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[68.203.8.61]) by smtp.gmail.com with ESMTPSA id l14-20020a0568301d6e00b006ce1f9c62a1sm2335054oti.39.2023.11.09.13.25.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Nov 2023 13:25:53 -0800 (PST) From: Taylor Simpson To: qemu-devel@nongnu.org Cc: bcain@quicinc.com, quic_mathbern@quicinc.com, sidneym@quicinc.com, richard.henderson@linaro.org, philmd@linaro.org, ale@rev.ng, anjo@rev.ng, ltaylorsimpson@gmail.com Subject: [RFC PATCH] Hexagon (target/hexagon) Make generators object oriented Date: Thu, 9 Nov 2023 14:25:49 -0700 Message-Id: <20231109212549.356168-1-ltaylorsimpson@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::c31; envelope-from=ltaylorsimpson@gmail.com; helo=mail-oo1-xc31.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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org RFC - This patch handles gen_tcg_funcs.py. I'd like to get comments on the general approach before working on the other Python scripts. The generators are generally a bunch of Python if-then-else statements based on the regtype and regid. Encapsulate regtype/regid into a class hierarchy. Clients lookup the register and invoke methods. This has several advantages for making the code easier to read, understand, and maintain - The class name makes it more clear what the operand does - All the methods for a given type of operand are together - Don't need as many calls to hex_common.bad_register - We can remove the functions in hex_common that use regtype/regid (e.g., is_read) Signed-off-by: Taylor Simpson --- target/hexagon/gen_tcg_funcs.py | 568 +++----------------------------- target/hexagon/hex_common.py | 467 ++++++++++++++++++++++++++ 2 files changed, 509 insertions(+), 526 deletions(-) diff --git a/target/hexagon/gen_tcg_funcs.py b/target/hexagon/gen_tcg_funcs.py index f5246cee6d..f7a0c59397 100755 --- a/target/hexagon/gen_tcg_funcs.py +++ b/target/hexagon/gen_tcg_funcs.py @@ -23,454 +23,6 @@ import hex_common -## -## Helpers for gen_tcg_func -## -def gen_decl_ea_tcg(f, tag): - f.write(" TCGv EA G_GNUC_UNUSED = tcg_temp_new();\n") - - -def genptr_decl_pair_writable(f, tag, regtype, regid, regno): - regN = f"{regtype}{regid}N" - if regtype == "R": - f.write(f" const int {regN} = insn->regno[{regno}];\n") - elif regtype == "C": - f.write(f" const int {regN} = insn->regno[{regno}] + HEX_REG_SA0;\n") - else: - hex_common.bad_register(regtype, regid) - f.write(f" TCGv_i64 {regtype}{regid}V = " f"get_result_gpr_pair(ctx, {regN});\n") - - -def genptr_decl_writable(f, tag, regtype, regid, regno): - regN = f"{regtype}{regid}N" - if regtype == "R": - f.write(f" const int {regN} = insn->regno[{regno}];\n") - f.write(f" TCGv {regtype}{regid}V = get_result_gpr(ctx, {regN});\n") - elif regtype == "C": - f.write(f" const int {regN} = insn->regno[{regno}] + HEX_REG_SA0;\n") - f.write(f" TCGv {regtype}{regid}V = get_result_gpr(ctx, {regN});\n") - elif regtype == "P": - f.write(f" const int {regN} = insn->regno[{regno}];\n") - f.write(f" TCGv {regtype}{regid}V = tcg_temp_new();\n") - else: - hex_common.bad_register(regtype, regid) - - -def genptr_decl(f, tag, regtype, regid, regno): - regN = f"{regtype}{regid}N" - if regtype == "R": - if regid in {"ss", "tt"}: - f.write(f" TCGv_i64 {regtype}{regid}V = tcg_temp_new_i64();\n") - f.write(f" const int {regN} = insn->regno[{regno}];\n") - elif regid in {"dd", "ee", "xx", "yy"}: - genptr_decl_pair_writable(f, tag, regtype, regid, regno) - elif regid in {"s", "t", "u", "v"}: - f.write( - f" TCGv {regtype}{regid}V = " f"hex_gpr[insn->regno[{regno}]];\n" - ) - elif regid in {"d", "e", "x", "y"}: - genptr_decl_writable(f, tag, regtype, regid, regno) - else: - hex_common.bad_register(regtype, regid) - elif regtype == "P": - if regid in {"s", "t", "u", "v"}: - f.write( - f" TCGv {regtype}{regid}V = " f"hex_pred[insn->regno[{regno}]];\n" - ) - elif regid in {"d", "e", "x"}: - genptr_decl_writable(f, tag, regtype, regid, regno) - else: - hex_common.bad_register(regtype, regid) - elif regtype == "C": - if regid == "ss": - f.write(f" TCGv_i64 {regtype}{regid}V = " f"tcg_temp_new_i64();\n") - f.write(f" const int {regN} = insn->regno[{regno}] + " "HEX_REG_SA0;\n") - elif regid == "dd": - genptr_decl_pair_writable(f, tag, regtype, regid, regno) - elif regid == "s": - f.write(f" TCGv {regtype}{regid}V = tcg_temp_new();\n") - f.write( - f" const int {regtype}{regid}N = insn->regno[{regno}] + " - "HEX_REG_SA0;\n" - ) - elif regid == "d": - genptr_decl_writable(f, tag, regtype, regid, regno) - else: - hex_common.bad_register(regtype, regid) - elif regtype == "M": - if regid == "u": - f.write(f" const int {regtype}{regid}N = " f"insn->regno[{regno}];\n") - f.write( - f" TCGv {regtype}{regid}V = hex_gpr[{regtype}{regid}N + " - "HEX_REG_M0];\n" - ) - else: - hex_common.bad_register(regtype, regid) - elif regtype == "V": - if regid in {"dd"}: - f.write(f" const int {regtype}{regid}N = " f"insn->regno[{regno}];\n") - f.write(f" const intptr_t {regtype}{regid}V_off =\n") - if hex_common.is_tmp_result(tag): - f.write( - f" ctx_tmp_vreg_off(ctx, {regtype}{regid}N, 2, " "true);\n" - ) - else: - f.write(f" ctx_future_vreg_off(ctx, {regtype}{regid}N,") - f.write(" 2, true);\n") - if not hex_common.skip_qemu_helper(tag): - f.write(f" TCGv_ptr {regtype}{regid}V = " "tcg_temp_new_ptr();\n") - f.write( - f" tcg_gen_addi_ptr({regtype}{regid}V, tcg_env, " - f"{regtype}{regid}V_off);\n" - ) - elif regid in {"uu", "vv", "xx"}: - f.write(f" const int {regtype}{regid}N = " f"insn->regno[{regno}];\n") - f.write(f" const intptr_t {regtype}{regid}V_off =\n") - f.write(f" offsetof(CPUHexagonState, {regtype}{regid}V);\n") - if not hex_common.skip_qemu_helper(tag): - f.write(f" TCGv_ptr {regtype}{regid}V = " "tcg_temp_new_ptr();\n") - f.write( - f" tcg_gen_addi_ptr({regtype}{regid}V, tcg_env, " - f"{regtype}{regid}V_off);\n" - ) - elif regid in {"s", "u", "v", "w"}: - f.write(f" const int {regtype}{regid}N = " f"insn->regno[{regno}];\n") - f.write(f" const intptr_t {regtype}{regid}V_off =\n") - f.write(f" vreg_src_off(ctx, {regtype}{regid}N);\n") - if not hex_common.skip_qemu_helper(tag): - f.write(f" TCGv_ptr {regtype}{regid}V = " "tcg_temp_new_ptr();\n") - elif regid in {"d", "x", "y"}: - f.write(f" const int {regtype}{regid}N = " f"insn->regno[{regno}];\n") - f.write(f" const intptr_t {regtype}{regid}V_off =\n") - if regid == "y": - f.write(" offsetof(CPUHexagonState, vtmp);\n") - elif hex_common.is_tmp_result(tag): - f.write( - f" ctx_tmp_vreg_off(ctx, {regtype}{regid}N, 1, " "true);\n" - ) - else: - f.write(f" ctx_future_vreg_off(ctx, {regtype}{regid}N,") - f.write(" 1, true);\n") - - if not hex_common.skip_qemu_helper(tag): - f.write(f" TCGv_ptr {regtype}{regid}V = " "tcg_temp_new_ptr();\n") - f.write( - f" tcg_gen_addi_ptr({regtype}{regid}V, tcg_env, " - f"{regtype}{regid}V_off);\n" - ) - else: - hex_common.bad_register(regtype, regid) - elif regtype == "Q": - if regid in {"d", "e", "x"}: - f.write(f" const int {regtype}{regid}N = " f"insn->regno[{regno}];\n") - f.write(f" const intptr_t {regtype}{regid}V_off =\n") - f.write(f" get_result_qreg(ctx, {regtype}{regid}N);\n") - if not hex_common.skip_qemu_helper(tag): - f.write(f" TCGv_ptr {regtype}{regid}V = " "tcg_temp_new_ptr();\n") - f.write( - f" tcg_gen_addi_ptr({regtype}{regid}V, tcg_env, " - f"{regtype}{regid}V_off);\n" - ) - elif regid in {"s", "t", "u", "v"}: - f.write(f" const int {regtype}{regid}N = " f"insn->regno[{regno}];\n") - f.write(f" const intptr_t {regtype}{regid}V_off =\n") - f.write( - f" offsetof(CPUHexagonState, " f"QRegs[{regtype}{regid}N]);\n" - ) - if not hex_common.skip_qemu_helper(tag): - f.write(f" TCGv_ptr {regtype}{regid}V = " "tcg_temp_new_ptr();\n") - else: - hex_common.bad_register(regtype, regid) - else: - hex_common.bad_register(regtype, regid) - - -def genptr_decl_new(f, tag, regtype, regid, regno): - if regtype == "N": - if regid in {"s", "t"}: - f.write( - f" TCGv {regtype}{regid}N = " - f"get_result_gpr(ctx, insn->regno[{regno}]);\n" - ) - else: - hex_common.bad_register(regtype, regid) - elif regtype == "P": - if regid in {"t", "u", "v"}: - f.write( - f" TCGv {regtype}{regid}N = " - f"ctx->new_pred_value[insn->regno[{regno}]];\n" - ) - else: - hex_common.bad_register(regtype, regid) - elif regtype == "O": - if regid == "s": - f.write( - f" const intptr_t {regtype}{regid}N_num = " - f"insn->regno[{regno}];\n" - ) - if hex_common.skip_qemu_helper(tag): - f.write(f" const intptr_t {regtype}{regid}N_off =\n") - f.write(" ctx_future_vreg_off(ctx, " f"{regtype}{regid}N_num,") - f.write(" 1, true);\n") - else: - f.write( - f" TCGv {regtype}{regid}N = " - f"tcg_constant_tl({regtype}{regid}N_num);\n" - ) - else: - hex_common.bad_register(regtype, regid) - else: - hex_common.bad_register(regtype, regid) - - -def genptr_decl_opn(f, tag, regtype, regid, i): - if hex_common.is_pair(regid): - genptr_decl(f, tag, regtype, regid, i) - elif hex_common.is_single(regid): - if hex_common.is_old_val(regtype, regid, tag): - genptr_decl(f, tag, regtype, regid, i) - elif hex_common.is_new_val(regtype, regid, tag): - genptr_decl_new(f, tag, regtype, regid, i) - else: - hex_common.bad_register(regtype, regid) - else: - hex_common.bad_register(regtype, regid) - - -def genptr_decl_imm(f, immlett): - if immlett.isupper(): - i = 1 - else: - i = 0 - f.write(f" int {hex_common.imm_name(immlett)} = insn->immed[{i}];\n") - - -def genptr_src_read(f, tag, regtype, regid): - if regtype == "R": - if regid in {"ss", "tt", "xx", "yy"}: - f.write( - f" tcg_gen_concat_i32_i64({regtype}{regid}V, " - f"hex_gpr[{regtype}{regid}N],\n" - ) - f.write( - f" hex_gpr[{regtype}" - f"{regid}N + 1]);\n" - ) - elif regid in {"x", "y"}: - ## For read/write registers, we need to get the original value into - ## the result TCGv. For conditional instructions, this is done in - ## gen_start_packet. For unconditional instructions, we do it here. - if "A_CONDEXEC" not in hex_common.attribdict[tag]: - f.write( - f" tcg_gen_mov_tl({regtype}{regid}V, " - f"hex_gpr[{regtype}{regid}N]);\n" - ) - elif regid not in {"s", "t", "u", "v"}: - hex_common.bad_register(regtype, regid) - elif regtype == "P": - if regid == "x": - f.write( - f" tcg_gen_mov_tl({regtype}{regid}V, " - f"hex_pred[{regtype}{regid}N]);\n" - ) - elif regid not in {"s", "t", "u", "v"}: - hex_common.bad_register(regtype, regid) - elif regtype == "C": - if regid == "ss": - f.write( - f" gen_read_ctrl_reg_pair(ctx, {regtype}{regid}N, " - f"{regtype}{regid}V);\n" - ) - elif regid == "s": - f.write( - f" gen_read_ctrl_reg(ctx, {regtype}{regid}N, " - f"{regtype}{regid}V);\n" - ) - else: - hex_common.bad_register(regtype, regid) - elif regtype == "M": - if regid != "u": - hex_common.bad_register(regtype, regid) - elif regtype == "V": - if regid in {"uu", "vv", "xx"}: - f.write(f" tcg_gen_gvec_mov(MO_64, {regtype}{regid}V_off,\n") - f.write(f" vreg_src_off(ctx, {regtype}{regid}N),\n") - f.write(" sizeof(MMVector), sizeof(MMVector));\n") - f.write(" tcg_gen_gvec_mov(MO_64,\n") - f.write(f" {regtype}{regid}V_off + sizeof(MMVector),\n") - f.write(f" vreg_src_off(ctx, {regtype}{regid}N ^ 1),\n") - f.write(" sizeof(MMVector), sizeof(MMVector));\n") - elif regid in {"s", "u", "v", "w"}: - if not hex_common.skip_qemu_helper(tag): - f.write( - f" tcg_gen_addi_ptr({regtype}{regid}V, tcg_env, " - f"{regtype}{regid}V_off);\n" - ) - elif regid in {"x", "y"}: - f.write(f" tcg_gen_gvec_mov(MO_64, {regtype}{regid}V_off,\n") - f.write(f" vreg_src_off(ctx, {regtype}{regid}N),\n") - f.write(" sizeof(MMVector), sizeof(MMVector));\n") - else: - hex_common.bad_register(regtype, regid) - elif regtype == "Q": - if regid in {"s", "t", "u", "v"}: - if not hex_common.skip_qemu_helper(tag): - f.write( - f" tcg_gen_addi_ptr({regtype}{regid}V, tcg_env, " - f"{regtype}{regid}V_off);\n" - ) - elif regid in {"x"}: - f.write(f" tcg_gen_gvec_mov(MO_64, {regtype}{regid}V_off,\n") - f.write( - f" offsetof(CPUHexagonState, " f"QRegs[{regtype}{regid}N]),\n" - ) - f.write(" sizeof(MMQReg), sizeof(MMQReg));\n") - else: - hex_common.bad_register(regtype, regid) - else: - hex_common.bad_register(regtype, regid) - - -def genptr_src_read_new(f, regtype, regid): - if regtype == "N": - if regid not in {"s", "t"}: - hex_common.bad_register(regtype, regid) - elif regtype == "P": - if regid not in {"t", "u", "v"}: - hex_common.bad_register(regtype, regid) - elif regtype == "O": - if regid != "s": - hex_common.bad_register(regtype, regid) - else: - hex_common.bad_register(regtype, regid) - - -def genptr_src_read_opn(f, regtype, regid, tag): - if hex_common.is_pair(regid): - genptr_src_read(f, tag, regtype, regid) - elif hex_common.is_single(regid): - if hex_common.is_old_val(regtype, regid, tag): - genptr_src_read(f, tag, regtype, regid) - elif hex_common.is_new_val(regtype, regid, tag): - genptr_src_read_new(f, regtype, regid) - else: - hex_common.bad_register(regtype, regid) - else: - hex_common.bad_register(regtype, regid) - - -def gen_helper_call_opn(f, tag, regtype, regid, i): - if i > 0: - f.write(", ") - if hex_common.is_pair(regid): - f.write(f"{regtype}{regid}V") - elif hex_common.is_single(regid): - if hex_common.is_old_val(regtype, regid, tag): - f.write(f"{regtype}{regid}V") - elif hex_common.is_new_val(regtype, regid, tag): - f.write(f"{regtype}{regid}N") - else: - hex_common.bad_register(regtype, regid) - else: - hex_common.bad_register(regtype, regid) - - -def gen_helper_decl_imm(f, immlett): - f.write( - f" TCGv tcgv_{hex_common.imm_name(immlett)} = " - f"tcg_constant_tl({hex_common.imm_name(immlett)});\n" - ) - - -def gen_helper_call_imm(f, immlett): - f.write(f", tcgv_{hex_common.imm_name(immlett)}") - - -def genptr_dst_write_pair(f, tag, regtype, regid): - f.write(f" gen_log_reg_write_pair(ctx, {regtype}{regid}N, " - f"{regtype}{regid}V);\n") - - -def genptr_dst_write(f, tag, regtype, regid): - if regtype == "R": - if regid in {"dd", "xx", "yy"}: - genptr_dst_write_pair(f, tag, regtype, regid) - elif regid in {"d", "e", "x", "y"}: - f.write( - f" gen_log_reg_write(ctx, {regtype}{regid}N, " - f"{regtype}{regid}V);\n" - ) - else: - hex_common.bad_register(regtype, regid) - elif regtype == "P": - if regid in {"d", "e", "x"}: - f.write( - f" gen_log_pred_write(ctx, {regtype}{regid}N, " - f"{regtype}{regid}V);\n" - ) - else: - hex_common.bad_register(regtype, regid) - elif regtype == "C": - if regid == "dd": - f.write( - f" gen_write_ctrl_reg_pair(ctx, {regtype}{regid}N, " - f"{regtype}{regid}V);\n" - ) - elif regid == "d": - f.write( - f" gen_write_ctrl_reg(ctx, {regtype}{regid}N, " - f"{regtype}{regid}V);\n" - ) - else: - hex_common.bad_register(regtype, regid) - else: - hex_common.bad_register(regtype, regid) - - -def genptr_dst_write_ext(f, tag, regtype, regid, newv="EXT_DFL"): - if regtype == "V": - if regid in {"xx"}: - f.write( - f" gen_log_vreg_write_pair(ctx, {regtype}{regid}V_off, " - f"{regtype}{regid}N, {newv});\n" - ) - elif regid in {"y"}: - f.write( - f" gen_log_vreg_write(ctx, {regtype}{regid}V_off, " - f"{regtype}{regid}N, {newv});\n" - ) - elif regid not in {"dd", "d", "x"}: - hex_common.bad_register(regtype, regid) - elif regtype == "Q": - if regid not in {"d", "e", "x"}: - hex_common.bad_register(regtype, regid) - else: - hex_common.bad_register(regtype, regid) - - -def genptr_dst_write_opn(f, regtype, regid, tag): - if hex_common.is_pair(regid): - if hex_common.is_hvx_reg(regtype): - if hex_common.is_tmp_result(tag): - genptr_dst_write_ext(f, tag, regtype, regid, "EXT_TMP") - else: - genptr_dst_write_ext(f, tag, regtype, regid) - else: - genptr_dst_write(f, tag, regtype, regid) - elif hex_common.is_single(regid): - if hex_common.is_hvx_reg(regtype): - if hex_common.is_new_result(tag): - genptr_dst_write_ext(f, tag, regtype, regid, "EXT_NEW") - elif hex_common.is_tmp_result(tag): - genptr_dst_write_ext(f, tag, regtype, regid, "EXT_TMP") - else: - genptr_dst_write_ext(f, tag, regtype, regid, "EXT_DFL") - else: - genptr_dst_write(f, tag, regtype, regid) - else: - hex_common.bad_register(regtype, regid) - - ## ## Generate the TCG code to call the helper ## For A2_add: Rd32=add(Rs32,Rt32), { RdV=RsV+RtV;} @@ -496,44 +48,27 @@ def gen_tcg_func(f, tag, regs, imms): f.write(f"static void generate_{tag}(DisasContext *ctx)\n") f.write("{\n") - f.write(" Insn *insn __attribute__((unused)) = ctx->insn;\n") + f.write(" Insn *insn G_GNUC_UNUSED = ctx->insn;\n") if hex_common.need_ea(tag): - gen_decl_ea_tcg(f, tag) - i = 0 + f.write(" TCGv EA G_GNUC_UNUSED = tcg_temp_new();\n") + ## Declare all the operands (regs and immediates) + i = 0 for regtype, regid in regs: - genptr_decl_opn(f, tag, regtype, regid, i) + reg = hex_common.get_register(tag, regtype, regid) + reg.genptr_decl(f, tag, i) i += 1 for immlett, bits, immshift in imms: - genptr_decl_imm(f, immlett) - - if "A_PRIV" in hex_common.attribdict[tag]: - f.write(" fCHECKFORPRIV();\n") - if "A_GUEST" in hex_common.attribdict[tag]: - f.write(" fCHECKFORGUEST();\n") - - ## Read all the inputs - for regtype, regid in regs: - if hex_common.is_read(regid): - genptr_src_read_opn(f, regtype, regid, tag) + i = 1 if immlett.isupper() else 0 + f.write(f" int {hex_common.imm_name(immlett)} = insn->immed[{i}];\n") if hex_common.is_idef_parser_enabled(tag): declared = [] ## Handle registers for regtype, regid in regs: - if hex_common.is_pair(regid) or ( - hex_common.is_single(regid) - and hex_common.is_old_val(regtype, regid, tag) - ): - declared.append(f"{regtype}{regid}V") - if regtype == "M": - declared.append(f"{regtype}{regid}N") - elif hex_common.is_new_val(regtype, regid, tag): - declared.append(f"{regtype}{regid}N") - else: - hex_common.bad_register(regtype, regid) - + reg = hex_common.get_register(tag, regtype, regid) + reg.idef_arg(declared) ## Handle immediates for immlett, bits, immshift in imms: declared.append(hex_common.imm_name(immlett)) @@ -545,76 +80,56 @@ def gen_tcg_func(f, tag, regs, imms): f.write(f" fGEN_TCG_{tag}({hex_common.semdict[tag]});\n") else: ## Generate the call to the helper - for immlett, bits, immshift in imms: - gen_helper_decl_imm(f, immlett) - if hex_common.need_pkt_has_multi_cof(tag): - f.write(" TCGv pkt_has_multi_cof = ") - f.write("tcg_constant_tl(ctx->pkt->pkt_has_multi_cof);\n") - if hex_common.need_pkt_need_commit(tag): - f.write(" TCGv pkt_need_commit = ") - f.write("tcg_constant_tl(ctx->need_commit);\n") - if hex_common.need_part1(tag): - f.write(" TCGv part1 = tcg_constant_tl(insn->part1);\n") - if hex_common.need_slot(tag): - f.write(" TCGv slotval = gen_slotval(ctx);\n") - if hex_common.need_PC(tag): - f.write(" TCGv PC = tcg_constant_tl(ctx->pkt->pc);\n") - if hex_common.helper_needs_next_PC(tag): - f.write(" TCGv next_PC = tcg_constant_tl(ctx->next_PC);\n") - f.write(f" gen_helper_{tag}(") - i = 0 + declared = [] ## If there is a scalar result, it is the return type for regtype, regid in regs: - if hex_common.is_written(regid): - if hex_common.is_hvx_reg(regtype): - continue - gen_helper_call_opn(f, tag, regtype, regid, i) - i += 1 - if i > 0: - f.write(", ") - f.write("tcg_env") - i = 1 + reg = hex_common.get_register(tag, regtype, regid) + if reg.is_written() and not reg.is_hvx_reg(): + declared.append(reg.regV) + declared.append("tcg_env") + ## For conditional instructions, we pass in the destination register if "A_CONDEXEC" in hex_common.attribdict[tag]: for regtype, regid in regs: - if hex_common.is_writeonly(regid) and not hex_common.is_hvx_reg( - regtype - ): - gen_helper_call_opn(f, tag, regtype, regid, i) - i += 1 + reg = hex_common.get_register(tag, regtype, regid) + if reg.is_writeonly() and not reg.is_hvx_reg(): + declared.append(reg.regV) + ## Pass the HVX destination registers for regtype, regid in regs: - if hex_common.is_written(regid): - if not hex_common.is_hvx_reg(regtype): - continue - gen_helper_call_opn(f, tag, regtype, regid, i) - i += 1 + reg = hex_common.get_register(tag, regtype, regid) + if reg.is_written() and reg.is_hvx_reg(): + declared.append(reg.regV) + ## Pass the source registers for regtype, regid in regs: - if hex_common.is_read(regid): - if hex_common.is_hvx_reg(regtype) and hex_common.is_readwrite(regid): - continue - gen_helper_call_opn(f, tag, regtype, regid, i) - i += 1 + reg = hex_common.get_register(tag, regtype, regid) + if reg.is_read() and not (reg.is_hvx_reg() and reg.is_readwrite()): + declared.append(reg.regV) + ## Pass the immediates for immlett, bits, immshift in imms: - gen_helper_call_imm(f, immlett) + declared.append(f"tcg_constant_tl({hex_common.imm_name(immlett)})") + ## Other stuff the helper might need if hex_common.need_pkt_has_multi_cof(tag): - f.write(", pkt_has_multi_cof") + declared.append("tcg_constant_tl(ctx->pkt->pkt_has_multi_cof)") if hex_common.need_pkt_need_commit(tag): - f.write(", pkt_need_commit") + declared.append("tcg_constant_tl(ctx->need_commit)") if hex_common.need_PC(tag): - f.write(", PC") + declared.append("tcg_constant_tl(ctx->pkt->pc)") if hex_common.helper_needs_next_PC(tag): - f.write(", next_PC") + declared.append("tcg_constant_tl(ctx->next_PC)") if hex_common.need_slot(tag): - f.write(", slotval") + declared.append("gen_slotval(ctx)") if hex_common.need_part1(tag): - f.write(", part1") - f.write(");\n") + declared.append("tcg_constant_tl(insn->part1)") + + arguments = ", ".join(declared) + f.write(f" gen_helper_{tag}({arguments});\n") ## Write all the outputs for regtype, regid in regs: if hex_common.is_written(regid): - genptr_dst_write_opn(f, regtype, regid, tag) + reg = hex_common.registers[f"{regtype}{regid}"] + reg.genptr_dst_write(f, tag) f.write("}\n\n") @@ -632,6 +147,7 @@ def main(): hex_common.read_overrides_file(sys.argv[3]) hex_common.read_overrides_file(sys.argv[4]) hex_common.calculate_attribs() + hex_common.init_registers() ## Whether or not idef-parser is enabled is ## determined by the number of arguments to ## this script: diff --git a/target/hexagon/hex_common.py b/target/hexagon/hex_common.py index 0da65d6dd6..13ee55b6b2 100755 --- a/target/hexagon/hex_common.py +++ b/target/hexagon/hex_common.py @@ -26,6 +26,8 @@ attribdict = {} # tag -> attributes macros = {} # macro -> macro information... attribinfo = {} # Register information and misc +registers = {} # register -> register functions +new_registers = {} tags = [] # list of all tags overrides = {} # tags with helper overrides idef_parser_enabled = {} # tags enabled for idef-parser @@ -350,3 +352,468 @@ def read_idef_parser_enabled_file(name): with open(name, "r") as idef_parser_enabled_file: lines = idef_parser_enabled_file.read().strip().split("\n") idef_parser_enabled = set(lines) + + +def hvx_newv(tag): + if is_new_result(tag): + return "EXT_NEW" + elif is_tmp_result(tag): + return "EXT_TMP" + else: + return "EXT_DFL" + +class Register: + def __init__(self, regtype, regid): + self.regtype = regtype + self.regid = regid + self.regN = f"{regtype}{regid}N" + self.regV = f"{regtype}{regid}V" + def is_scalar_reg(self): + return True + def is_hvx_reg(self): + return False + def idef_arg(self, declared): + declared.append(self.regV) + +class Dest(Register): + def is_written(self): + return True + def is_writeonly(self): + return True + def is_read(self): + return False + def is_readwrite(self): + return False + +class Source(Register): + def is_written(self): + return False + def is_writeonly(self): + return False + def is_read(self): + return True + def is_readwrite(self): + return False + +class ReadWrite(Register): + def is_written(self): + return True + def is_writeonly(self): + return False + def is_read(self): + return True + def is_readwrite(self): + return True + +class GprDest(Dest): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write(f" TCGv {self.regV} = get_result_gpr(ctx, {self.regN});\n") + def genptr_dst_write(self, f, tag): + f.write(f" gen_log_reg_write(ctx, {self.regN}, {self.regV});\n") + +class GprSource(Source): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write(f" TCGv {self.regV} = hex_gpr[{self.regN}];\n") + +class GprNewSource(Source): + def genptr_decl(self, f, tag, regno): + self.regV = self.regN + f.write( + f" TCGv {self.regV} = " + f"get_result_gpr(ctx, insn->regno[{regno}]);\n" + ) + +class GprReadWrite(ReadWrite): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write(f" TCGv {self.regV} = get_result_gpr(ctx, {self.regN});\n") + ## For read/write registers, we need to get the original value into + ## the result TCGv. For conditional instructions, this is done in + ## gen_start_packet. For unconditional instructions, we do it here. + if "A_CONDEXEC" not in attribdict[tag]: + f.write(f" tcg_gen_mov_tl({self.regV}, hex_gpr[{self.regN}]);\n") + def genptr_dst_write(self, f, tag): + f.write(f" gen_log_reg_write(ctx, {self.regN}, {self.regV});\n") + +class ControlDest(Dest): + def genptr_decl(self, f, tag, regno): + f.write( + f" const int {self.regN} = " + f"insn->regno[{regno}] + HEX_REG_SA0;\n" + ) + f.write(f" TCGv {self.regV} = get_result_gpr(ctx, {self.regN});\n") + def genptr_dst_write(self, f, tag): + f.write(f" gen_write_ctrl_reg(ctx, {self.regN}, {self.regV});\n") + +class ControlSource(Source): + def genptr_decl(self, f, tag, regno): + f.write( + f" const int {self.regN} = " + f"insn->regno[{regno}] + HEX_REG_SA0;\n" + ) + f.write(f" TCGv {self.regV} = tcg_temp_new();\n") + f.write(f" gen_read_ctrl_reg(ctx, {self.regN}, {self.regV});\n") + +class ModifierSource(Source): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write(f" TCGv {self.regV} = hex_gpr[{self.regN} + HEX_REG_M0];\n") + def idef_arg(self, declared): + declared.append(self.regV) + declared.append(self.regN) + +class PredDest(Dest): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write(f" TCGv {self.regV} = tcg_temp_new();\n") + def genptr_dst_write(self, f, tag): + f.write(f" gen_log_pred_write(ctx, {self.regN}, {self.regV});\n") + +class PredSource(Source): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write(f" TCGv {self.regV} = hex_pred[{self.regN}];\n") + +class PredNewSource(Source): + def genptr_decl(self, f, tag, regno): + self.regV = self.regN + f.write( + f" TCGv {self.regV} = " + f"get_result_pred(ctx, insn->regno[{regno}]);\n" + ) + +class PredReadWrite(ReadWrite): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write(f" TCGv {self.regV} = tcg_temp_new();\n") + f.write(f" tcg_gen_mov_tl({self.regV}, hex_pred[{self.regN}]);\n") + def genptr_dst_write(self, f, tag): + f.write(f" gen_log_pred_write(ctx, {self.regN}, {self.regV});\n") + +class PairDest(Dest): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write( + f" TCGv_i64 {self.regV} = " + f"get_result_gpr_pair(ctx, {self.regN});\n" + ) + def genptr_dst_write(self, f, tag): + f.write(f" gen_log_reg_write_pair(ctx, {self.regN}, {self.regV});\n") + +class PairSource(Source): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write(f" TCGv_i64 {self.regV} = tcg_temp_new_i64();\n") + f.write(f" tcg_gen_concat_i32_i64({self.regV},\n") + f.write(f" hex_gpr[{self.regN}],\n") + f.write(f" hex_gpr[{self.regN} + 1]);\n") + +class PairReadWrite(ReadWrite): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write( + f" TCGv_i64 {self.regV} = " + f"get_result_gpr_pair(ctx, {self.regN});\n" + ) + f.write(f" tcg_gen_concat_i32_i64({self.regV},\n") + f.write(f" hex_gpr[{self.regN}],\n") + f.write(f" hex_gpr[{self.regN} + 1]);\n") + def genptr_dst_write(self, f, tag): + f.write(f" gen_log_reg_write_pair(ctx, {self.regN}, {self.regV});\n") + +class ControlPairDest(Dest): + def genptr_decl(self, f, tag, regno): + f.write( + f" const int {self.regN} = " + f"insn->regno[{regno}] + HEX_REG_SA0;\n" + ) + f.write( + f" TCGv_i64 {self.regV} = " + f"get_result_gpr_pair(ctx, {self.regN});\n" + ) + def genptr_dst_write(self, f, tag): + f.write( + f" gen_write_ctrl_reg_pair(ctx, {self.regN}, {self.regV});\n" + ) + +class ControlPairSource(Source): + def genptr_decl(self, f, tag, regno): + f.write( + f" const int {self.regN} = " + f"insn->regno[{regno}] + HEX_REG_SA0;\n" + ) + f.write(f" TCGv_i64 {self.regV} = tcg_temp_new_i64();\n") + f.write(f" gen_read_ctrl_reg_pair(ctx, {self.regN}, {self.regV});\n") + +class HvxDest(Dest): + def is_scalar_reg(self): + return False + def is_hvx_reg(self): + return True + +class HvxSource(Source): + def is_scalar_reg(self): + return False + def is_hvx_reg(self): + return True + +class HvxReadWrite(ReadWrite): + def is_scalar_reg(self): + return False + def is_hvx_reg(self): + return True + +class VRegDest(HvxDest): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = " f"insn->regno[{regno}];\n") + f.write(f" const intptr_t {self.regV}_off =\n") + if is_tmp_result(tag): + f.write(f" ctx_tmp_vreg_off(ctx, {self.regN}, 1, true);\n") + else: + f.write( + f" ctx_future_vreg_off(ctx, {self.regN}, 1, true);\n" + ) + if not skip_qemu_helper(tag): + f.write(f" TCGv_ptr {self.regV} = " "tcg_temp_new_ptr();\n") + f.write( + f" tcg_gen_addi_ptr({self.regV}, tcg_env, " + f"{self.regV}_off);\n" + ) + def genptr_dst_write(self, f, tag): + pass + +class VRegSource(HvxSource): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write(f" const intptr_t {self.regV}_off =\n") + f.write(f" vreg_src_off(ctx, {self.regN});\n") + if not skip_qemu_helper(tag): + f.write(f" TCGv_ptr {self.regV} = " "tcg_temp_new_ptr();\n") + f.write( + f" tcg_gen_addi_ptr({self.regV}, tcg_env, " + f"{self.regV}_off);\n" + ) + +class VRegNewSource(HvxSource): + def genptr_decl(self, f, tag, regno): + f.write(f" const intptr_t {self.regN}_num = insn->regno[{regno}];\n") + if skip_qemu_helper(tag): + f.write(f" const intptr_t {self.regN}_off =\n") + f.write( + f" ctx_future_vreg_off(ctx, {self.regN}_num, " + f"1, true);\n" + ) + else: + f.write( + f" TCGv {self.regN} = tcg_constant_tl({self.regN}_num);\n" + ) + +class VRegReadWrite(HvxReadWrite): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = " f"insn->regno[{regno}];\n") + f.write(f" const intptr_t {self.regV}_off =\n") + if is_tmp_result(tag): + f.write(f" ctx_tmp_vreg_off(ctx, {self.regN}, 1, true);\n") + else: + f.write( + f" ctx_future_vreg_off(ctx, {self.regN}, 1, true);\n" + ) + if not skip_qemu_helper(tag): + f.write(f" TCGv_ptr {self.regV} = " "tcg_temp_new_ptr();\n") + f.write( + f" tcg_gen_addi_ptr({self.regV}, tcg_env, " + f"{self.regV}_off);\n" + ) + f.write(f" tcg_gen_gvec_mov(MO_64, {self.regV}_off,\n") + f.write(f" vreg_src_off(ctx, {self.regN}),\n") + f.write(" sizeof(MMVector), sizeof(MMVector));\n") + def genptr_dst_write(self, f, tag): + pass + +class VRegTmp(HvxReadWrite): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = " f"insn->regno[{regno}];\n") + f.write(f" const intptr_t {self.regV}_off =\n") + f.write(" offsetof(CPUHexagonState, vtmp);\n") + if not skip_qemu_helper(tag): + f.write(f" TCGv_ptr {self.regV} = " "tcg_temp_new_ptr();\n") + f.write( + f" tcg_gen_addi_ptr({self.regV}, tcg_env, " + f"{self.regV}_off);\n" + ) + f.write(f" tcg_gen_gvec_mov(MO_64, {self.regV}_off,\n") + f.write(f" vreg_src_off(ctx, {self.regN}),\n") + f.write(f" sizeof(MMVector), sizeof(MMVector));\n") + def genptr_dst_write(self, f, tag): + f.write( + f" gen_log_vreg_write(ctx, {self.regV}_off, {self.regN}, " + f"{hvx_newv(tag)});\n" + ) + +class VRegPairDest(HvxDest): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write(f" const intptr_t {self.regV}_off =\n") + if is_tmp_result(tag): + f.write( + f" ctx_tmp_vreg_off(ctx, {self.regN}, 2, " "true);\n" + ) + else: + f.write( + f" ctx_future_vreg_off(ctx, {self.regN}, 2, true);\n" + ) + if not skip_qemu_helper(tag): + f.write(f" TCGv_ptr {self.regV} = tcg_temp_new_ptr();\n") + f.write( + f" tcg_gen_addi_ptr({self.regV}, tcg_env, " + f"{self.regV}_off);\n" + ) + def genptr_dst_write(self, f, tag): + pass + +class VRegPairSource(HvxSource): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write(f" const intptr_t {self.regV}_off =\n") + f.write(f" offsetof(CPUHexagonState, {self.regV});\n") + if not skip_qemu_helper(tag): + f.write(f" TCGv_ptr {self.regV} = " "tcg_temp_new_ptr();\n") + f.write( + f" tcg_gen_addi_ptr({self.regV}, tcg_env, " + f"{self.regV}_off);\n" + ) + f.write(f" tcg_gen_gvec_mov(MO_64, {self.regV}_off,\n") + f.write(f" vreg_src_off(ctx, {self.regN}),\n") + f.write(" sizeof(MMVector), sizeof(MMVector));\n") + f.write(" tcg_gen_gvec_mov(MO_64,\n") + f.write(f" {self.regV}_off + sizeof(MMVector),\n") + f.write(f" vreg_src_off(ctx, {self.regN} ^ 1),\n") + f.write(" sizeof(MMVector), sizeof(MMVector));\n") + +class VRegPairReadWrite(HvxReadWrite): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write(f" const intptr_t {self.regV}_off =\n") + f.write(f" offsetof(CPUHexagonState, {self.regV});\n") + if not skip_qemu_helper(tag): + f.write(f" TCGv_ptr {self.regV} = " "tcg_temp_new_ptr();\n") + f.write( + f" tcg_gen_addi_ptr({self.regV}, tcg_env, " + f"{self.regV}_off);\n" + ) + f.write(f" tcg_gen_gvec_mov(MO_64, {self.regV}_off,\n") + f.write(f" vreg_src_off(ctx, {self.regN}),\n") + f.write(" sizeof(MMVector), sizeof(MMVector));\n") + f.write(" tcg_gen_gvec_mov(MO_64,\n") + f.write(f" {self.regV}_off + sizeof(MMVector),\n") + f.write(f" vreg_src_off(ctx, {self.regN} ^ 1),\n") + f.write(" sizeof(MMVector), sizeof(MMVector));\n") + def genptr_dst_write(self, f, tag): + f.write( + f" gen_log_vreg_write_pair(ctx, {self.regV}_off, {self.regN}, " + f"{hvx_newv(tag)});\n" + ) + +class QRegDest(HvxDest): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write(f" const intptr_t {self.regV}_off =\n") + f.write(f" get_result_qreg(ctx, {self.regN});\n") + if not skip_qemu_helper(tag): + f.write(f" TCGv_ptr {self.regV} = " "tcg_temp_new_ptr();\n") + f.write( + f" tcg_gen_addi_ptr({self.regV}, tcg_env, " + f"{self.regV}_off);\n" + ) + def genptr_dst_write(self, f, tag): + pass + +class QRegSource(HvxSource): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write(f" const intptr_t {self.regV}_off =\n") + f.write(f" offsetof(CPUHexagonState, QRegs[{self.regN}]);\n") + if not skip_qemu_helper(tag): + f.write(f" TCGv_ptr {self.regV} = " "tcg_temp_new_ptr();\n") + f.write( + f" tcg_gen_addi_ptr({self.regV}, tcg_env, " + f"{self.regV}_off);\n" + ) + +class QRegReadWrite(HvxReadWrite): + def genptr_decl(self, f, tag, regno): + f.write(f" const int {self.regN} = insn->regno[{regno}];\n") + f.write(f" const intptr_t {self.regV}_off =\n") + f.write(f" get_result_qreg(ctx, {self.regN});\n") + if not skip_qemu_helper(tag): + f.write(f" TCGv_ptr {self.regV} = " "tcg_temp_new_ptr();\n") + f.write( + f" tcg_gen_addi_ptr({self.regV}, tcg_env, " + f"{self.regV}_off);\n" + ) + f.write(f" tcg_gen_gvec_mov(MO_64, {self.regV}_off,\n") + f.write(f" offsetof(CPUHexagonState, QRegs[{self.regN}]),\n") + f.write(" sizeof(MMQReg), sizeof(MMQReg));\n") + def genptr_dst_write(self, f, tag): + pass + +def init_registers(): + registers["Rd"] = GprDest("R", "d") + registers["Re"] = GprDest("R", "e") + registers["Rs"] = GprSource("R", "s") + registers["Rt"] = GprSource("R", "t") + registers["Ru"] = GprSource("R", "u") + registers["Rv"] = GprSource("R", "v") + registers["Rx"] = GprReadWrite("R", "x") + registers["Ry"] = GprReadWrite("R", "y") + registers["Cd"] = ControlDest("C", "d") + registers["Cs"] = ControlSource("C", "s") + registers["Mu"] = ModifierSource("M", "u") + registers["Pd"] = PredDest("P", "d") + registers["Pe"] = PredDest("P", "e") + registers["Ps"] = PredSource("P", "s") + registers["Pt"] = PredSource("P", "t") + registers["Pu"] = PredSource("P", "u") + registers["Pv"] = PredSource("P", "v") + registers["Px"] = PredReadWrite("P", "x") + registers["Rdd"] = PairDest("R", "dd") + registers["Ree"] = PairDest("R", "ee") + registers["Rss"] = PairSource("R", "ss") + registers["Rtt"] = PairSource("R", "tt") + registers["Rxx"] = PairReadWrite("R", "xx") + registers["Ryy"] = PairReadWrite("R", "yy") + registers["Cdd"] = ControlPairDest("C", "dd") + registers["Css"] = ControlPairSource("C", "ss") + registers["Vd"] = VRegDest("V", "d") + registers["Vs"] = VRegSource("V", "s") + registers["Vu"] = VRegSource("V", "u") + registers["Vv"] = VRegSource("V", "v") + registers["Vw"] = VRegSource("V", "w") + registers["Vx"] = VRegReadWrite("V", "x") + registers["Vy"] = VRegTmp("V", "y") + registers["Vdd"] = VRegPairDest("V", "dd") + registers["Vuu"] = VRegPairSource("V", "uu") + registers["Vvv"] = VRegPairSource("V", "vv") + registers["Vxx"] = VRegPairReadWrite("V", "xx") + registers["Qd"] = QRegDest("Q", "d") + registers["Qe"] = QRegDest("Q", "e") + registers["Qs"] = QRegSource("Q", "s") + registers["Qt"] = QRegSource("Q", "t") + registers["Qu"] = QRegSource("Q", "u") + registers["Qv"] = QRegSource("Q", "v") + registers["Qx"] = QRegReadWrite("Q", "x") + + new_registers["Ns"] = GprNewSource("N", "s") + new_registers["Nt"] = GprNewSource("N", "t") + new_registers["Pt"] = PredNewSource("P", "t") + new_registers["Pu"] = PredNewSource("P", "u") + new_registers["Pv"] = PredNewSource("P", "v") + new_registers["Os"] = VRegNewSource("O", "s") + +def get_register(tag, regtype, regid): + if is_old_val(regtype, regid, tag): + return registers[f"{regtype}{regid}"] + else: + return new_registers[f"{regtype}{regid}"]