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[73.169.12.54]) by smtp.gmail.com with ESMTPSA id h20-20020a02c734000000b00474e9a77424sm2233990jao.147.2024.03.06.19.23.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Mar 2024 19:23:31 -0800 (PST) From: Taylor Simpson To: qemu-devel@nongnu.org Cc: bcain@quicinc.com, quic_mathbern@quicinc.com, sidneym@quicinc.com, quic_mliebel@quicinc.com, richard.henderson@linaro.org, philmd@linaro.org, ale@rev.ng, anjo@rev.ng, ltaylorsimpson@gmail.com Subject: [PATCH v2 2/9] Hexagon (target/hexagon) Mark new_read_idx in trans functions Date: Wed, 6 Mar 2024 20:23:20 -0700 Message-Id: <20240307032327.4799-3-ltaylorsimpson@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240307032327.4799-1-ltaylorsimpson@gmail.com> References: <20240307032327.4799-1-ltaylorsimpson@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::d31; envelope-from=ltaylorsimpson@gmail.com; helo=mail-io1-xd31.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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Check that the value matches opcode_reginfo Signed-off-by: Taylor Simpson Reviewed-by: Brian Cain --- target/hexagon/insn.h | 3 ++- target/hexagon/decode.c | 2 ++ target/hexagon/mmvec/decode_ext_mmvec.c | 2 ++ target/hexagon/gen_trans_funcs.py | 15 ++++++++++----- 4 files changed, 16 insertions(+), 6 deletions(-) diff --git a/target/hexagon/insn.h b/target/hexagon/insn.h index 3e7a22c91e..36502bf056 100644 --- a/target/hexagon/insn.h +++ b/target/hexagon/insn.h @@ -1,5 +1,5 @@ /* - * Copyright(c) 2019-2022 Qualcomm Innovation Center, Inc. All Rights Reserved. + * Copyright(c) 2019-2024 Qualcomm Innovation Center, Inc. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -39,6 +39,7 @@ struct Instruction { uint32_t slot:3; uint32_t which_extended:1; /* If has an extender, which immediate */ uint32_t new_value_producer_slot:4; + int32_t new_read_idx; bool part1; /* * cmp-jumps are split into two insns. diff --git a/target/hexagon/decode.c b/target/hexagon/decode.c index a40210ca1e..4595e30384 100644 --- a/target/hexagon/decode.c +++ b/target/hexagon/decode.c @@ -131,6 +131,8 @@ decode_fill_newvalue_regno(Packet *packet) use_regidx = strchr(opcode_reginfo[use_opcode], 's') - opcode_reginfo[use_opcode]; } + g_assert(packet->insn[i].new_read_idx != -1 && + packet->insn[i].new_read_idx == use_regidx); /* * What's encoded at the N-field is the offset to who's producing diff --git a/target/hexagon/mmvec/decode_ext_mmvec.c b/target/hexagon/mmvec/decode_ext_mmvec.c index 202d84c7c0..e9007f5d71 100644 --- a/target/hexagon/mmvec/decode_ext_mmvec.c +++ b/target/hexagon/mmvec/decode_ext_mmvec.c @@ -41,6 +41,8 @@ check_new_value(Packet *pkt) GET_ATTRIB(use_opcode, A_STORE)) { int use_regidx = strchr(opcode_reginfo[use_opcode], 's') - opcode_reginfo[use_opcode]; + g_assert(pkt->insn[i].new_read_idx != -1 && + pkt->insn[i].new_read_idx == use_regidx); /* * What's encoded at the N-field is the offset to who's producing * the value. diff --git a/target/hexagon/gen_trans_funcs.py b/target/hexagon/gen_trans_funcs.py index 53e844a44b..8acecdb993 100755 --- a/target/hexagon/gen_trans_funcs.py +++ b/target/hexagon/gen_trans_funcs.py @@ -68,6 +68,7 @@ def mark_which_imm_extended(f, tag): ## insn->regno[0] = args->Rd; ## insn->regno[1] = args->Rs; ## insn->regno[2] = args->Rt; +## insn->new_read_idx = -1; ## return true; ## } ## @@ -84,14 +85,14 @@ def gen_trans_funcs(f): insn->opcode = {tag}; """)) - regno = 0 - for reg in regs: - reg_type = reg[0] - reg_id = reg[1] + new_read_idx = -1 + for regno, (reg_type, reg_id, *_) in enumerate(regs): + reg = hex_common.get_register(tag, reg_type, reg_id) f.write(code_fmt(f"""\ insn->regno[{regno}] = args->{reg_type}{reg_id}; """)) - regno += 1 + if reg.is_read() and reg.is_new(): + new_read_idx = regno if len(imms) != 0: mark_which_imm_extended(f, tag) @@ -112,6 +113,9 @@ def gen_trans_funcs(f): insn->immed[{immno}] = args->{imm_type}{imm_letter}; """)) + f.write(code_fmt(f"""\ + insn->new_read_idx = {new_read_idx}; + """)) f.write(textwrap.dedent(f"""\ return true; {close_curly} @@ -120,5 +124,6 @@ def gen_trans_funcs(f): if __name__ == "__main__": hex_common.read_semantics_file(sys.argv[1]) + hex_common.init_registers() with open(sys.argv[2], "w") as f: gen_trans_funcs(f)