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Wed, 30 Oct 2024 21:23:58 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Richard Henderson , =?utf-8?q?Philippe_Mathie?= =?utf-8?q?u-Daud=C3=A9?= Subject: [PULL 09/14] target/mips: Convert Loongson [D]MOD[U].G opcodes to decodetree Date: Thu, 31 Oct 2024 01:21:25 -0300 Message-ID: <20241031042130.98450-10-philmd@linaro.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241031042130.98450-1-philmd@linaro.org> References: <20241031042130.98450-1-philmd@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::135; envelope-from=philmd@linaro.org; helo=mail-lf1-x135.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, SPF_HELO_NONE=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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org From: Philippe Mathieu-Daudé Convert the following opcodes to decodetree: - MOD.G - mod 32-bit signed integers - MODU.G - mod 32-bit unsigned integers - DMOD.G - mod 64-bit signed integers - DMODU.G - mod 64-bit unsigned integers Reviewed-by: Richard Henderson Signed-off-by: Philippe Mathieu-Daudé Message-Id: <20241026175349.84523-8-philmd@linaro.org> Signed-off-by: Philippe Mathieu-Daudé --- target/mips/tcg/godson2.decode | 5 ++ target/mips/tcg/loong-ext.decode | 5 ++ target/mips/tcg/loong_translate.c | 111 ++++++++++++++++++++++++++++++ target/mips/tcg/translate.c | 82 ---------------------- 4 files changed, 121 insertions(+), 82 deletions(-) diff --git a/target/mips/tcg/godson2.decode b/target/mips/tcg/godson2.decode index 581cb9c8608..c03c8b717d9 100644 --- a/target/mips/tcg/godson2.decode +++ b/target/mips/tcg/godson2.decode @@ -17,3 +17,8 @@ DIV_G 011111 ..... ..... ..... 00000 011010 @rs_rt_rd DIVU_G 011111 ..... ..... ..... 00000 011011 @rs_rt_rd DDIV_G 011111 ..... ..... ..... 00000 011110 @rs_rt_rd DDIVU_G 011111 ..... ..... ..... 00000 011111 @rs_rt_rd + +MOD_G 011111 ..... ..... ..... 00000 100010 @rs_rt_rd +MODU_G 011111 ..... ..... ..... 00000 100011 @rs_rt_rd +DMOD_G 011111 ..... ..... ..... 00000 100110 @rs_rt_rd +DMODU_G 011111 ..... ..... ..... 00000 100111 @rs_rt_rd diff --git a/target/mips/tcg/loong-ext.decode b/target/mips/tcg/loong-ext.decode index e222167af56..f0fd36c9218 100644 --- a/target/mips/tcg/loong-ext.decode +++ b/target/mips/tcg/loong-ext.decode @@ -18,3 +18,8 @@ DIV_G 011100 ..... ..... ..... 00000 010100 @rs_rt_rd DDIV_G 011100 ..... ..... ..... 00000 010101 @rs_rt_rd DIVU_G 011100 ..... ..... ..... 00000 010110 @rs_rt_rd DDIVU_G 011100 ..... ..... ..... 00000 010111 @rs_rt_rd + +MOD_G 011100 ..... ..... ..... 00000 011100 @rs_rt_rd +DMOD_G 011100 ..... ..... ..... 00000 011101 @rs_rt_rd +MODU_G 011100 ..... ..... ..... 00000 011110 @rs_rt_rd +DMODU_G 011100 ..... ..... ..... 00000 011111 @rs_rt_rd diff --git a/target/mips/tcg/loong_translate.c b/target/mips/tcg/loong_translate.c index 903d242e7cc..76c1a8cef2d 100644 --- a/target/mips/tcg/loong_translate.c +++ b/target/mips/tcg/loong_translate.c @@ -141,6 +141,117 @@ static bool trans_DDIVU_G(DisasContext *s, arg_muldiv *a) return gen_lext_DIVU_G(s, a->rt, a->rs, a->rd, true); } +static bool gen_lext_MOD_G(DisasContext *s, int rd, int rs, int rt, + bool is_double) +{ + TCGv t0, t1; + TCGLabel *l1, *l2, *l3; + + if (is_double) { + if (TARGET_LONG_BITS != 64) { + return false; + } + check_mips_64(s); + } + + if (rd == 0) { + /* Treat as NOP. */ + return true; + } + + t0 = tcg_temp_new(); + t1 = tcg_temp_new(); + l1 = gen_new_label(); + l2 = gen_new_label(); + l3 = gen_new_label(); + + gen_load_gpr(t0, rs); + gen_load_gpr(t1, rt); + + if (!is_double) { + tcg_gen_ext32u_tl(t0, t0); + tcg_gen_ext32u_tl(t1, t1); + } + tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1); + tcg_gen_brcondi_tl(TCG_COND_NE, t0, is_double && TARGET_LONG_BITS == 64 + ? LLONG_MIN : INT_MIN, l2); + tcg_gen_brcondi_tl(TCG_COND_NE, t1, -1LL, l2); + gen_set_label(l1); + tcg_gen_movi_tl(cpu_gpr[rd], 0); + tcg_gen_br(l3); + gen_set_label(l2); + tcg_gen_rem_tl(cpu_gpr[rd], t0, t1); + if (!is_double) { + tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]); + } + gen_set_label(l3); + + return true; +} + +static bool trans_MOD_G(DisasContext *s, arg_muldiv *a) +{ + return gen_lext_MOD_G(s, a->rt, a->rs, a->rd, false); +} + +static bool trans_DMOD_G(DisasContext *s, arg_muldiv *a) +{ + return gen_lext_MOD_G(s, a->rt, a->rs, a->rd, true); +} + +static bool gen_lext_MODU_G(DisasContext *s, int rd, int rs, int rt, + bool is_double) +{ + TCGv t0, t1; + TCGLabel *l1, *l2; + + if (is_double) { + if (TARGET_LONG_BITS != 64) { + return false; + } + check_mips_64(s); + } + + if (rd == 0) { + /* Treat as NOP. */ + return true; + } + + t0 = tcg_temp_new(); + t1 = tcg_temp_new(); + l1 = gen_new_label(); + l2 = gen_new_label(); + + gen_load_gpr(t0, rs); + gen_load_gpr(t1, rt); + + if (!is_double) { + tcg_gen_ext32u_tl(t0, t0); + tcg_gen_ext32u_tl(t1, t1); + } + tcg_gen_brcondi_tl(TCG_COND_NE, t1, 0, l1); + tcg_gen_movi_tl(cpu_gpr[rd], 0); + tcg_gen_br(l2); + gen_set_label(l1); + tcg_gen_remu_tl(cpu_gpr[rd], t0, t1); + if (!is_double) { + tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]); + } + gen_set_label(l2); + + return true; +} + +static bool trans_MODU_G(DisasContext *s, arg_muldiv *a) +{ + return gen_lext_MODU_G(s, a->rt, a->rs, a->rd, false); +} + +static bool trans_DMODU_G(DisasContext *s, arg_muldiv *a) +{ + return gen_lext_MODU_G(s, a->rt, a->rs, a->rd, true); +} + bool decode_ext_loongson(DisasContext *ctx, uint32_t insn) { if (!decode_64bit_enabled(ctx)) { diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c index 53bbbb761f8..4abc30a6a5f 100644 --- a/target/mips/tcg/translate.c +++ b/target/mips/tcg/translate.c @@ -332,10 +332,6 @@ enum { OPC_DMULT_G_2F = 0x11 | OPC_SPECIAL2, OPC_MULTU_G_2F = 0x12 | OPC_SPECIAL2, OPC_DMULTU_G_2F = 0x13 | OPC_SPECIAL2, - OPC_MOD_G_2F = 0x1c | OPC_SPECIAL2, - OPC_DMOD_G_2F = 0x1d | OPC_SPECIAL2, - OPC_MODU_G_2F = 0x1e | OPC_SPECIAL2, - OPC_DMODU_G_2F = 0x1f | OPC_SPECIAL2, /* Misc */ OPC_CLZ = 0x20 | OPC_SPECIAL2, OPC_CLO = 0x21 | OPC_SPECIAL2, @@ -369,10 +365,6 @@ enum { OPC_MULTU_G_2E = 0x19 | OPC_SPECIAL3, OPC_DMULT_G_2E = 0x1C | OPC_SPECIAL3, OPC_DMULTU_G_2E = 0x1D | OPC_SPECIAL3, - OPC_MOD_G_2E = 0x22 | OPC_SPECIAL3, - OPC_MODU_G_2E = 0x23 | OPC_SPECIAL3, - OPC_DMOD_G_2E = 0x26 | OPC_SPECIAL3, - OPC_DMODU_G_2E = 0x27 | OPC_SPECIAL3, /* MIPS DSP Load */ OPC_LX_DSP = 0x0A | OPC_SPECIAL3, @@ -3607,42 +3599,6 @@ static void gen_loongson_integer(DisasContext *ctx, uint32_t opc, tcg_gen_mul_tl(cpu_gpr[rd], t0, t1); tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]); break; - case OPC_MOD_G_2E: - case OPC_MOD_G_2F: - { - TCGLabel *l1 = gen_new_label(); - TCGLabel *l2 = gen_new_label(); - TCGLabel *l3 = gen_new_label(); - tcg_gen_ext32u_tl(t0, t0); - tcg_gen_ext32u_tl(t1, t1); - tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1); - tcg_gen_brcondi_tl(TCG_COND_NE, t0, INT_MIN, l2); - tcg_gen_brcondi_tl(TCG_COND_NE, t1, -1, l2); - gen_set_label(l1); - tcg_gen_movi_tl(cpu_gpr[rd], 0); - tcg_gen_br(l3); - gen_set_label(l2); - tcg_gen_rem_tl(cpu_gpr[rd], t0, t1); - tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]); - gen_set_label(l3); - } - break; - case OPC_MODU_G_2E: - case OPC_MODU_G_2F: - { - TCGLabel *l1 = gen_new_label(); - TCGLabel *l2 = gen_new_label(); - tcg_gen_ext32u_tl(t0, t0); - tcg_gen_ext32u_tl(t1, t1); - tcg_gen_brcondi_tl(TCG_COND_NE, t1, 0, l1); - tcg_gen_movi_tl(cpu_gpr[rd], 0); - tcg_gen_br(l2); - gen_set_label(l1); - tcg_gen_remu_tl(cpu_gpr[rd], t0, t1); - tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]); - gen_set_label(l2); - } - break; #if defined(TARGET_MIPS64) case OPC_DMULT_G_2E: case OPC_DMULT_G_2F: @@ -3652,36 +3608,6 @@ static void gen_loongson_integer(DisasContext *ctx, uint32_t opc, case OPC_DMULTU_G_2F: tcg_gen_mul_tl(cpu_gpr[rd], t0, t1); break; - case OPC_DMOD_G_2E: - case OPC_DMOD_G_2F: - { - TCGLabel *l1 = gen_new_label(); - TCGLabel *l2 = gen_new_label(); - TCGLabel *l3 = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1); - tcg_gen_brcondi_tl(TCG_COND_NE, t0, -1LL << 63, l2); - tcg_gen_brcondi_tl(TCG_COND_NE, t1, -1LL, l2); - gen_set_label(l1); - tcg_gen_movi_tl(cpu_gpr[rd], 0); - tcg_gen_br(l3); - gen_set_label(l2); - tcg_gen_rem_tl(cpu_gpr[rd], t0, t1); - gen_set_label(l3); - } - break; - case OPC_DMODU_G_2E: - case OPC_DMODU_G_2F: - { - TCGLabel *l1 = gen_new_label(); - TCGLabel *l2 = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_NE, t1, 0, l1); - tcg_gen_movi_tl(cpu_gpr[rd], 0); - tcg_gen_br(l2); - gen_set_label(l1); - tcg_gen_remu_tl(cpu_gpr[rd], t0, t1); - gen_set_label(l2); - } - break; #endif } } @@ -13543,8 +13469,6 @@ static void decode_opc_special2_legacy(CPUMIPSState *env, DisasContext *ctx) break; case OPC_MULT_G_2F: case OPC_MULTU_G_2F: - case OPC_MOD_G_2F: - case OPC_MODU_G_2F: check_insn(ctx, INSN_LOONGSON2F | ASE_LEXT); gen_loongson_integer(ctx, op1, rd, rs, rt); break; @@ -13574,8 +13498,6 @@ static void decode_opc_special2_legacy(CPUMIPSState *env, DisasContext *ctx) break; case OPC_DMULT_G_2F: case OPC_DMULTU_G_2F: - case OPC_DMOD_G_2F: - case OPC_DMODU_G_2F: check_insn(ctx, INSN_LOONGSON2F | ASE_LEXT); gen_loongson_integer(ctx, op1, rd, rs, rt); break; @@ -13711,8 +13633,6 @@ static void decode_opc_special3_legacy(CPUMIPSState *env, DisasContext *ctx) op1 = MASK_SPECIAL3(ctx->opcode); switch (op1) { - case OPC_MOD_G_2E: - case OPC_MODU_G_2E: case OPC_MULT_G_2E: case OPC_MULTU_G_2E: /* @@ -13979,8 +13899,6 @@ static void decode_opc_special3_legacy(CPUMIPSState *env, DisasContext *ctx) #if defined(TARGET_MIPS64) case OPC_DMULT_G_2E: case OPC_DMULTU_G_2E: - case OPC_DMOD_G_2E: - case OPC_DMODU_G_2E: check_insn(ctx, INSN_LOONGSON2E); gen_loongson_integer(ctx, op1, rd, rs, rt); break;