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6c9f86d363
To support BPF sign-extend load instructions, add encoders for LDRSB/LDRSH/LDRSW. LDRSB/LDRSH/LDRSW (immediate) is encoded as follows: 3 2 2 2 2 1 0 0 0 7 6 4 2 0 5 0 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | sz|1 1 1|0|0 1|opc| imm12 | Rn | Rt | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ LDRSB/LDRSH/LDRSW (register) is encoded as follows: 3 2 2 2 2 2 1 1 1 1 0 0 0 7 6 4 2 1 6 3 2 0 5 0 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | sz|1 1 1|0|0 0|opc|1| Rm | opt |S|1 0| Rn | Rt | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ where: - sz indicates whether 8-bit, 16-bit or 32-bit data is to be loaded - opc opc[1] (bit 23) is always 1 and opc[0] == 1 indicates regsize is 32-bit. Since BPF signed load instructions always exend the sign bit to bit 63 regardless of whether it loads an 8-bit, 16-bit or 32-bit data. So only 64-bit register size is required. That is, it's sufficient to set field opc fixed to 0x2. - opt Indicates whether to sign extend the offset register Rm and the effective bits of Rm. We set opt to 0x7 (SXTX) since we'll use Rm as a sgined 64-bit value in BPF. - S Optional only when opt field is 0x3 (LSL) In short, the above fields are encoded to the values listed below. sz opc opt S LDRSB (immediate) 0x0 0x2 na na LDRSH (immediate) 0x1 0x2 na na LDRSW (immediate) 0x2 0x2 na na LDRSB (register) 0x0 0x2 0x7 0 LDRSH (register) 0x1 0x2 0x7 0 LDRSW (register) 0x2 0x2 0x7 0 Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Florent Revest <revest@chromium.org> Acked-by: Florent Revest <revest@chromium.org> Link: https://lore.kernel.org/bpf/20230815154158.717901-2-xukuohai@huaweicloud.com
713 lines
23 KiB
C
713 lines
23 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2013 Huawei Ltd.
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* Author: Jiang Liu <liuj97@gmail.com>
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*
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* Copyright (C) 2014 Zi Shen Lim <zlim.lnx@gmail.com>
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*/
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#ifndef __ASM_INSN_H
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#define __ASM_INSN_H
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#include <linux/build_bug.h>
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#include <linux/types.h>
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#include <asm/insn-def.h>
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#ifndef __ASSEMBLY__
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enum aarch64_insn_hint_cr_op {
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AARCH64_INSN_HINT_NOP = 0x0 << 5,
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AARCH64_INSN_HINT_YIELD = 0x1 << 5,
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AARCH64_INSN_HINT_WFE = 0x2 << 5,
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AARCH64_INSN_HINT_WFI = 0x3 << 5,
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AARCH64_INSN_HINT_SEV = 0x4 << 5,
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AARCH64_INSN_HINT_SEVL = 0x5 << 5,
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AARCH64_INSN_HINT_XPACLRI = 0x07 << 5,
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AARCH64_INSN_HINT_PACIA_1716 = 0x08 << 5,
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AARCH64_INSN_HINT_PACIB_1716 = 0x0A << 5,
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AARCH64_INSN_HINT_AUTIA_1716 = 0x0C << 5,
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AARCH64_INSN_HINT_AUTIB_1716 = 0x0E << 5,
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AARCH64_INSN_HINT_PACIAZ = 0x18 << 5,
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AARCH64_INSN_HINT_PACIASP = 0x19 << 5,
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AARCH64_INSN_HINT_PACIBZ = 0x1A << 5,
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AARCH64_INSN_HINT_PACIBSP = 0x1B << 5,
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AARCH64_INSN_HINT_AUTIAZ = 0x1C << 5,
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AARCH64_INSN_HINT_AUTIASP = 0x1D << 5,
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AARCH64_INSN_HINT_AUTIBZ = 0x1E << 5,
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AARCH64_INSN_HINT_AUTIBSP = 0x1F << 5,
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AARCH64_INSN_HINT_ESB = 0x10 << 5,
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AARCH64_INSN_HINT_PSB = 0x11 << 5,
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AARCH64_INSN_HINT_TSB = 0x12 << 5,
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AARCH64_INSN_HINT_CSDB = 0x14 << 5,
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AARCH64_INSN_HINT_CLEARBHB = 0x16 << 5,
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AARCH64_INSN_HINT_BTI = 0x20 << 5,
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AARCH64_INSN_HINT_BTIC = 0x22 << 5,
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AARCH64_INSN_HINT_BTIJ = 0x24 << 5,
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AARCH64_INSN_HINT_BTIJC = 0x26 << 5,
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};
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enum aarch64_insn_imm_type {
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AARCH64_INSN_IMM_ADR,
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AARCH64_INSN_IMM_26,
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AARCH64_INSN_IMM_19,
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AARCH64_INSN_IMM_16,
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AARCH64_INSN_IMM_14,
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AARCH64_INSN_IMM_12,
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AARCH64_INSN_IMM_9,
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AARCH64_INSN_IMM_7,
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AARCH64_INSN_IMM_6,
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AARCH64_INSN_IMM_S,
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AARCH64_INSN_IMM_R,
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AARCH64_INSN_IMM_N,
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AARCH64_INSN_IMM_MAX
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};
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enum aarch64_insn_register_type {
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AARCH64_INSN_REGTYPE_RT,
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AARCH64_INSN_REGTYPE_RN,
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AARCH64_INSN_REGTYPE_RT2,
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AARCH64_INSN_REGTYPE_RM,
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AARCH64_INSN_REGTYPE_RD,
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AARCH64_INSN_REGTYPE_RA,
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AARCH64_INSN_REGTYPE_RS,
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};
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enum aarch64_insn_register {
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AARCH64_INSN_REG_0 = 0,
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AARCH64_INSN_REG_1 = 1,
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AARCH64_INSN_REG_2 = 2,
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AARCH64_INSN_REG_3 = 3,
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AARCH64_INSN_REG_4 = 4,
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AARCH64_INSN_REG_5 = 5,
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AARCH64_INSN_REG_6 = 6,
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AARCH64_INSN_REG_7 = 7,
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AARCH64_INSN_REG_8 = 8,
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AARCH64_INSN_REG_9 = 9,
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AARCH64_INSN_REG_10 = 10,
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AARCH64_INSN_REG_11 = 11,
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AARCH64_INSN_REG_12 = 12,
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AARCH64_INSN_REG_13 = 13,
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AARCH64_INSN_REG_14 = 14,
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AARCH64_INSN_REG_15 = 15,
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AARCH64_INSN_REG_16 = 16,
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AARCH64_INSN_REG_17 = 17,
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AARCH64_INSN_REG_18 = 18,
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AARCH64_INSN_REG_19 = 19,
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AARCH64_INSN_REG_20 = 20,
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AARCH64_INSN_REG_21 = 21,
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AARCH64_INSN_REG_22 = 22,
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AARCH64_INSN_REG_23 = 23,
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AARCH64_INSN_REG_24 = 24,
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AARCH64_INSN_REG_25 = 25,
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AARCH64_INSN_REG_26 = 26,
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AARCH64_INSN_REG_27 = 27,
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AARCH64_INSN_REG_28 = 28,
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AARCH64_INSN_REG_29 = 29,
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AARCH64_INSN_REG_FP = 29, /* Frame pointer */
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AARCH64_INSN_REG_30 = 30,
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AARCH64_INSN_REG_LR = 30, /* Link register */
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AARCH64_INSN_REG_ZR = 31, /* Zero: as source register */
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AARCH64_INSN_REG_SP = 31 /* Stack pointer: as load/store base reg */
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};
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enum aarch64_insn_special_register {
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AARCH64_INSN_SPCLREG_SPSR_EL1 = 0xC200,
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AARCH64_INSN_SPCLREG_ELR_EL1 = 0xC201,
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AARCH64_INSN_SPCLREG_SP_EL0 = 0xC208,
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AARCH64_INSN_SPCLREG_SPSEL = 0xC210,
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AARCH64_INSN_SPCLREG_CURRENTEL = 0xC212,
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AARCH64_INSN_SPCLREG_DAIF = 0xDA11,
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AARCH64_INSN_SPCLREG_NZCV = 0xDA10,
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AARCH64_INSN_SPCLREG_FPCR = 0xDA20,
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AARCH64_INSN_SPCLREG_DSPSR_EL0 = 0xDA28,
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AARCH64_INSN_SPCLREG_DLR_EL0 = 0xDA29,
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AARCH64_INSN_SPCLREG_SPSR_EL2 = 0xE200,
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AARCH64_INSN_SPCLREG_ELR_EL2 = 0xE201,
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AARCH64_INSN_SPCLREG_SP_EL1 = 0xE208,
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AARCH64_INSN_SPCLREG_SPSR_INQ = 0xE218,
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AARCH64_INSN_SPCLREG_SPSR_ABT = 0xE219,
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AARCH64_INSN_SPCLREG_SPSR_UND = 0xE21A,
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AARCH64_INSN_SPCLREG_SPSR_FIQ = 0xE21B,
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AARCH64_INSN_SPCLREG_SPSR_EL3 = 0xF200,
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AARCH64_INSN_SPCLREG_ELR_EL3 = 0xF201,
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AARCH64_INSN_SPCLREG_SP_EL2 = 0xF210
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};
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enum aarch64_insn_variant {
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AARCH64_INSN_VARIANT_32BIT,
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AARCH64_INSN_VARIANT_64BIT
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};
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enum aarch64_insn_condition {
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AARCH64_INSN_COND_EQ = 0x0, /* == */
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AARCH64_INSN_COND_NE = 0x1, /* != */
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AARCH64_INSN_COND_CS = 0x2, /* unsigned >= */
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AARCH64_INSN_COND_CC = 0x3, /* unsigned < */
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AARCH64_INSN_COND_MI = 0x4, /* < 0 */
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AARCH64_INSN_COND_PL = 0x5, /* >= 0 */
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AARCH64_INSN_COND_VS = 0x6, /* overflow */
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AARCH64_INSN_COND_VC = 0x7, /* no overflow */
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AARCH64_INSN_COND_HI = 0x8, /* unsigned > */
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AARCH64_INSN_COND_LS = 0x9, /* unsigned <= */
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AARCH64_INSN_COND_GE = 0xa, /* signed >= */
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AARCH64_INSN_COND_LT = 0xb, /* signed < */
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AARCH64_INSN_COND_GT = 0xc, /* signed > */
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AARCH64_INSN_COND_LE = 0xd, /* signed <= */
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AARCH64_INSN_COND_AL = 0xe, /* always */
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};
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enum aarch64_insn_branch_type {
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AARCH64_INSN_BRANCH_NOLINK,
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AARCH64_INSN_BRANCH_LINK,
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AARCH64_INSN_BRANCH_RETURN,
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AARCH64_INSN_BRANCH_COMP_ZERO,
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AARCH64_INSN_BRANCH_COMP_NONZERO,
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};
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enum aarch64_insn_size_type {
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AARCH64_INSN_SIZE_8,
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AARCH64_INSN_SIZE_16,
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AARCH64_INSN_SIZE_32,
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AARCH64_INSN_SIZE_64,
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};
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enum aarch64_insn_ldst_type {
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AARCH64_INSN_LDST_LOAD_REG_OFFSET,
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AARCH64_INSN_LDST_STORE_REG_OFFSET,
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AARCH64_INSN_LDST_LOAD_IMM_OFFSET,
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AARCH64_INSN_LDST_STORE_IMM_OFFSET,
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AARCH64_INSN_LDST_LOAD_PAIR_PRE_INDEX,
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AARCH64_INSN_LDST_STORE_PAIR_PRE_INDEX,
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AARCH64_INSN_LDST_LOAD_PAIR_POST_INDEX,
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AARCH64_INSN_LDST_STORE_PAIR_POST_INDEX,
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AARCH64_INSN_LDST_LOAD_EX,
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AARCH64_INSN_LDST_LOAD_ACQ_EX,
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AARCH64_INSN_LDST_STORE_EX,
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AARCH64_INSN_LDST_STORE_REL_EX,
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AARCH64_INSN_LDST_SIGNED_LOAD_IMM_OFFSET,
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AARCH64_INSN_LDST_SIGNED_LOAD_REG_OFFSET,
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};
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enum aarch64_insn_adsb_type {
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AARCH64_INSN_ADSB_ADD,
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AARCH64_INSN_ADSB_SUB,
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AARCH64_INSN_ADSB_ADD_SETFLAGS,
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AARCH64_INSN_ADSB_SUB_SETFLAGS
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};
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enum aarch64_insn_movewide_type {
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AARCH64_INSN_MOVEWIDE_ZERO,
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AARCH64_INSN_MOVEWIDE_KEEP,
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AARCH64_INSN_MOVEWIDE_INVERSE
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};
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enum aarch64_insn_bitfield_type {
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AARCH64_INSN_BITFIELD_MOVE,
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AARCH64_INSN_BITFIELD_MOVE_UNSIGNED,
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AARCH64_INSN_BITFIELD_MOVE_SIGNED
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};
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enum aarch64_insn_data1_type {
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AARCH64_INSN_DATA1_REVERSE_16,
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AARCH64_INSN_DATA1_REVERSE_32,
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AARCH64_INSN_DATA1_REVERSE_64,
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};
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enum aarch64_insn_data2_type {
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AARCH64_INSN_DATA2_UDIV,
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AARCH64_INSN_DATA2_SDIV,
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AARCH64_INSN_DATA2_LSLV,
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AARCH64_INSN_DATA2_LSRV,
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AARCH64_INSN_DATA2_ASRV,
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AARCH64_INSN_DATA2_RORV,
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};
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enum aarch64_insn_data3_type {
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AARCH64_INSN_DATA3_MADD,
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AARCH64_INSN_DATA3_MSUB,
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};
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enum aarch64_insn_logic_type {
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AARCH64_INSN_LOGIC_AND,
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AARCH64_INSN_LOGIC_BIC,
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AARCH64_INSN_LOGIC_ORR,
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AARCH64_INSN_LOGIC_ORN,
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AARCH64_INSN_LOGIC_EOR,
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AARCH64_INSN_LOGIC_EON,
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AARCH64_INSN_LOGIC_AND_SETFLAGS,
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AARCH64_INSN_LOGIC_BIC_SETFLAGS
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};
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enum aarch64_insn_prfm_type {
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AARCH64_INSN_PRFM_TYPE_PLD,
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AARCH64_INSN_PRFM_TYPE_PLI,
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AARCH64_INSN_PRFM_TYPE_PST,
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};
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enum aarch64_insn_prfm_target {
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AARCH64_INSN_PRFM_TARGET_L1,
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AARCH64_INSN_PRFM_TARGET_L2,
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AARCH64_INSN_PRFM_TARGET_L3,
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};
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enum aarch64_insn_prfm_policy {
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AARCH64_INSN_PRFM_POLICY_KEEP,
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AARCH64_INSN_PRFM_POLICY_STRM,
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};
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enum aarch64_insn_adr_type {
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AARCH64_INSN_ADR_TYPE_ADRP,
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AARCH64_INSN_ADR_TYPE_ADR,
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};
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enum aarch64_insn_mem_atomic_op {
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AARCH64_INSN_MEM_ATOMIC_ADD,
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AARCH64_INSN_MEM_ATOMIC_CLR,
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AARCH64_INSN_MEM_ATOMIC_EOR,
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AARCH64_INSN_MEM_ATOMIC_SET,
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AARCH64_INSN_MEM_ATOMIC_SWP,
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};
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enum aarch64_insn_mem_order_type {
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AARCH64_INSN_MEM_ORDER_NONE,
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AARCH64_INSN_MEM_ORDER_ACQ,
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AARCH64_INSN_MEM_ORDER_REL,
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AARCH64_INSN_MEM_ORDER_ACQREL,
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};
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enum aarch64_insn_mb_type {
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AARCH64_INSN_MB_SY,
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AARCH64_INSN_MB_ST,
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AARCH64_INSN_MB_LD,
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AARCH64_INSN_MB_ISH,
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AARCH64_INSN_MB_ISHST,
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AARCH64_INSN_MB_ISHLD,
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AARCH64_INSN_MB_NSH,
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AARCH64_INSN_MB_NSHST,
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AARCH64_INSN_MB_NSHLD,
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AARCH64_INSN_MB_OSH,
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AARCH64_INSN_MB_OSHST,
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AARCH64_INSN_MB_OSHLD,
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};
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#define __AARCH64_INSN_FUNCS(abbr, mask, val) \
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static __always_inline bool aarch64_insn_is_##abbr(u32 code) \
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{ \
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BUILD_BUG_ON(~(mask) & (val)); \
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return (code & (mask)) == (val); \
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} \
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static __always_inline u32 aarch64_insn_get_##abbr##_value(void) \
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{ \
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return (val); \
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}
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/*
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* ARM Architecture Reference Manual for ARMv8 Profile-A, Issue A.a
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* Section C3.1 "A64 instruction index by encoding":
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* AArch64 main encoding table
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* Bit position
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* 28 27 26 25 Encoding Group
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* 0 0 - - Unallocated
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* 1 0 0 - Data processing, immediate
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* 1 0 1 - Branch, exception generation and system instructions
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* - 1 - 0 Loads and stores
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* - 1 0 1 Data processing - register
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* 0 1 1 1 Data processing - SIMD and floating point
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* 1 1 1 1 Data processing - SIMD and floating point
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* "-" means "don't care"
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*/
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__AARCH64_INSN_FUNCS(class_branch_sys, 0x1c000000, 0x14000000)
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__AARCH64_INSN_FUNCS(adr, 0x9F000000, 0x10000000)
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__AARCH64_INSN_FUNCS(adrp, 0x9F000000, 0x90000000)
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__AARCH64_INSN_FUNCS(prfm, 0x3FC00000, 0x39800000)
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__AARCH64_INSN_FUNCS(prfm_lit, 0xFF000000, 0xD8000000)
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__AARCH64_INSN_FUNCS(store_imm, 0x3FC00000, 0x39000000)
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__AARCH64_INSN_FUNCS(load_imm, 0x3FC00000, 0x39400000)
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__AARCH64_INSN_FUNCS(signed_load_imm, 0X3FC00000, 0x39800000)
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__AARCH64_INSN_FUNCS(store_pre, 0x3FE00C00, 0x38000C00)
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__AARCH64_INSN_FUNCS(load_pre, 0x3FE00C00, 0x38400C00)
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__AARCH64_INSN_FUNCS(store_post, 0x3FE00C00, 0x38000400)
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__AARCH64_INSN_FUNCS(load_post, 0x3FE00C00, 0x38400400)
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__AARCH64_INSN_FUNCS(str_reg, 0x3FE0EC00, 0x38206800)
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__AARCH64_INSN_FUNCS(str_imm, 0x3FC00000, 0x39000000)
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__AARCH64_INSN_FUNCS(ldadd, 0x3F20FC00, 0x38200000)
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__AARCH64_INSN_FUNCS(ldclr, 0x3F20FC00, 0x38201000)
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__AARCH64_INSN_FUNCS(ldeor, 0x3F20FC00, 0x38202000)
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__AARCH64_INSN_FUNCS(ldset, 0x3F20FC00, 0x38203000)
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__AARCH64_INSN_FUNCS(swp, 0x3F20FC00, 0x38208000)
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__AARCH64_INSN_FUNCS(cas, 0x3FA07C00, 0x08A07C00)
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__AARCH64_INSN_FUNCS(ldr_reg, 0x3FE0EC00, 0x38606800)
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__AARCH64_INSN_FUNCS(signed_ldr_reg, 0X3FE0FC00, 0x38A0E800)
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__AARCH64_INSN_FUNCS(ldr_imm, 0x3FC00000, 0x39400000)
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__AARCH64_INSN_FUNCS(ldr_lit, 0xBF000000, 0x18000000)
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__AARCH64_INSN_FUNCS(ldrsw_lit, 0xFF000000, 0x98000000)
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__AARCH64_INSN_FUNCS(exclusive, 0x3F800000, 0x08000000)
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__AARCH64_INSN_FUNCS(load_ex, 0x3F400000, 0x08400000)
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__AARCH64_INSN_FUNCS(store_ex, 0x3F400000, 0x08000000)
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__AARCH64_INSN_FUNCS(stp, 0x7FC00000, 0x29000000)
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|
__AARCH64_INSN_FUNCS(ldp, 0x7FC00000, 0x29400000)
|
|
__AARCH64_INSN_FUNCS(stp_post, 0x7FC00000, 0x28800000)
|
|
__AARCH64_INSN_FUNCS(ldp_post, 0x7FC00000, 0x28C00000)
|
|
__AARCH64_INSN_FUNCS(stp_pre, 0x7FC00000, 0x29800000)
|
|
__AARCH64_INSN_FUNCS(ldp_pre, 0x7FC00000, 0x29C00000)
|
|
__AARCH64_INSN_FUNCS(add_imm, 0x7F000000, 0x11000000)
|
|
__AARCH64_INSN_FUNCS(adds_imm, 0x7F000000, 0x31000000)
|
|
__AARCH64_INSN_FUNCS(sub_imm, 0x7F000000, 0x51000000)
|
|
__AARCH64_INSN_FUNCS(subs_imm, 0x7F000000, 0x71000000)
|
|
__AARCH64_INSN_FUNCS(movn, 0x7F800000, 0x12800000)
|
|
__AARCH64_INSN_FUNCS(sbfm, 0x7F800000, 0x13000000)
|
|
__AARCH64_INSN_FUNCS(bfm, 0x7F800000, 0x33000000)
|
|
__AARCH64_INSN_FUNCS(movz, 0x7F800000, 0x52800000)
|
|
__AARCH64_INSN_FUNCS(ubfm, 0x7F800000, 0x53000000)
|
|
__AARCH64_INSN_FUNCS(movk, 0x7F800000, 0x72800000)
|
|
__AARCH64_INSN_FUNCS(add, 0x7F200000, 0x0B000000)
|
|
__AARCH64_INSN_FUNCS(adds, 0x7F200000, 0x2B000000)
|
|
__AARCH64_INSN_FUNCS(sub, 0x7F200000, 0x4B000000)
|
|
__AARCH64_INSN_FUNCS(subs, 0x7F200000, 0x6B000000)
|
|
__AARCH64_INSN_FUNCS(madd, 0x7FE08000, 0x1B000000)
|
|
__AARCH64_INSN_FUNCS(msub, 0x7FE08000, 0x1B008000)
|
|
__AARCH64_INSN_FUNCS(udiv, 0x7FE0FC00, 0x1AC00800)
|
|
__AARCH64_INSN_FUNCS(sdiv, 0x7FE0FC00, 0x1AC00C00)
|
|
__AARCH64_INSN_FUNCS(lslv, 0x7FE0FC00, 0x1AC02000)
|
|
__AARCH64_INSN_FUNCS(lsrv, 0x7FE0FC00, 0x1AC02400)
|
|
__AARCH64_INSN_FUNCS(asrv, 0x7FE0FC00, 0x1AC02800)
|
|
__AARCH64_INSN_FUNCS(rorv, 0x7FE0FC00, 0x1AC02C00)
|
|
__AARCH64_INSN_FUNCS(rev16, 0x7FFFFC00, 0x5AC00400)
|
|
__AARCH64_INSN_FUNCS(rev32, 0x7FFFFC00, 0x5AC00800)
|
|
__AARCH64_INSN_FUNCS(rev64, 0x7FFFFC00, 0x5AC00C00)
|
|
__AARCH64_INSN_FUNCS(and, 0x7F200000, 0x0A000000)
|
|
__AARCH64_INSN_FUNCS(bic, 0x7F200000, 0x0A200000)
|
|
__AARCH64_INSN_FUNCS(orr, 0x7F200000, 0x2A000000)
|
|
__AARCH64_INSN_FUNCS(mov_reg, 0x7FE0FFE0, 0x2A0003E0)
|
|
__AARCH64_INSN_FUNCS(orn, 0x7F200000, 0x2A200000)
|
|
__AARCH64_INSN_FUNCS(eor, 0x7F200000, 0x4A000000)
|
|
__AARCH64_INSN_FUNCS(eon, 0x7F200000, 0x4A200000)
|
|
__AARCH64_INSN_FUNCS(ands, 0x7F200000, 0x6A000000)
|
|
__AARCH64_INSN_FUNCS(bics, 0x7F200000, 0x6A200000)
|
|
__AARCH64_INSN_FUNCS(and_imm, 0x7F800000, 0x12000000)
|
|
__AARCH64_INSN_FUNCS(orr_imm, 0x7F800000, 0x32000000)
|
|
__AARCH64_INSN_FUNCS(eor_imm, 0x7F800000, 0x52000000)
|
|
__AARCH64_INSN_FUNCS(ands_imm, 0x7F800000, 0x72000000)
|
|
__AARCH64_INSN_FUNCS(extr, 0x7FA00000, 0x13800000)
|
|
__AARCH64_INSN_FUNCS(b, 0xFC000000, 0x14000000)
|
|
__AARCH64_INSN_FUNCS(bl, 0xFC000000, 0x94000000)
|
|
__AARCH64_INSN_FUNCS(cbz, 0x7F000000, 0x34000000)
|
|
__AARCH64_INSN_FUNCS(cbnz, 0x7F000000, 0x35000000)
|
|
__AARCH64_INSN_FUNCS(tbz, 0x7F000000, 0x36000000)
|
|
__AARCH64_INSN_FUNCS(tbnz, 0x7F000000, 0x37000000)
|
|
__AARCH64_INSN_FUNCS(bcond, 0xFF000010, 0x54000000)
|
|
__AARCH64_INSN_FUNCS(svc, 0xFFE0001F, 0xD4000001)
|
|
__AARCH64_INSN_FUNCS(hvc, 0xFFE0001F, 0xD4000002)
|
|
__AARCH64_INSN_FUNCS(smc, 0xFFE0001F, 0xD4000003)
|
|
__AARCH64_INSN_FUNCS(brk, 0xFFE0001F, 0xD4200000)
|
|
__AARCH64_INSN_FUNCS(exception, 0xFF000000, 0xD4000000)
|
|
__AARCH64_INSN_FUNCS(hint, 0xFFFFF01F, 0xD503201F)
|
|
__AARCH64_INSN_FUNCS(br, 0xFFFFFC1F, 0xD61F0000)
|
|
__AARCH64_INSN_FUNCS(br_auth, 0xFEFFF800, 0xD61F0800)
|
|
__AARCH64_INSN_FUNCS(blr, 0xFFFFFC1F, 0xD63F0000)
|
|
__AARCH64_INSN_FUNCS(blr_auth, 0xFEFFF800, 0xD63F0800)
|
|
__AARCH64_INSN_FUNCS(ret, 0xFFFFFC1F, 0xD65F0000)
|
|
__AARCH64_INSN_FUNCS(ret_auth, 0xFFFFFBFF, 0xD65F0BFF)
|
|
__AARCH64_INSN_FUNCS(eret, 0xFFFFFFFF, 0xD69F03E0)
|
|
__AARCH64_INSN_FUNCS(eret_auth, 0xFFFFFBFF, 0xD69F0BFF)
|
|
__AARCH64_INSN_FUNCS(mrs, 0xFFF00000, 0xD5300000)
|
|
__AARCH64_INSN_FUNCS(msr_imm, 0xFFF8F01F, 0xD500401F)
|
|
__AARCH64_INSN_FUNCS(msr_reg, 0xFFF00000, 0xD5100000)
|
|
__AARCH64_INSN_FUNCS(dmb, 0xFFFFF0FF, 0xD50330BF)
|
|
__AARCH64_INSN_FUNCS(dsb_base, 0xFFFFF0FF, 0xD503309F)
|
|
__AARCH64_INSN_FUNCS(dsb_nxs, 0xFFFFF3FF, 0xD503323F)
|
|
__AARCH64_INSN_FUNCS(isb, 0xFFFFF0FF, 0xD50330DF)
|
|
__AARCH64_INSN_FUNCS(sb, 0xFFFFFFFF, 0xD50330FF)
|
|
__AARCH64_INSN_FUNCS(clrex, 0xFFFFF0FF, 0xD503305F)
|
|
__AARCH64_INSN_FUNCS(ssbb, 0xFFFFFFFF, 0xD503309F)
|
|
__AARCH64_INSN_FUNCS(pssbb, 0xFFFFFFFF, 0xD503349F)
|
|
__AARCH64_INSN_FUNCS(bti, 0xFFFFFF3F, 0xD503241f)
|
|
|
|
#undef __AARCH64_INSN_FUNCS
|
|
|
|
static __always_inline bool aarch64_insn_is_steppable_hint(u32 insn)
|
|
{
|
|
if (!aarch64_insn_is_hint(insn))
|
|
return false;
|
|
|
|
switch (insn & 0xFE0) {
|
|
case AARCH64_INSN_HINT_XPACLRI:
|
|
case AARCH64_INSN_HINT_PACIA_1716:
|
|
case AARCH64_INSN_HINT_PACIB_1716:
|
|
case AARCH64_INSN_HINT_PACIAZ:
|
|
case AARCH64_INSN_HINT_PACIASP:
|
|
case AARCH64_INSN_HINT_PACIBZ:
|
|
case AARCH64_INSN_HINT_PACIBSP:
|
|
case AARCH64_INSN_HINT_BTI:
|
|
case AARCH64_INSN_HINT_BTIC:
|
|
case AARCH64_INSN_HINT_BTIJ:
|
|
case AARCH64_INSN_HINT_BTIJC:
|
|
case AARCH64_INSN_HINT_NOP:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static __always_inline bool aarch64_insn_is_branch(u32 insn)
|
|
{
|
|
/* b, bl, cb*, tb*, ret*, b.cond, br*, blr* */
|
|
|
|
return aarch64_insn_is_b(insn) ||
|
|
aarch64_insn_is_bl(insn) ||
|
|
aarch64_insn_is_cbz(insn) ||
|
|
aarch64_insn_is_cbnz(insn) ||
|
|
aarch64_insn_is_tbz(insn) ||
|
|
aarch64_insn_is_tbnz(insn) ||
|
|
aarch64_insn_is_ret(insn) ||
|
|
aarch64_insn_is_ret_auth(insn) ||
|
|
aarch64_insn_is_br(insn) ||
|
|
aarch64_insn_is_br_auth(insn) ||
|
|
aarch64_insn_is_blr(insn) ||
|
|
aarch64_insn_is_blr_auth(insn) ||
|
|
aarch64_insn_is_bcond(insn);
|
|
}
|
|
|
|
static __always_inline bool aarch64_insn_is_branch_imm(u32 insn)
|
|
{
|
|
return aarch64_insn_is_b(insn) ||
|
|
aarch64_insn_is_bl(insn) ||
|
|
aarch64_insn_is_tbz(insn) ||
|
|
aarch64_insn_is_tbnz(insn) ||
|
|
aarch64_insn_is_cbz(insn) ||
|
|
aarch64_insn_is_cbnz(insn) ||
|
|
aarch64_insn_is_bcond(insn);
|
|
}
|
|
|
|
static __always_inline bool aarch64_insn_is_adr_adrp(u32 insn)
|
|
{
|
|
return aarch64_insn_is_adr(insn) ||
|
|
aarch64_insn_is_adrp(insn);
|
|
}
|
|
|
|
static __always_inline bool aarch64_insn_is_dsb(u32 insn)
|
|
{
|
|
return aarch64_insn_is_dsb_base(insn) ||
|
|
aarch64_insn_is_dsb_nxs(insn);
|
|
}
|
|
|
|
static __always_inline bool aarch64_insn_is_barrier(u32 insn)
|
|
{
|
|
return aarch64_insn_is_dmb(insn) ||
|
|
aarch64_insn_is_dsb(insn) ||
|
|
aarch64_insn_is_isb(insn) ||
|
|
aarch64_insn_is_sb(insn) ||
|
|
aarch64_insn_is_clrex(insn) ||
|
|
aarch64_insn_is_ssbb(insn) ||
|
|
aarch64_insn_is_pssbb(insn);
|
|
}
|
|
|
|
static __always_inline bool aarch64_insn_is_store_single(u32 insn)
|
|
{
|
|
return aarch64_insn_is_store_imm(insn) ||
|
|
aarch64_insn_is_store_pre(insn) ||
|
|
aarch64_insn_is_store_post(insn);
|
|
}
|
|
|
|
static __always_inline bool aarch64_insn_is_store_pair(u32 insn)
|
|
{
|
|
return aarch64_insn_is_stp(insn) ||
|
|
aarch64_insn_is_stp_pre(insn) ||
|
|
aarch64_insn_is_stp_post(insn);
|
|
}
|
|
|
|
static __always_inline bool aarch64_insn_is_load_single(u32 insn)
|
|
{
|
|
return aarch64_insn_is_load_imm(insn) ||
|
|
aarch64_insn_is_load_pre(insn) ||
|
|
aarch64_insn_is_load_post(insn);
|
|
}
|
|
|
|
static __always_inline bool aarch64_insn_is_load_pair(u32 insn)
|
|
{
|
|
return aarch64_insn_is_ldp(insn) ||
|
|
aarch64_insn_is_ldp_pre(insn) ||
|
|
aarch64_insn_is_ldp_post(insn);
|
|
}
|
|
|
|
static __always_inline bool aarch64_insn_uses_literal(u32 insn)
|
|
{
|
|
/* ldr/ldrsw (literal), prfm */
|
|
|
|
return aarch64_insn_is_ldr_lit(insn) ||
|
|
aarch64_insn_is_ldrsw_lit(insn) ||
|
|
aarch64_insn_is_adr_adrp(insn) ||
|
|
aarch64_insn_is_prfm_lit(insn);
|
|
}
|
|
|
|
enum aarch64_insn_encoding_class aarch64_get_insn_class(u32 insn);
|
|
u64 aarch64_insn_decode_immediate(enum aarch64_insn_imm_type type, u32 insn);
|
|
u32 aarch64_insn_encode_immediate(enum aarch64_insn_imm_type type,
|
|
u32 insn, u64 imm);
|
|
u32 aarch64_insn_decode_register(enum aarch64_insn_register_type type,
|
|
u32 insn);
|
|
u32 aarch64_insn_gen_branch_imm(unsigned long pc, unsigned long addr,
|
|
enum aarch64_insn_branch_type type);
|
|
u32 aarch64_insn_gen_comp_branch_imm(unsigned long pc, unsigned long addr,
|
|
enum aarch64_insn_register reg,
|
|
enum aarch64_insn_variant variant,
|
|
enum aarch64_insn_branch_type type);
|
|
u32 aarch64_insn_gen_cond_branch_imm(unsigned long pc, unsigned long addr,
|
|
enum aarch64_insn_condition cond);
|
|
|
|
static __always_inline u32
|
|
aarch64_insn_gen_hint(enum aarch64_insn_hint_cr_op op)
|
|
{
|
|
return aarch64_insn_get_hint_value() | op;
|
|
}
|
|
|
|
static __always_inline u32 aarch64_insn_gen_nop(void)
|
|
{
|
|
return aarch64_insn_gen_hint(AARCH64_INSN_HINT_NOP);
|
|
}
|
|
|
|
u32 aarch64_insn_gen_branch_reg(enum aarch64_insn_register reg,
|
|
enum aarch64_insn_branch_type type);
|
|
u32 aarch64_insn_gen_load_store_reg(enum aarch64_insn_register reg,
|
|
enum aarch64_insn_register base,
|
|
enum aarch64_insn_register offset,
|
|
enum aarch64_insn_size_type size,
|
|
enum aarch64_insn_ldst_type type);
|
|
u32 aarch64_insn_gen_load_store_imm(enum aarch64_insn_register reg,
|
|
enum aarch64_insn_register base,
|
|
unsigned int imm,
|
|
enum aarch64_insn_size_type size,
|
|
enum aarch64_insn_ldst_type type);
|
|
u32 aarch64_insn_gen_load_literal(unsigned long pc, unsigned long addr,
|
|
enum aarch64_insn_register reg,
|
|
bool is64bit);
|
|
u32 aarch64_insn_gen_load_store_pair(enum aarch64_insn_register reg1,
|
|
enum aarch64_insn_register reg2,
|
|
enum aarch64_insn_register base,
|
|
int offset,
|
|
enum aarch64_insn_variant variant,
|
|
enum aarch64_insn_ldst_type type);
|
|
u32 aarch64_insn_gen_load_store_ex(enum aarch64_insn_register reg,
|
|
enum aarch64_insn_register base,
|
|
enum aarch64_insn_register state,
|
|
enum aarch64_insn_size_type size,
|
|
enum aarch64_insn_ldst_type type);
|
|
u32 aarch64_insn_gen_add_sub_imm(enum aarch64_insn_register dst,
|
|
enum aarch64_insn_register src,
|
|
int imm, enum aarch64_insn_variant variant,
|
|
enum aarch64_insn_adsb_type type);
|
|
u32 aarch64_insn_gen_adr(unsigned long pc, unsigned long addr,
|
|
enum aarch64_insn_register reg,
|
|
enum aarch64_insn_adr_type type);
|
|
u32 aarch64_insn_gen_bitfield(enum aarch64_insn_register dst,
|
|
enum aarch64_insn_register src,
|
|
int immr, int imms,
|
|
enum aarch64_insn_variant variant,
|
|
enum aarch64_insn_bitfield_type type);
|
|
u32 aarch64_insn_gen_movewide(enum aarch64_insn_register dst,
|
|
int imm, int shift,
|
|
enum aarch64_insn_variant variant,
|
|
enum aarch64_insn_movewide_type type);
|
|
u32 aarch64_insn_gen_add_sub_shifted_reg(enum aarch64_insn_register dst,
|
|
enum aarch64_insn_register src,
|
|
enum aarch64_insn_register reg,
|
|
int shift,
|
|
enum aarch64_insn_variant variant,
|
|
enum aarch64_insn_adsb_type type);
|
|
u32 aarch64_insn_gen_data1(enum aarch64_insn_register dst,
|
|
enum aarch64_insn_register src,
|
|
enum aarch64_insn_variant variant,
|
|
enum aarch64_insn_data1_type type);
|
|
u32 aarch64_insn_gen_data2(enum aarch64_insn_register dst,
|
|
enum aarch64_insn_register src,
|
|
enum aarch64_insn_register reg,
|
|
enum aarch64_insn_variant variant,
|
|
enum aarch64_insn_data2_type type);
|
|
u32 aarch64_insn_gen_data3(enum aarch64_insn_register dst,
|
|
enum aarch64_insn_register src,
|
|
enum aarch64_insn_register reg1,
|
|
enum aarch64_insn_register reg2,
|
|
enum aarch64_insn_variant variant,
|
|
enum aarch64_insn_data3_type type);
|
|
u32 aarch64_insn_gen_logical_shifted_reg(enum aarch64_insn_register dst,
|
|
enum aarch64_insn_register src,
|
|
enum aarch64_insn_register reg,
|
|
int shift,
|
|
enum aarch64_insn_variant variant,
|
|
enum aarch64_insn_logic_type type);
|
|
u32 aarch64_insn_gen_move_reg(enum aarch64_insn_register dst,
|
|
enum aarch64_insn_register src,
|
|
enum aarch64_insn_variant variant);
|
|
u32 aarch64_insn_gen_logical_immediate(enum aarch64_insn_logic_type type,
|
|
enum aarch64_insn_variant variant,
|
|
enum aarch64_insn_register Rn,
|
|
enum aarch64_insn_register Rd,
|
|
u64 imm);
|
|
u32 aarch64_insn_gen_extr(enum aarch64_insn_variant variant,
|
|
enum aarch64_insn_register Rm,
|
|
enum aarch64_insn_register Rn,
|
|
enum aarch64_insn_register Rd,
|
|
u8 lsb);
|
|
#ifdef CONFIG_ARM64_LSE_ATOMICS
|
|
u32 aarch64_insn_gen_atomic_ld_op(enum aarch64_insn_register result,
|
|
enum aarch64_insn_register address,
|
|
enum aarch64_insn_register value,
|
|
enum aarch64_insn_size_type size,
|
|
enum aarch64_insn_mem_atomic_op op,
|
|
enum aarch64_insn_mem_order_type order);
|
|
u32 aarch64_insn_gen_cas(enum aarch64_insn_register result,
|
|
enum aarch64_insn_register address,
|
|
enum aarch64_insn_register value,
|
|
enum aarch64_insn_size_type size,
|
|
enum aarch64_insn_mem_order_type order);
|
|
#else
|
|
static inline
|
|
u32 aarch64_insn_gen_atomic_ld_op(enum aarch64_insn_register result,
|
|
enum aarch64_insn_register address,
|
|
enum aarch64_insn_register value,
|
|
enum aarch64_insn_size_type size,
|
|
enum aarch64_insn_mem_atomic_op op,
|
|
enum aarch64_insn_mem_order_type order)
|
|
{
|
|
return AARCH64_BREAK_FAULT;
|
|
}
|
|
|
|
static inline
|
|
u32 aarch64_insn_gen_cas(enum aarch64_insn_register result,
|
|
enum aarch64_insn_register address,
|
|
enum aarch64_insn_register value,
|
|
enum aarch64_insn_size_type size,
|
|
enum aarch64_insn_mem_order_type order)
|
|
{
|
|
return AARCH64_BREAK_FAULT;
|
|
}
|
|
#endif
|
|
u32 aarch64_insn_gen_dmb(enum aarch64_insn_mb_type type);
|
|
|
|
s32 aarch64_get_branch_offset(u32 insn);
|
|
u32 aarch64_set_branch_offset(u32 insn, s32 offset);
|
|
|
|
s32 aarch64_insn_adrp_get_offset(u32 insn);
|
|
u32 aarch64_insn_adrp_set_offset(u32 insn, s32 offset);
|
|
|
|
bool aarch32_insn_is_wide(u32 insn);
|
|
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#define A32_RN_OFFSET 16
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#define A32_RT_OFFSET 12
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#define A32_RT2_OFFSET 0
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u32 aarch64_insn_extract_system_reg(u32 insn);
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u32 aarch32_insn_extract_reg_num(u32 insn, int offset);
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u32 aarch32_insn_mcr_extract_opc2(u32 insn);
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u32 aarch32_insn_mcr_extract_crm(u32 insn);
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typedef bool (pstate_check_t)(unsigned long);
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extern pstate_check_t * const aarch32_opcode_cond_checks[16];
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#endif /* __ASSEMBLY__ */
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#endif /* __ASM_INSN_H */
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