans_vrgather_vx(DisasContext *s, arg_rmrr *a) tcg_gen_gvec_dup_i64(s->sew, vreg_ofs(s, a->rd), MAXSZ(s), MAXSZ(s), dest); - mark_vs_dirty(s); + finalize_rvv_inst(s); } else { static gen_helper_opivx * const fns[4] = { gen_helper_vrgather_vx_b, gen_helper_vrgather_vx_h, @@ -3468,7 +3468,7 @@ static bool trans_vrgather_vi(DisasContext *s, arg_rmrr *a) endian_ofs(s, a->rs2, a->rs1), MAXSZ(s), MAXSZ(s)); } - mark_vs_dirty(s); + finalize_rvv_inst(s); } else { static gen_helper_opivx * const fns[4] = { gen_helper_vrgather_vx_b, gen_helper_vrgather_vx_h, @@ -3513,7 +3513,7 @@ static bool trans_vcompress_vm(DisasContext *s, arg_r *a) tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fns[s->sew]); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -3538,7 +3538,7 @@ static bool trans_##NAME(DisasContext *s, arg_##NAME * a) \ tcg_gen_gvec_2_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2), \ tcg_env, maxsz, maxsz, 0, gen_helper_vmvr_v); \ } \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -3609,7 +3609,7 @@ static bool int_ext_op(DisasContext *s, arg_rmr *a, uint8_t seq) s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fn); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } diff --git a/target/riscv/insn_trans/trans_rvvk.c.inc b/target/riscv/insn_trans/trans_rvvk.c.inc index 6d640e4596..ae1f40174a 100644 --- a/target/riscv/insn_trans/trans_rvvk.c.inc +++ b/target/riscv/insn_trans/trans_rvvk.c.inc @@ -174,7 +174,7 @@ GEN_OPIVX_GVEC_TRANS_CHECK(vandn_vx, andcs, zvkb_vx_check) vreg_ofs(s, a->rs2), tcg_env, \ s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, \ data, fns[s->sew]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -266,7 +266,7 @@ GEN_OPIVI_WIDEN_TRANS(vwsll_vi, IMM_ZX, vwsll_vx, vwsll_vx_check) tcg_gen_addi_ptr(rd_v, tcg_env, vreg_ofs(s, a->rd)); \ tcg_gen_addi_ptr(rs2_v, tcg_env, vreg_ofs(s, a->rs2)); \ gen_helper_##NAME(rd_v, rs2_v, tcg_env, desc); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -341,7 +341,7 @@ GEN_V_UNMASKED_TRANS(vaesem_vs, vaes_check_vs, ZVKNED_EGS) tcg_gen_addi_ptr(rd_v, tcg_env, vreg_ofs(s, a->rd)); \ tcg_gen_addi_ptr(rs2_v, tcg_env, vreg_ofs(s, a->rs2)); \ gen_helper_##NAME(rd_v, rs2_v, uimm_v, tcg_env, desc); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -405,7 +405,7 @@ GEN_VI_UNMASKED_TRANS(vaeskf2_vi, vaeskf2_check, ZVKNED_EGS) s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, \ data, gen_helper_##NAME); \ \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -457,7 +457,7 @@ static bool trans_vsha2cl_vv(DisasContext *s, arg_rmrr *a) s->sew == MO_32 ? gen_helper_vsha2cl32_vv : gen_helper_vsha2cl64_vv); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -488,7 +488,7 @@ static bool trans_vsha2ch_vv(DisasContext *s, arg_rmrr *a) s->sew == MO_32 ? gen_helper_vsha2ch32_vv : gen_helper_vsha2ch64_vv); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 177418b2b9..09efc5f93c 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -674,6 +674,12 @@ static void mark_vs_dirty(DisasContext *ctx) static inline void mark_vs_dirty(DisasContext *ctx) { } #endif +static void finalize_rvv_inst(DisasContext *ctx) +{ + mark_vs_dirty(ctx); + ctx->vstart_eq_zero = true; +} + static void gen_set_rm(DisasContext *ctx, int rm) { if (ctx->frm == rm) {