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Exceptions include division, comparison and minmax. Begin using ctx->w, which allows elimination of gen_addw, gen_subw, gen_mulw. Reviewed-by: Bin Meng Reviewed-by: Alistair Francis Signed-off-by: Richard Henderson --- target/riscv/translate.c | 69 +++++++------------------ target/riscv/insn_trans/trans_rvb.c.inc | 30 +++++------ target/riscv/insn_trans/trans_rvi.c.inc | 39 ++++++++------ target/riscv/insn_trans/trans_rvm.c.inc | 16 +++--- 4 files changed, 64 insertions(+), 90 deletions(-) diff --git a/target/riscv/translate.c b/target/riscv/translate.c index d7552dc377..7dd2839288 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -230,7 +230,7 @@ static void gen_get_gpr(DisasContext *ctx, TCGv t, int = reg_num) tcg_gen_mov_tl(t, get_gpr(ctx, reg_num, EXT_NONE)); } =20 -static TCGv __attribute__((unused)) dest_gpr(DisasContext *ctx, int reg_nu= m) +static TCGv dest_gpr(DisasContext *ctx, int reg_num) { if (reg_num =3D=3D 0 || ctx->w) { return temp_new(ctx); @@ -482,57 +482,31 @@ static int ex_rvc_shifti(DisasContext *ctx, int imm) /* Include the auto-generated decoder for 32 bit insn */ #include "decode-insn32.c.inc" =20 -static bool gen_arith_imm_fn(DisasContext *ctx, arg_i *a, +static bool gen_arith_imm_fn(DisasContext *ctx, arg_i *a, DisasExtend ext, void (*func)(TCGv, TCGv, target_long)) { - TCGv source1; - source1 =3D tcg_temp_new(); + TCGv dest =3D dest_gpr(ctx, a->rd); + TCGv src1 =3D get_gpr(ctx, a->rs1, ext); =20 - gen_get_gpr(ctx, source1, a->rs1); + func(dest, src1, a->imm); =20 - (*func)(source1, source1, a->imm); - - gen_set_gpr(ctx, a->rd, source1); - tcg_temp_free(source1); + gen_set_gpr(ctx, a->rd, dest); return true; } =20 -static bool gen_arith_imm_tl(DisasContext *ctx, arg_i *a, +static bool gen_arith_imm_tl(DisasContext *ctx, arg_i *a, DisasExtend ext, void (*func)(TCGv, TCGv, TCGv)) { - TCGv source1, source2; - source1 =3D tcg_temp_new(); - source2 =3D tcg_temp_new(); + TCGv dest =3D dest_gpr(ctx, a->rd); + TCGv src1 =3D get_gpr(ctx, a->rs1, ext); + TCGv src2 =3D tcg_constant_tl(a->imm); =20 - gen_get_gpr(ctx, source1, a->rs1); - tcg_gen_movi_tl(source2, a->imm); + func(dest, src1, src2); =20 - (*func)(source1, source1, source2); - - gen_set_gpr(ctx, a->rd, source1); - tcg_temp_free(source1); - tcg_temp_free(source2); + gen_set_gpr(ctx, a->rd, dest); return true; } =20 -static void gen_addw(TCGv ret, TCGv arg1, TCGv arg2) -{ - tcg_gen_add_tl(ret, arg1, arg2); - tcg_gen_ext32s_tl(ret, ret); -} - -static void gen_subw(TCGv ret, TCGv arg1, TCGv arg2) -{ - tcg_gen_sub_tl(ret, arg1, arg2); - tcg_gen_ext32s_tl(ret, ret); -} - -static void gen_mulw(TCGv ret, TCGv arg1, TCGv arg2) -{ - tcg_gen_mul_tl(ret, arg1, arg2); - tcg_gen_ext32s_tl(ret, ret); -} - static bool gen_arith_div_w(DisasContext *ctx, arg_r *a, void(*func)(TCGv, TCGv, TCGv)) { @@ -798,21 +772,16 @@ static void gen_add_uw(TCGv ret, TCGv arg1, TCGv arg2) tcg_gen_add_tl(ret, arg1, arg2); } =20 -static bool gen_arith(DisasContext *ctx, arg_r *a, - void(*func)(TCGv, TCGv, TCGv)) +static bool gen_arith(DisasContext *ctx, arg_r *a, DisasExtend ext, + void (*func)(TCGv, TCGv, TCGv)) { - TCGv source1, source2; - source1 =3D tcg_temp_new(); - source2 =3D tcg_temp_new(); + TCGv dest =3D dest_gpr(ctx, a->rd); + TCGv src1 =3D get_gpr(ctx, a->rs1, ext); + TCGv src2 =3D get_gpr(ctx, a->rs2, ext); =20 - gen_get_gpr(ctx, source1, a->rs1); - gen_get_gpr(ctx, source2, a->rs2); + func(dest, src1, src2); =20 - (*func)(source1, source1, source2); - - gen_set_gpr(ctx, a->rd, source1); - tcg_temp_free(source1); - tcg_temp_free(source2); + gen_set_gpr(ctx, a->rd, dest); return true; } =20 diff --git a/target/riscv/insn_trans/trans_rvb.c.inc b/target/riscv/insn_tr= ans/trans_rvb.c.inc index 260e15b47d..217a7d1f26 100644 --- a/target/riscv/insn_trans/trans_rvb.c.inc +++ b/target/riscv/insn_trans/trans_rvb.c.inc @@ -38,61 +38,61 @@ static bool trans_cpop(DisasContext *ctx, arg_cpop *a) static bool trans_andn(DisasContext *ctx, arg_andn *a) { REQUIRE_EXT(ctx, RVB); - return gen_arith(ctx, a, tcg_gen_andc_tl); + return gen_arith(ctx, a, EXT_NONE, tcg_gen_andc_tl); } =20 static bool trans_orn(DisasContext *ctx, arg_orn *a) { REQUIRE_EXT(ctx, RVB); - return gen_arith(ctx, a, tcg_gen_orc_tl); + return gen_arith(ctx, a, EXT_NONE, tcg_gen_orc_tl); } =20 static bool trans_xnor(DisasContext *ctx, arg_xnor *a) { REQUIRE_EXT(ctx, RVB); - return gen_arith(ctx, a, tcg_gen_eqv_tl); + return gen_arith(ctx, a, EXT_NONE, tcg_gen_eqv_tl); } =20 static bool trans_pack(DisasContext *ctx, arg_pack *a) { REQUIRE_EXT(ctx, RVB); - return gen_arith(ctx, a, gen_pack); + return gen_arith(ctx, a, EXT_NONE, gen_pack); } =20 static bool trans_packu(DisasContext *ctx, arg_packu *a) { REQUIRE_EXT(ctx, RVB); - return gen_arith(ctx, a, gen_packu); + return gen_arith(ctx, a, EXT_NONE, gen_packu); } =20 static bool trans_packh(DisasContext *ctx, arg_packh *a) { REQUIRE_EXT(ctx, RVB); - return gen_arith(ctx, a, gen_packh); + return gen_arith(ctx, a, EXT_NONE, gen_packh); } =20 static bool trans_min(DisasContext *ctx, arg_min *a) { REQUIRE_EXT(ctx, RVB); - return gen_arith(ctx, a, tcg_gen_smin_tl); + return gen_arith(ctx, a, EXT_SIGN, tcg_gen_smin_tl); } =20 static bool trans_max(DisasContext *ctx, arg_max *a) { REQUIRE_EXT(ctx, RVB); - return gen_arith(ctx, a, tcg_gen_smax_tl); + return gen_arith(ctx, a, EXT_SIGN, tcg_gen_smax_tl); } =20 static bool trans_minu(DisasContext *ctx, arg_minu *a) { REQUIRE_EXT(ctx, RVB); - return gen_arith(ctx, a, tcg_gen_umin_tl); + return gen_arith(ctx, a, EXT_SIGN, tcg_gen_umin_tl); } =20 static bool trans_maxu(DisasContext *ctx, arg_maxu *a) { REQUIRE_EXT(ctx, RVB); - return gen_arith(ctx, a, tcg_gen_umax_tl); + return gen_arith(ctx, a, EXT_SIGN, tcg_gen_umax_tl); } =20 static bool trans_sext_b(DisasContext *ctx, arg_sext_b *a) @@ -230,7 +230,7 @@ static bool trans_gorci(DisasContext *ctx, arg_gorci *a) static bool trans_sh##SHAMT##add(DisasContext *ctx, arg_sh##SHAMT##add *a)= \ { = \ REQUIRE_EXT(ctx, RVB); = \ - return gen_arith(ctx, a, gen_sh##SHAMT##add); = \ + return gen_arith(ctx, a, EXT_NONE, gen_sh##SHAMT##add); = \ } =20 GEN_TRANS_SHADD(1) @@ -262,14 +262,14 @@ static bool trans_packw(DisasContext *ctx, arg_packw = *a) { REQUIRE_64BIT(ctx); REQUIRE_EXT(ctx, RVB); - return gen_arith(ctx, a, gen_packw); + return gen_arith(ctx, a, EXT_NONE, gen_packw); } =20 static bool trans_packuw(DisasContext *ctx, arg_packuw *a) { REQUIRE_64BIT(ctx); REQUIRE_EXT(ctx, RVB); - return gen_arith(ctx, a, gen_packuw); + return gen_arith(ctx, a, EXT_NONE, gen_packuw); } =20 static bool trans_bsetw(DisasContext *ctx, arg_bsetw *a) @@ -404,7 +404,7 @@ static bool trans_sh##SHAMT##add_uw(DisasContext *ctx, = \ { \ REQUIRE_64BIT(ctx); \ REQUIRE_EXT(ctx, RVB); \ - return gen_arith(ctx, a, gen_sh##SHAMT##add_uw); \ + return gen_arith(ctx, a, EXT_NONE, gen_sh##SHAMT##add_uw); \ } =20 GEN_TRANS_SHADD_UW(1) @@ -415,7 +415,7 @@ static bool trans_add_uw(DisasContext *ctx, arg_add_uw = *a) { REQUIRE_64BIT(ctx); REQUIRE_EXT(ctx, RVB); - return gen_arith(ctx, a, gen_add_uw); + return gen_arith(ctx, a, EXT_NONE, gen_add_uw); } =20 static bool trans_slli_uw(DisasContext *ctx, arg_slli_uw *a) diff --git a/target/riscv/insn_trans/trans_rvi.c.inc b/target/riscv/insn_tr= ans/trans_rvi.c.inc index f1a5d8de56..bd80476852 100644 --- a/target/riscv/insn_trans/trans_rvi.c.inc +++ b/target/riscv/insn_trans/trans_rvi.c.inc @@ -230,7 +230,7 @@ static bool trans_sd(DisasContext *ctx, arg_sd *a) =20 static bool trans_addi(DisasContext *ctx, arg_addi *a) { - return gen_arith_imm_fn(ctx, a, &tcg_gen_addi_tl); + return gen_arith_imm_fn(ctx, a, EXT_NONE, tcg_gen_addi_tl); } =20 static void gen_slt(TCGv ret, TCGv s1, TCGv s2) @@ -243,29 +243,31 @@ static void gen_sltu(TCGv ret, TCGv s1, TCGv s2) tcg_gen_setcond_tl(TCG_COND_LTU, ret, s1, s2); } =20 - static bool trans_slti(DisasContext *ctx, arg_slti *a) { - return gen_arith_imm_tl(ctx, a, &gen_slt); + return gen_arith_imm_tl(ctx, a, EXT_SIGN, gen_slt); } =20 static bool trans_sltiu(DisasContext *ctx, arg_sltiu *a) { - return gen_arith_imm_tl(ctx, a, &gen_sltu); + return gen_arith_imm_tl(ctx, a, EXT_SIGN, gen_sltu); } =20 static bool trans_xori(DisasContext *ctx, arg_xori *a) { - return gen_arith_imm_fn(ctx, a, &tcg_gen_xori_tl); + return gen_arith_imm_fn(ctx, a, EXT_NONE, tcg_gen_xori_tl); } + static bool trans_ori(DisasContext *ctx, arg_ori *a) { - return gen_arith_imm_fn(ctx, a, &tcg_gen_ori_tl); + return gen_arith_imm_fn(ctx, a, EXT_NONE, tcg_gen_ori_tl); } + static bool trans_andi(DisasContext *ctx, arg_andi *a) { - return gen_arith_imm_fn(ctx, a, &tcg_gen_andi_tl); + return gen_arith_imm_fn(ctx, a, EXT_NONE, tcg_gen_andi_tl); } + static bool trans_slli(DisasContext *ctx, arg_slli *a) { return gen_shifti(ctx, a, tcg_gen_shl_tl); @@ -283,12 +285,12 @@ static bool trans_srai(DisasContext *ctx, arg_srai *a) =20 static bool trans_add(DisasContext *ctx, arg_add *a) { - return gen_arith(ctx, a, &tcg_gen_add_tl); + return gen_arith(ctx, a, EXT_NONE, tcg_gen_add_tl); } =20 static bool trans_sub(DisasContext *ctx, arg_sub *a) { - return gen_arith(ctx, a, &tcg_gen_sub_tl); + return gen_arith(ctx, a, EXT_NONE, tcg_gen_sub_tl); } =20 static bool trans_sll(DisasContext *ctx, arg_sll *a) @@ -298,17 +300,17 @@ static bool trans_sll(DisasContext *ctx, arg_sll *a) =20 static bool trans_slt(DisasContext *ctx, arg_slt *a) { - return gen_arith(ctx, a, &gen_slt); + return gen_arith(ctx, a, EXT_SIGN, gen_slt); } =20 static bool trans_sltu(DisasContext *ctx, arg_sltu *a) { - return gen_arith(ctx, a, &gen_sltu); + return gen_arith(ctx, a, EXT_SIGN, gen_sltu); } =20 static bool trans_xor(DisasContext *ctx, arg_xor *a) { - return gen_arith(ctx, a, &tcg_gen_xor_tl); + return gen_arith(ctx, a, EXT_NONE, tcg_gen_xor_tl); } =20 static bool trans_srl(DisasContext *ctx, arg_srl *a) @@ -323,18 +325,19 @@ static bool trans_sra(DisasContext *ctx, arg_sra *a) =20 static bool trans_or(DisasContext *ctx, arg_or *a) { - return gen_arith(ctx, a, &tcg_gen_or_tl); + return gen_arith(ctx, a, EXT_NONE, tcg_gen_or_tl); } =20 static bool trans_and(DisasContext *ctx, arg_and *a) { - return gen_arith(ctx, a, &tcg_gen_and_tl); + return gen_arith(ctx, a, EXT_NONE, tcg_gen_and_tl); } =20 static bool trans_addiw(DisasContext *ctx, arg_addiw *a) { REQUIRE_64BIT(ctx); - return gen_arith_imm_tl(ctx, a, &gen_addw); + ctx->w =3D true; + return gen_arith_imm_fn(ctx, a, EXT_NONE, tcg_gen_addi_tl); } =20 static bool trans_slliw(DisasContext *ctx, arg_slliw *a) @@ -370,13 +373,15 @@ static bool trans_sraiw(DisasContext *ctx, arg_sraiw = *a) static bool trans_addw(DisasContext *ctx, arg_addw *a) { REQUIRE_64BIT(ctx); - return gen_arith(ctx, a, &gen_addw); + ctx->w =3D true; + return gen_arith(ctx, a, EXT_NONE, tcg_gen_add_tl); } =20 static bool trans_subw(DisasContext *ctx, arg_subw *a) { REQUIRE_64BIT(ctx); - return gen_arith(ctx, a, &gen_subw); + ctx->w =3D true; + return gen_arith(ctx, a, EXT_NONE, tcg_gen_sub_tl); } =20 static bool trans_sllw(DisasContext *ctx, arg_sllw *a) diff --git a/target/riscv/insn_trans/trans_rvm.c.inc b/target/riscv/insn_tr= ans/trans_rvm.c.inc index 0a4318f18e..013b3f7009 100644 --- a/target/riscv/insn_trans/trans_rvm.c.inc +++ b/target/riscv/insn_trans/trans_rvm.c.inc @@ -22,7 +22,7 @@ static bool trans_mul(DisasContext *ctx, arg_mul *a) { REQUIRE_EXT(ctx, RVM); - return gen_arith(ctx, a, &tcg_gen_mul_tl); + return gen_arith(ctx, a, EXT_NONE, tcg_gen_mul_tl); } =20 static bool trans_mulh(DisasContext *ctx, arg_mulh *a) @@ -44,7 +44,7 @@ static bool trans_mulh(DisasContext *ctx, arg_mulh *a) static bool trans_mulhsu(DisasContext *ctx, arg_mulhsu *a) { REQUIRE_EXT(ctx, RVM); - return gen_arith(ctx, a, &gen_mulhsu); + return gen_arith(ctx, a, EXT_NONE, gen_mulhsu); } =20 static bool trans_mulhu(DisasContext *ctx, arg_mulhu *a) @@ -66,33 +66,33 @@ static bool trans_mulhu(DisasContext *ctx, arg_mulhu *a) static bool trans_div(DisasContext *ctx, arg_div *a) { REQUIRE_EXT(ctx, RVM); - return gen_arith(ctx, a, &gen_div); + return gen_arith(ctx, a, EXT_SIGN, gen_div); } =20 static bool trans_divu(DisasContext *ctx, arg_divu *a) { REQUIRE_EXT(ctx, RVM); - return gen_arith(ctx, a, &gen_divu); + return gen_arith(ctx, a, EXT_ZERO, gen_divu); } =20 static bool trans_rem(DisasContext *ctx, arg_rem *a) { REQUIRE_EXT(ctx, RVM); - return gen_arith(ctx, a, &gen_rem); + return gen_arith(ctx, a, EXT_SIGN, gen_rem); } =20 static bool trans_remu(DisasContext *ctx, arg_remu *a) { REQUIRE_EXT(ctx, RVM); - return gen_arith(ctx, a, &gen_remu); + return gen_arith(ctx, a, EXT_ZERO, gen_remu); } =20 static bool trans_mulw(DisasContext *ctx, arg_mulw *a) { REQUIRE_64BIT(ctx); REQUIRE_EXT(ctx, RVM); - - return gen_arith(ctx, a, &gen_mulw); + ctx->w =3D true; + return gen_arith(ctx, a, EXT_NONE, tcg_gen_mul_tl); } =20 static bool trans_divw(DisasContext *ctx, arg_divw *a) --=20 2.25.1