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[88.21.205.129]) by smtp.gmail.com with ESMTPSA id cw7sm5317247ejc.13.2021.01.11.07.01.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Jan 2021 07:01:23 -0800 (PST) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH 1/5] tcg/arm: Hoist common argument loads in tcg_out_op() Date: Mon, 11 Jan 2021 16:01:10 +0100 Message-Id: <20210111150114.1415930-2-f4bug@amsat.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210111150114.1415930-1-f4bug@amsat.org> References: <20210111150114.1415930-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::531; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-ed1-x531.google.com X-Spam_score_int: -14 X-Spam_score: -1.5 X-Spam_bar: - X-Spam_report: (-1.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.248, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Aleksandar Rikalo , Cornelia Huck , qemu-riscv@nongnu.org, Stefan Weil , Huacai Chen , Richard Henderson , Thomas Huth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , qemu-s390x@nongnu.org, qemu-arm@nongnu.org, Alistair Francis , Palmer Dabbelt , Aurelien Jarno Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Philippe Mathieu-Daudé --- tcg/arm/tcg-target.c.inc | 173 +++++++++++++++++++-------------------- 1 file changed, 86 insertions(+), 87 deletions(-) diff --git a/tcg/arm/tcg-target.c.inc b/tcg/arm/tcg-target.c.inc index 0fd11264544..94cc12a0fc6 100644 --- a/tcg/arm/tcg-target.c.inc +++ b/tcg/arm/tcg-target.c.inc @@ -1747,15 +1747,24 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64) static void tcg_out_epilogue(TCGContext *s); -static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, - const TCGArg *args, const int *const_args) +static void tcg_out_op(TCGContext *s, TCGOpcode opc, + const TCGArg args[TCG_MAX_OP_ARGS], + const int const_args[TCG_MAX_OP_ARGS]) { TCGArg a0, a1, a2, a3, a4, a5; int c; + /* Hoist the loads of the most common arguments. */ + a0 = args[0]; + a1 = args[1]; + a2 = args[2]; + a3 = args[3]; + a4 = args[4]; + a5 = args[5]; + switch (opc) { case INDEX_op_exit_tb: - tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R0, args[0]); + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R0, a0); tcg_out_epilogue(s); break; case INDEX_op_goto_tb: @@ -1765,7 +1774,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGReg base = TCG_REG_PC; tcg_debug_assert(s->tb_jmp_insn_offset == 0); - ptr = (intptr_t)tcg_splitwx_to_rx(s->tb_jmp_target_addr + args[0]); + ptr = (intptr_t)tcg_splitwx_to_rx(s->tb_jmp_target_addr + a0); dif = tcg_pcrel_diff(s, (void *)ptr) - 8; dil = sextract32(dif, 0, 12); if (dif != dil) { @@ -1778,39 +1787,39 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, tcg_out_movi32(s, COND_AL, base, ptr - dil); } tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, base, dil); - set_jmp_reset_offset(s, args[0]); + set_jmp_reset_offset(s, a0); } break; case INDEX_op_goto_ptr: - tcg_out_bx(s, COND_AL, args[0]); + tcg_out_bx(s, COND_AL, a0); break; case INDEX_op_br: - tcg_out_goto_label(s, COND_AL, arg_label(args[0])); + tcg_out_goto_label(s, COND_AL, arg_label(a0)); break; case INDEX_op_ld8u_i32: - tcg_out_ld8u(s, COND_AL, args[0], args[1], args[2]); + tcg_out_ld8u(s, COND_AL, a0, a1, a2); break; case INDEX_op_ld8s_i32: - tcg_out_ld8s(s, COND_AL, args[0], args[1], args[2]); + tcg_out_ld8s(s, COND_AL, a0, a1, a2); break; case INDEX_op_ld16u_i32: - tcg_out_ld16u(s, COND_AL, args[0], args[1], args[2]); + tcg_out_ld16u(s, COND_AL, a0, a1, a2); break; case INDEX_op_ld16s_i32: - tcg_out_ld16s(s, COND_AL, args[0], args[1], args[2]); + tcg_out_ld16s(s, COND_AL, a0, a1, a2); break; case INDEX_op_ld_i32: - tcg_out_ld32u(s, COND_AL, args[0], args[1], args[2]); + tcg_out_ld32u(s, COND_AL, a0, a1, a2); break; case INDEX_op_st8_i32: - tcg_out_st8(s, COND_AL, args[0], args[1], args[2]); + tcg_out_st8(s, COND_AL, a0, a1, a2); break; case INDEX_op_st16_i32: - tcg_out_st16(s, COND_AL, args[0], args[1], args[2]); + tcg_out_st16(s, COND_AL, a0, a1, a2); break; case INDEX_op_st_i32: - tcg_out_st32(s, COND_AL, args[0], args[1], args[2]); + tcg_out_st32(s, COND_AL, a0, a1, a2); break; case INDEX_op_movcond_i32: @@ -1818,34 +1827,33 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, * so we only need to do "if condition passed, move v1 to dest". */ tcg_out_dat_rIN(s, COND_AL, ARITH_CMP, ARITH_CMN, 0, - args[1], args[2], const_args[2]); - tcg_out_dat_rIK(s, tcg_cond_to_arm_cond[args[5]], ARITH_MOV, - ARITH_MVN, args[0], 0, args[3], const_args[3]); + a1, a2, const_args[2]); + tcg_out_dat_rIK(s, tcg_cond_to_arm_cond[a5], ARITH_MOV, + ARITH_MVN, a0, 0, a3, const_args[3]); break; case INDEX_op_add_i32: tcg_out_dat_rIN(s, COND_AL, ARITH_ADD, ARITH_SUB, - args[0], args[1], args[2], const_args[2]); + a0, a1, a2, const_args[2]); break; case INDEX_op_sub_i32: if (const_args[1]) { if (const_args[2]) { - tcg_out_movi32(s, COND_AL, args[0], args[1] - args[2]); + tcg_out_movi32(s, COND_AL, a0, a1 - a2); } else { - tcg_out_dat_rI(s, COND_AL, ARITH_RSB, - args[0], args[2], args[1], 1); + tcg_out_dat_rI(s, COND_AL, ARITH_RSB, a0, a2, a1, 1); } } else { tcg_out_dat_rIN(s, COND_AL, ARITH_SUB, ARITH_ADD, - args[0], args[1], args[2], const_args[2]); + a0, a1, a2, const_args[2]); } break; case INDEX_op_and_i32: tcg_out_dat_rIK(s, COND_AL, ARITH_AND, ARITH_BIC, - args[0], args[1], args[2], const_args[2]); + a0, a1, a2, const_args[2]); break; case INDEX_op_andc_i32: tcg_out_dat_rIK(s, COND_AL, ARITH_BIC, ARITH_AND, - args[0], args[1], args[2], const_args[2]); + a0, a1, a2, const_args[2]); break; case INDEX_op_or_i32: c = ARITH_ORR; @@ -1854,11 +1862,9 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, c = ARITH_EOR; /* Fall through. */ gen_arith: - tcg_out_dat_rI(s, COND_AL, c, args[0], args[1], args[2], const_args[2]); + tcg_out_dat_rI(s, COND_AL, c, a0, a1, a2, const_args[2]); break; case INDEX_op_add2_i32: - a0 = args[0], a1 = args[1], a2 = args[2]; - a3 = args[3], a4 = args[4], a5 = args[5]; if (a0 == a3 || (a0 == a5 && !const_args[5])) { a0 = TCG_REG_TMP; } @@ -1866,11 +1872,9 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, a0, a2, a4, const_args[4]); tcg_out_dat_rIK(s, COND_AL, ARITH_ADC, ARITH_SBC, a1, a3, a5, const_args[5]); - tcg_out_mov_reg(s, COND_AL, args[0], a0); + tcg_out_mov_reg(s, COND_AL, a0, a0); break; case INDEX_op_sub2_i32: - a0 = args[0], a1 = args[1], a2 = args[2]; - a3 = args[3], a4 = args[4], a5 = args[5]; if ((a0 == a3 && !const_args[3]) || (a0 == a5 && !const_args[5])) { a0 = TCG_REG_TMP; } @@ -1894,68 +1898,64 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, tcg_out_dat_rIK(s, COND_AL, ARITH_SBC, ARITH_ADC, a1, a3, a5, const_args[5]); } - tcg_out_mov_reg(s, COND_AL, args[0], a0); + tcg_out_mov_reg(s, COND_AL, a0, a0); break; case INDEX_op_neg_i32: - tcg_out_dat_imm(s, COND_AL, ARITH_RSB, args[0], args[1], 0); + tcg_out_dat_imm(s, COND_AL, ARITH_RSB, a0, a1, 0); break; case INDEX_op_not_i32: - tcg_out_dat_reg(s, COND_AL, - ARITH_MVN, args[0], 0, args[1], SHIFT_IMM_LSL(0)); + tcg_out_dat_reg(s, COND_AL, ARITH_MVN, a0, 0, a1, SHIFT_IMM_LSL(0)); break; case INDEX_op_mul_i32: - tcg_out_mul32(s, COND_AL, args[0], args[1], args[2]); + tcg_out_mul32(s, COND_AL, a0, a1, a2); break; case INDEX_op_mulu2_i32: - tcg_out_umull32(s, COND_AL, args[0], args[1], args[2], args[3]); + tcg_out_umull32(s, COND_AL, a0, a1, a2, a3); break; case INDEX_op_muls2_i32: - tcg_out_smull32(s, COND_AL, args[0], args[1], args[2], args[3]); + tcg_out_smull32(s, COND_AL, a0, a1, a2, a3); break; - /* XXX: Perhaps args[2] & 0x1f is wrong */ + /* XXX: Perhaps a2 & 0x1f is wrong */ case INDEX_op_shl_i32: c = const_args[2] ? - SHIFT_IMM_LSL(args[2] & 0x1f) : SHIFT_REG_LSL(args[2]); + SHIFT_IMM_LSL(a2 & 0x1f) : SHIFT_REG_LSL(a2); goto gen_shift32; case INDEX_op_shr_i32: - c = const_args[2] ? (args[2] & 0x1f) ? SHIFT_IMM_LSR(args[2] & 0x1f) : - SHIFT_IMM_LSL(0) : SHIFT_REG_LSR(args[2]); + c = const_args[2] ? (a2 & 0x1f) ? SHIFT_IMM_LSR(a2 & 0x1f) : + SHIFT_IMM_LSL(0) : SHIFT_REG_LSR(a2); goto gen_shift32; case INDEX_op_sar_i32: - c = const_args[2] ? (args[2] & 0x1f) ? SHIFT_IMM_ASR(args[2] & 0x1f) : - SHIFT_IMM_LSL(0) : SHIFT_REG_ASR(args[2]); + c = const_args[2] ? (a2 & 0x1f) ? SHIFT_IMM_ASR(a2 & 0x1f) : + SHIFT_IMM_LSL(0) : SHIFT_REG_ASR(a2); goto gen_shift32; case INDEX_op_rotr_i32: - c = const_args[2] ? (args[2] & 0x1f) ? SHIFT_IMM_ROR(args[2] & 0x1f) : - SHIFT_IMM_LSL(0) : SHIFT_REG_ROR(args[2]); + c = const_args[2] ? (a2 & 0x1f) ? SHIFT_IMM_ROR(a2 & 0x1f) : + SHIFT_IMM_LSL(0) : SHIFT_REG_ROR(a2); /* Fall through. */ gen_shift32: - tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[1], c); + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, a0, 0, a1, c); break; case INDEX_op_rotl_i32: if (const_args[2]) { - tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[1], - ((0x20 - args[2]) & 0x1f) ? - SHIFT_IMM_ROR((0x20 - args[2]) & 0x1f) : + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, a0, 0, a1, + ((0x20 - a2) & 0x1f) ? + SHIFT_IMM_ROR((0x20 - a2) & 0x1f) : SHIFT_IMM_LSL(0)); } else { - tcg_out_dat_imm(s, COND_AL, ARITH_RSB, TCG_REG_TMP, args[2], 0x20); - tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[1], + tcg_out_dat_imm(s, COND_AL, ARITH_RSB, TCG_REG_TMP, a2, 0x20); + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, a0, 0, a1, SHIFT_REG_ROR(TCG_REG_TMP)); } break; case INDEX_op_ctz_i32: - tcg_out_dat_reg(s, COND_AL, INSN_RBIT, TCG_REG_TMP, 0, args[1], 0); + tcg_out_dat_reg(s, COND_AL, INSN_RBIT, TCG_REG_TMP, 0, a1, 0); a1 = TCG_REG_TMP; goto do_clz; case INDEX_op_clz_i32: - a1 = args[1]; do_clz: - a0 = args[0]; - a2 = args[2]; c = const_args[2]; if (c && a2 == 32) { tcg_out_dat_reg(s, COND_AL, INSN_CLZ, a0, 0, a1, 0); @@ -1970,28 +1970,28 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, case INDEX_op_brcond_i32: tcg_out_dat_rIN(s, COND_AL, ARITH_CMP, ARITH_CMN, 0, - args[0], args[1], const_args[1]); - tcg_out_goto_label(s, tcg_cond_to_arm_cond[args[2]], - arg_label(args[3])); + a0, a1, const_args[1]); + tcg_out_goto_label(s, tcg_cond_to_arm_cond[a2], + arg_label(a3)); break; case INDEX_op_setcond_i32: tcg_out_dat_rIN(s, COND_AL, ARITH_CMP, ARITH_CMN, 0, - args[1], args[2], const_args[2]); - tcg_out_dat_imm(s, tcg_cond_to_arm_cond[args[3]], - ARITH_MOV, args[0], 0, 1); - tcg_out_dat_imm(s, tcg_cond_to_arm_cond[tcg_invert_cond(args[3])], - ARITH_MOV, args[0], 0, 0); + a1, a2, const_args[2]); + tcg_out_dat_imm(s, tcg_cond_to_arm_cond[a3], + ARITH_MOV, a0, 0, 1); + tcg_out_dat_imm(s, tcg_cond_to_arm_cond[tcg_invert_cond(a3)], + ARITH_MOV, a0, 0, 0); break; case INDEX_op_brcond2_i32: c = tcg_out_cmp2(s, args, const_args); - tcg_out_goto_label(s, tcg_cond_to_arm_cond[c], arg_label(args[5])); + tcg_out_goto_label(s, tcg_cond_to_arm_cond[c], arg_label(a5)); break; case INDEX_op_setcond2_i32: c = tcg_out_cmp2(s, args + 1, const_args + 1); - tcg_out_dat_imm(s, tcg_cond_to_arm_cond[c], ARITH_MOV, args[0], 0, 1); + tcg_out_dat_imm(s, tcg_cond_to_arm_cond[c], ARITH_MOV, a0, 0, 1); tcg_out_dat_imm(s, tcg_cond_to_arm_cond[tcg_invert_cond(c)], - ARITH_MOV, args[0], 0, 0); + ARITH_MOV, a0, 0, 0); break; case INDEX_op_qemu_ld_i32: @@ -2008,63 +2008,62 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, break; case INDEX_op_bswap16_i32: - tcg_out_bswap16(s, COND_AL, args[0], args[1]); + tcg_out_bswap16(s, COND_AL, a0, a1); break; case INDEX_op_bswap32_i32: - tcg_out_bswap32(s, COND_AL, args[0], args[1]); + tcg_out_bswap32(s, COND_AL, a0, a1); break; case INDEX_op_ext8s_i32: - tcg_out_ext8s(s, COND_AL, args[0], args[1]); + tcg_out_ext8s(s, COND_AL, a0, a1); break; case INDEX_op_ext16s_i32: - tcg_out_ext16s(s, COND_AL, args[0], args[1]); + tcg_out_ext16s(s, COND_AL, a0, a1); break; case INDEX_op_ext16u_i32: - tcg_out_ext16u(s, COND_AL, args[0], args[1]); + tcg_out_ext16u(s, COND_AL, a0, a1); break; case INDEX_op_deposit_i32: - tcg_out_deposit(s, COND_AL, args[0], args[2], - args[3], args[4], const_args[2]); + tcg_out_deposit(s, COND_AL, a0, a2, a3, a4, const_args[2]); break; case INDEX_op_extract_i32: - tcg_out_extract(s, COND_AL, args[0], args[1], args[2], args[3]); + tcg_out_extract(s, COND_AL, a0, a1, a2, a3); break; case INDEX_op_sextract_i32: - tcg_out_sextract(s, COND_AL, args[0], args[1], args[2], args[3]); + tcg_out_sextract(s, COND_AL, a0, a1, a2, a3); break; case INDEX_op_extract2_i32: /* ??? These optimization vs zero should be generic. */ /* ??? But we can't substitute 2 for 1 in the opcode stream yet. */ if (const_args[1]) { if (const_args[2]) { - tcg_out_movi(s, TCG_TYPE_REG, args[0], 0); + tcg_out_movi(s, TCG_TYPE_REG, a0, 0); } else { - tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, - args[2], SHIFT_IMM_LSL(32 - args[3])); + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, a0, 0, + a2, SHIFT_IMM_LSL(32 - a3)); } } else if (const_args[2]) { - tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, - args[1], SHIFT_IMM_LSR(args[3])); + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, a0, 0, + a1, SHIFT_IMM_LSR(a3)); } else { /* We can do extract2 in 2 insns, vs the 3 required otherwise. */ tcg_out_dat_reg(s, COND_AL, ARITH_MOV, TCG_REG_TMP, 0, - args[2], SHIFT_IMM_LSL(32 - args[3])); - tcg_out_dat_reg(s, COND_AL, ARITH_ORR, args[0], TCG_REG_TMP, - args[1], SHIFT_IMM_LSR(args[3])); + a2, SHIFT_IMM_LSL(32 - a3)); + tcg_out_dat_reg(s, COND_AL, ARITH_ORR, a0, TCG_REG_TMP, + a1, SHIFT_IMM_LSR(a3)); } break; case INDEX_op_div_i32: - tcg_out_sdiv(s, COND_AL, args[0], args[1], args[2]); + tcg_out_sdiv(s, COND_AL, a0, a1, a2); break; case INDEX_op_divu_i32: - tcg_out_udiv(s, COND_AL, args[0], args[1], args[2]); + tcg_out_udiv(s, COND_AL, a0, a1, a2); break; case INDEX_op_mb: - tcg_out_mb(s, args[0]); + tcg_out_mb(s, a0); break; case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */ -- 2.26.2