/*---------------------------------------------------------------*/
/*--- begin host_arm_defs.h ---*/
/*---------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2004-2015 OpenWorks LLP
info@open-works.net
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 the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
The GNU General Public License is contained in the file COPYING.
*/
#ifndef __VEX_HOST_ARM_DEFS_H
#define __VEX_HOST_ARM_DEFS_H
#include "libvex_basictypes.h"
#include "libvex.h" // VexArch
#include "host_generic_regs.h" // HReg
extern UInt arm_hwcaps;
/* --------- Registers. --------- */
#define ST_IN static inline
ST_IN HReg hregARM_R4 ( void ) { return mkHReg(False, HRcInt32, 4, 0); }
ST_IN HReg hregARM_R5 ( void ) { return mkHReg(False, HRcInt32, 5, 1); }
ST_IN HReg hregARM_R6 ( void ) { return mkHReg(False, HRcInt32, 6, 2); }
ST_IN HReg hregARM_R7 ( void ) { return mkHReg(False, HRcInt32, 7, 3); }
ST_IN HReg hregARM_R10 ( void ) { return mkHReg(False, HRcInt32, 10, 4); }
ST_IN HReg hregARM_R11 ( void ) { return mkHReg(False, HRcInt32, 11, 5); }
ST_IN HReg hregARM_R0 ( void ) { return mkHReg(False, HRcInt32, 0, 6); }
ST_IN HReg hregARM_R1 ( void ) { return mkHReg(False, HRcInt32, 1, 7); }
ST_IN HReg hregARM_R2 ( void ) { return mkHReg(False, HRcInt32, 2, 8); }
ST_IN HReg hregARM_R3 ( void ) { return mkHReg(False, HRcInt32, 3, 9); }
ST_IN HReg hregARM_R9 ( void ) { return mkHReg(False, HRcInt32, 9, 10); }
ST_IN HReg hregARM_D8 ( void ) { return mkHReg(False, HRcFlt64, 8, 11); }
ST_IN HReg hregARM_D9 ( void ) { return mkHReg(False, HRcFlt64, 9, 12); }
ST_IN HReg hregARM_D10 ( void ) { return mkHReg(False, HRcFlt64, 10, 13); }
ST_IN HReg hregARM_D11 ( void ) { return mkHReg(False, HRcFlt64, 11, 14); }
ST_IN HReg hregARM_D12 ( void ) { return mkHReg(False, HRcFlt64, 12, 15); }
ST_IN HReg hregARM_S26 ( void ) { return mkHReg(False, HRcFlt32, 26, 16); }
ST_IN HReg hregARM_S27 ( void ) { return mkHReg(False, HRcFlt32, 27, 17); }
ST_IN HReg hregARM_S28 ( void ) { return mkHReg(False, HRcFlt32, 28, 18); }
ST_IN HReg hregARM_S29 ( void ) { return mkHReg(False, HRcFlt32, 29, 19); }
ST_IN HReg hregARM_S30 ( void ) { return mkHReg(False, HRcFlt32, 30, 20); }
ST_IN HReg hregARM_Q8 ( void ) { return mkHReg(False, HRcVec128, 8, 21); }
ST_IN HReg hregARM_Q9 ( void ) { return mkHReg(False, HRcVec128, 9, 22); }
ST_IN HReg hregARM_Q10 ( void ) { return mkHReg(False, HRcVec128, 10, 23); }
ST_IN HReg hregARM_Q11 ( void ) { return mkHReg(False, HRcVec128, 11, 24); }
ST_IN HReg hregARM_Q12 ( void ) { return mkHReg(False, HRcVec128, 12, 25); }
ST_IN HReg hregARM_R8 ( void ) { return mkHReg(False, HRcInt32, 8, 26); }
ST_IN HReg hregARM_R12 ( void ) { return mkHReg(False, HRcInt32, 12, 27); }
ST_IN HReg hregARM_R13 ( void ) { return mkHReg(False, HRcInt32, 13, 28); }
ST_IN HReg hregARM_R14 ( void ) { return mkHReg(False, HRcInt32, 14, 29); }
ST_IN HReg hregARM_R15 ( void ) { return mkHReg(False, HRcInt32, 15, 30); }
ST_IN HReg hregARM_Q13 ( void ) { return mkHReg(False, HRcVec128, 13, 31); }
ST_IN HReg hregARM_Q14 ( void ) { return mkHReg(False, HRcVec128, 14, 32); }
ST_IN HReg hregARM_Q15 ( void ) { return mkHReg(False, HRcVec128, 15, 33); }
#undef ST_IN
extern void ppHRegARM ( HReg );
/* Number of registers used arg passing in function calls */
#define ARM_N_ARGREGS 4 /* r0, r1, r2, r3 */
/* --------- Condition codes. --------- */
typedef
enum {
ARMcc_EQ = 0, /* equal : Z=1 */
ARMcc_NE = 1, /* not equal : Z=0 */
ARMcc_HS = 2, /* >=u (higher or same) : C=1 */
ARMcc_LO = 3, /* <u (lower) : C=0 */
ARMcc_MI = 4, /* minus (negative) : N=1 */
ARMcc_PL = 5, /* plus (zero or +ve) : N=0 */
ARMcc_VS = 6, /* overflow : V=1 */
ARMcc_VC = 7, /* no overflow : V=0 */
ARMcc_HI = 8, /* >u (higher) : C=1 && Z=0 */
ARMcc_LS = 9, /* <=u (lower or same) : C=0 || Z=1 */
ARMcc_GE = 10, /* >=s (signed greater or equal) : N=V */
ARMcc_LT = 11, /* <s (signed less than) : N!=V */
ARMcc_GT = 12, /* >s (signed greater) : Z=0 && N=V */
ARMcc_LE = 13, /* <=s (signed less or equal) : Z=1 || N!=V */
ARMcc_AL = 14, /* always (unconditional) */
ARMcc_NV = 15 /* never (basically undefined meaning), deprecated */
}
ARMCondCode;
extern const HChar* showARMCondCode ( ARMCondCode );
/* --------- Memory address expressions (amodes). --------- */
/* --- Addressing Mode 1 --- */
typedef
enum {
ARMam1_RI=1, /* reg +/- imm12 */
ARMam1_RRS /* reg1 + (reg2 << 0, 1 2 or 3) */
}
ARMAMode1Tag;
typedef
struct {
ARMAMode1Tag tag;
union {
struct {
HReg reg;
Int simm13; /* -4095 .. +4095 */
} RI;
struct {
HReg base;
HReg index;
UInt shift; /* 0, 1 2 or 3 */
} RRS;
} ARMam1;
}
ARMAMode1;
extern ARMAMode1* ARMAMode1_RI ( HReg reg, Int simm13 );
extern ARMAMode1* ARMAMode1_RRS ( HReg base, HReg index, UInt shift );
extern void ppARMAMode1 ( ARMAMode1* );
/* --- Addressing Mode 2 --- */
typedef
enum {
ARMam2_RI=3, /* reg +/- imm8 */
ARMam2_RR /* reg1 + reg2 */
}
ARMAMode2Tag;
typedef
struct {
ARMAMode2Tag tag;
union {
struct {
HReg reg;
Int simm9; /* -255 .. 255 */
} RI;
struct {
HReg base;
HReg index;
} RR;
} ARMam2;
}
ARMAMode2;
extern ARMAMode2* ARMAMode2_RI ( HReg reg, Int simm9 );
extern ARMAMode2* ARMAMode2_RR ( HReg base, HReg index );
extern void ppARMAMode2 ( ARMAMode2* );
/* --- Addressing Mode suitable for VFP --- */
/* The simm11 is encoded as 8 bits + 1 sign bit,
so can only be 0 % 4. */
typedef
struct {
HReg reg;
Int simm11; /* -1020, -1016 .. 1016, 1020 */
}
ARMAModeV;
extern ARMAModeV* mkARMAModeV ( HReg reg, Int simm11 );
extern void ppARMAModeV ( ARMAModeV* );
/* --- Addressing Mode suitable for Neon --- */
typedef
enum {
ARMamN_R=5,
ARMamN_RR
/* ... */
}
ARMAModeNTag;
typedef
struct {
ARMAModeNTag tag;
union {
struct {
HReg rN;
HReg rM;
} RR;
struct {
HReg rN;
} R;
/* ... */
} ARMamN;
}
ARMAModeN;
extern ARMAModeN* mkARMAModeN_RR ( HReg, HReg );
extern ARMAModeN* mkARMAModeN_R ( HReg );
extern void ppARMAModeN ( ARMAModeN* );
/* --------- Reg or imm-8x4 operands --------- */
/* a.k.a (a very restricted form of) Shifter Operand,
in the ARM parlance. */
typedef
enum {
ARMri84_I84=7, /* imm8 `ror` (2 * imm4) */
ARMri84_R /* reg */
}
ARMRI84Tag;
typedef
struct {
ARMRI84Tag tag;
union {
struct {
UShort imm8;
UShort imm4;
} I84;
struct {
HReg reg;
} R;
} ARMri84;
}
ARMRI84;
extern ARMRI84* ARMRI84_I84 ( UShort imm8, UShort imm4 );
extern ARMRI84* ARMRI84_R ( HReg );
extern void ppARMRI84 ( ARMRI84* );
/* --------- Reg or imm5 operands --------- */
typedef
enum {
ARMri5_I5=9, /* imm5, 1 .. 31 only (no zero!) */
ARMri5_R /* reg */
}
ARMRI5Tag;
typedef
struct {
ARMRI5Tag tag;
union {
struct {
UInt imm5;
} I5;
struct {
HReg reg;
} R;
} ARMri5;
}
ARMRI5;
extern ARMRI5* ARMRI5_I5 ( UInt imm5 );
extern ARMRI5* ARMRI5_R ( HReg );
extern void ppARMRI5 ( ARMRI5* );
/* -------- Neon Immediate operand -------- */
/* imm8 = abcdefgh, B = NOT(b);
type | value (64bit binary)
-----+-------------------------------------------------------------------------
0 | 00000000 00000000 00000000 abcdefgh 00000000 00000000 00000000 abcdefgh
1 | 00000000 00000000 abcdefgh 00000000 00000000 00000000 abcdefgh 00000000
2 | 00000000 abcdefgh 00000000 00000000 00000000 abcdefgh 00000000 00000000
3 | abcdefgh 00000000 00000000 00000000 abcdefgh 00000000 00000000 00000000
4 | 00000000 abcdefgh 00000000 abcdefgh 00000000 abcdefgh 00000000 abcdefgh
5 | abcdefgh 00000000 abcdefgh 00000000 abcdefgh 00000000 abcdefgh 00000000
6 | abcdefgh abcdefgh abcdefgh abcdefgh abcdefgh abcdefgh abcdefgh abcdefgh
7 | 00000000 00000000 abcdefgh 11111111 00000000 00000000 abcdefgh 11111111
8 | 00000000 abcdefgh 11111111 11111111 00000000 abcdefgh 11111111 11111111
9 | aaaaaaaa bbbbbbbb cccccccc dddddddd eeeeeeee ffffffff gggggggg hhhhhhhh
10 | aBbbbbbc defgh000 00000000 00000000 aBbbbbbc defgh000 00000000 00000000
-----+-------------------------------------------------------------------------
Type 10 is:
(-1)^S * 2^exp * mantissa
where S = a, exp = UInt(B:c:d) - 3, mantissa = (16 + UInt(e:f:g:h)) / 16
*/
typedef
struct {
UInt type;
UInt imm8;
}
ARMNImm;
extern ARMNImm* ARMNImm_TI ( UInt type, UInt imm8 );
extern ULong ARMNImm_to_Imm64 ( ARMNImm* );
extern ARMNImm* Imm64_to_ARMNImm ( ULong );
extern void ppARMNImm ( ARMNImm* );
/* ------ Neon Register or Scalar Operand ------ */
typedef
enum {
ARMNRS_Reg=11,
ARMNRS_Scalar
}
ARMNRS_tag;
typedef
struct {
ARMNRS_tag tag;
HReg reg;
UInt index;
}
ARMNRS;
extern ARMNRS* mkARMNRS(ARMNRS_tag, HReg reg, UInt index);
extern void ppARMNRS ( ARMNRS* );
/* --------- Instructions. --------- */
/* --------- */
typedef
enum {
ARMalu_ADD=20, /* plain 32-bit add */
ARMalu_ADDS, /* 32-bit add, and set the flags */
ARMalu_ADC, /* 32-bit add with carry */
ARMalu_SUB, /* plain 32-bit subtract */
ARMalu_SUBS, /* 32-bit subtract, and set the flags */
ARMalu_SBC, /* 32-bit subtract with carry */
ARMalu_AND,
ARMalu_BIC,
ARMalu_OR,
ARMalu_XOR
}
ARMAluOp;
extern const HChar* showARMAluOp ( ARMAluOp op );
typedef
enum {
ARMsh_SHL=40,
ARMsh_SHR,
ARMsh_SAR
}
ARMShiftOp;
extern const HChar* showARMShiftOp ( ARMShiftOp op );
typedef
enum {
ARMun_NEG=50,
ARMun_NOT,
ARMun_CLZ
}
ARMUnaryOp;
extern const HChar* showARMUnaryOp ( ARMUnaryOp op );
typedef
enum {
ARMmul_PLAIN=60,
ARMmul_ZX,
ARMmul_SX
}
ARMMulOp;
extern const HChar* showARMMulOp ( ARMMulOp op );
typedef
enum {
ARMvfp_ADD=70,
ARMvfp_SUB,
ARMvfp_MUL,
ARMvfp_DIV
}
ARMVfpOp;
extern const HChar* showARMVfpOp ( ARMVfpOp op );
typedef
enum {
ARMvfpu_COPY=80,
ARMvfpu_NEG,
ARMvfpu_ABS,
ARMvfpu_SQRT
}
ARMVfpUnaryOp;
extern const HChar* showARMVfpUnaryOp ( ARMVfpUnaryOp op );
typedef
enum {
ARMneon_VAND=90,
ARMneon_VORR,
ARMneon_VXOR,
ARMneon_VADD,
ARMneon_VADDFP,
ARMneon_VRHADDS,
ARMneon_VRHADDU,
ARMneon_VPADDFP,
ARMneon_VABDFP,
ARMneon_VSUB,
ARMneon_VSUBFP,
ARMneon_VMAXU,
ARMneon_VMAXS,
ARMneon_VMAXF,
ARMneon_VMINU,
ARMneon_VMINS,
ARMneon_VMINF,
ARMneon_VQADDU,
ARMneon_VQADDS,
ARMneon_VQSUBU,
ARMneon_VQSUBS,
ARMneon_VCGTU,
ARMneon_VCGTS,
ARMneon_VCGEU,
ARMneon_VCGES,
ARMneon_VCGTF,
ARMneon_VCGEF,
ARMneon_VCEQ,
ARMneon_VCEQF,
ARMneon_VEXT,
ARMneon_VMUL,
ARMneon_VMULFP,
ARMneon_VMULLU,
ARMneon_VMULLS,
ARMneon_VMULP,
ARMneon_VMULLP,
ARMneon_VQDMULH,
ARMneon_VQRDMULH,
ARMneon_VPADD,
ARMneon_VPMINU,
ARMneon_VPMINS,
ARMneon_VPMINF,
ARMneon_VPMAXU,
ARMneon_VPMAXS,
ARMneon_VPMAXF,
ARMneon_VTBL,
ARMneon_VQDMULL,
ARMneon_VRECPS,
ARMneon_VRSQRTS,
ARMneon_INVALID
/* ... */
}
ARMNeonBinOp;
typedef
enum {
ARMneon_VSHL=150,
ARMneon_VSAL, /* Yah, not SAR but SAL */
ARMneon_VQSHL,
ARMneon_VQSAL
}
ARMNeonShiftOp;
typedef
enum {
ARMneon_COPY=160,
ARMneon_COPYLU,
ARMneon_COPYLS,
ARMneon_COPYN,
ARMneon_COPYQNSS,
ARMneon_COPYQNUS,
ARMneon_COPYQNUU,
ARMneon_NOT,
ARMneon_EQZ,
ARMneon_DUP,
ARMneon_PADDLS,
ARMneon_PADDLU,
ARMneon_CNT,
ARMneon_CLZ,
ARMneon_CLS,
ARMneon_VCVTxFPxINT,
ARMneon_VQSHLNSS,
ARMneon_VQSHLNUU,
ARMneon_VQSHLNUS,
ARMneon_VCVTFtoU,
ARMneon_VCVTFtoS,
ARMneon_VCVTUtoF,
ARMneon_VCVTStoF,
ARMneon_VCVTFtoFixedU,
ARMneon_VCVTFtoFixedS,
ARMneon_VCVTFixedUtoF,
ARMneon_VCVTFixedStoF,
ARMneon_VCVTF16toF32,
ARMneon_VCVTF32toF16,
ARMneon_REV16,
ARMneon_REV32,
ARMneon_REV64,
ARMneon_ABS,
ARMneon_VNEGF,
ARMneon_VRECIP,
ARMneon_VRECIPF,
ARMneon_VABSFP,
ARMneon_VRSQRTEFP,
ARMneon_VRSQRTE
/* ... */
}
ARMNeonUnOp;
typedef
enum {
ARMneon_SETELEM=200,
ARMneon_GETELEMU,
ARMneon_GETELEMS,
ARMneon_VDUP,
}
ARMNeonUnOpS;
typedef
enum {
ARMneon_TRN=210,
ARMneon_ZIP,
ARMneon_UZP
/* ... */
}
ARMNeonDualOp;
extern const HChar* showARMNeonBinOp ( ARMNeonBinOp op );
extern const HChar* showARMNeonUnOp ( ARMNeonUnOp op );
extern const HChar* showARMNeonUnOpS ( ARMNeonUnOpS op );
extern const HChar* showARMNeonShiftOp ( ARMNeonShiftOp op );
extern const HChar* showARMNeonDualOp ( ARMNeonDualOp op );
extern const HChar* showARMNeonBinOpDataType ( ARMNeonBinOp op );
extern const HChar* showARMNeonUnOpDataType ( ARMNeonUnOp op );
extern const HChar* showARMNeonUnOpSDataType ( ARMNeonUnOpS op );
extern const HChar* showARMNeonShiftOpDataType ( ARMNeonShiftOp op );
extern const HChar* showARMNeonDualOpDataType ( ARMNeonDualOp op );
typedef
enum {
/* baseline */
ARMin_Alu=220,
ARMin_Shift,
ARMin_Unary,
ARMin_CmpOrTst,
ARMin_Mov,
ARMin_Imm32,
ARMin_LdSt32,
ARMin_LdSt16,
ARMin_LdSt8U,
ARMin_Ld8S,
ARMin_XDirect, /* direct transfer to GA */
ARMin_XIndir, /* indirect transfer to GA */
ARMin_XAssisted, /* assisted transfer to GA */
ARMin_CMov,
ARMin_Call,
ARMin_Mul,
ARMin_LdrEX,
ARMin_StrEX,
/* vfp */
ARMin_VLdStD,
ARMin_VLdStS,
ARMin_VAluD,
ARMin_VAluS,
ARMin_VUnaryD,
ARMin_VUnaryS,
ARMin_VCmpD,
ARMin_VCMovD,
ARMin_VCMovS,
ARMin_VCvtSD,
ARMin_VXferD,
ARMin_VXferS,
ARMin_VCvtID,
ARMin_FPSCR,
ARMin_MFence,
ARMin_CLREX,
/* Neon */
ARMin_NLdStQ,
ARMin_NLdStD,
ARMin_NUnary,
ARMin_NUnaryS,
ARMin_NDual,
ARMin_NBinary,
ARMin_NBinaryS,
ARMin_NShift,
ARMin_NShl64, // special case 64-bit shift of Dreg by immediate
ARMin_NeonImm,
ARMin_NCMovQ,
/* This is not a NEON instruction. Actually there is no corresponding
instruction in ARM instruction set at all. We need this one to
generate spill/reload of 128-bit registers since current register
allocator demands them to consist of no more than two instructions.
We will split this instruction into 2 or 3 ARM instructions on the
emiting phase.
NOTE: source and destination registers should be different! */
ARMin_Add32,
ARMin_EvCheck, /* Event check */
ARMin_ProfInc /* 64-bit profile counter increment */
}
ARMInstrTag;
/* Destinations are on the LEFT (first operand) */
typedef
struct {
ARMInstrTag tag;
union {
/* ADD/SUB/AND/OR/XOR, vanilla ALU op */
struct {
ARMAluOp op;
HReg dst;
HReg argL;
ARMRI84* argR;
} Alu;
/* SHL/SHR/SAR, 2nd arg is reg or imm */
struct {
ARMShiftOp op;
HReg dst;
HReg argL;
ARMRI5* argR;
} Shift;
/* NOT/NEG/CLZ */
struct {
ARMUnaryOp op;
HReg dst;
HReg src;
} Unary;
/* CMP/TST; subtract/and, discard result, set NZCV */
struct {
Bool isCmp;
HReg argL;
ARMRI84* argR;
} CmpOrTst;
/* MOV dst, src -- reg-reg (or reg-imm8x4) move */
struct {
HReg dst;
ARMRI84* src;
} Mov;
/* Pseudo-insn; make a 32-bit immediate */
struct {
HReg dst;
UInt imm32;
} Imm32;
/* 32-bit load or store, may be conditional */
struct {
ARMCondCode cc; /* ARMcc_NV is not allowed */
Bool isLoad;
HReg rD;
ARMAMode1* amode;
} LdSt32;
/* 16-bit load or store, may be conditional */
struct {
ARMCondCode cc; /* ARMcc_NV is not allowed */
Bool isLoad;
Bool signedLoad;
HReg rD;
ARMAMode2* amode;
} LdSt16;
/* 8-bit (unsigned) load or store, may be conditional */
struct {
ARMCondCode cc; /* ARMcc_NV is not allowed */
Bool isLoad;
HReg rD;
ARMAMode1* amode;
} LdSt8U;
/* 8-bit signed load, may be conditional */
struct {
ARMCondCode cc; /* ARMcc_NV is not allowed */
HReg rD;
ARMAMode2* amode;
} Ld8S;
/* Update the guest R15T value, then exit requesting to chain
to it. May be conditional. Urr, use of Addr32 implicitly
assumes that wordsize(guest) == wordsize(host). */
struct {
Addr32 dstGA; /* next guest address */
ARMAMode1* amR15T; /* amode in guest state for R15T */
ARMCondCode cond; /* can be ARMcc_AL */
Bool toFastEP; /* chain to the slow or fast point? */
} XDirect;
/* Boring transfer to a guest address not known at JIT time.
Not chainable. May be conditional. */
struct {
HReg dstGA;
ARMAMode1* amR15T;
ARMCondCode cond; /* can be ARMcc_AL */
} XIndir;
/* Assisted transfer to a guest address, most general case.
Not chainable. May be conditional. */
struct {
HReg dstGA;
ARMAMode1* amR15T;
ARMCondCode cond; /* can be ARMcc_AL */
IRJumpKind jk;
} XAssisted;
/* Mov src to dst on the given condition, which may not
be ARMcc_AL. */
struct {
ARMCondCode cond;
HReg dst;
ARMRI84* src;
} CMov;
/* Pseudo-insn. Call target (an absolute address), on given
condition (which could be ARMcc_AL). */
struct {
ARMCondCode cond;
Addr32 target;
Int nArgRegs; /* # regs carrying args: 0 .. 4 */
RetLoc rloc; /* where the return value will be */
} Call;
/* (PLAIN) 32 * 32 -> 32: r0 = r2 * r3
(ZX) 32 *u 32 -> 64: r1:r0 = r2 *u r3
(SX) 32 *s 32 -> 64: r1:r0 = r2 *s r3
Why hardwired registers? Because the ARM ARM specifies
(eg for straight MUL) the result (Rd) and the left arg (Rm)
may not be the same register. That's not a constraint we
can enforce in the register allocator (without mucho extra
complexity). Hence hardwire it. At least using caller-saves
registers, which are less likely to be in use. */
struct {
ARMMulOp op;
} Mul;
/* LDREX{,H,B} r2, [r4] and
LDREXD r2, r3, [r4] (on LE hosts, transferred value is r3:r2)
Again, hardwired registers since this is not performance
critical, and there are possibly constraints on the
registers that we can't express in the register allocator.*/
struct {
Int szB; /* 1, 2, 4 or 8 */
} LdrEX;
/* STREX{,H,B} r0, r2, [r4] and
STREXD r0, r2, r3, [r4] (on LE hosts, transferred value is r3:r2)
r0 = SC( [r4] = r2 ) (8, 16, 32 bit transfers)
r0 = SC( [r4] = r3:r2) (64 bit transfers)
Ditto comment re fixed registers. */
struct {
Int szB; /* 1, 2, 4 or 8 */
} StrEX;
/* VFP INSTRUCTIONS */
/* 64-bit Fp load/store */
struct {
Bool isLoad;
HReg dD;
ARMAModeV* amode;
} VLdStD;
/* 32-bit Fp load/store */
struct {
Bool isLoad;
HReg fD;
ARMAModeV* amode;
} VLdStS;
/* 64-bit FP binary arithmetic */
struct {
ARMVfpOp op;
HReg dst;
HReg argL;
HReg argR;
} VAluD;
/* 32-bit FP binary arithmetic */
struct {
ARMVfpOp op;
HReg dst;
HReg argL;
HReg argR;
} VAluS;
/* 64-bit FP unary, also reg-reg move */
struct {
ARMVfpUnaryOp op;
HReg dst;
HReg src;
} VUnaryD;
/* 32-bit FP unary, also reg-reg move */
struct {
ARMVfpUnaryOp op;
HReg dst;
HReg src;
} VUnaryS;
/* 64-bit FP compare and move results to CPSR (FCMPD;FMSTAT) */
struct {
HReg argL;
HReg argR;
} VCmpD;
/* 64-bit FP mov src to dst on the given condition, which may
not be ARMcc_AL. */
struct {
ARMCondCode cond;
HReg dst;
HReg src;
} VCMovD;
/* 32-bit FP mov src to dst on the given condition, which may
not be ARMcc_AL. */
struct {
ARMCondCode cond;
HReg dst;
HReg src;
} VCMovS;
/* Convert between 32-bit and 64-bit FP values (both ways).
(FCVTSD, FCVTDS) */
struct {
Bool sToD; /* True: F32->F64. False: F64->F32 */
HReg dst;
HReg src;
} VCvtSD;
/* Transfer a VFP D reg to/from two integer registers (VMOV) */
struct {
Bool toD;
HReg dD;
HReg rHi;
HReg rLo;
} VXferD;
/* Transfer a VFP S reg to/from an integer register (VMOV) */
struct {
Bool toS;
HReg fD;
HReg rLo;
} VXferS;
/* Convert between 32-bit ints and 64-bit FP values (both ways
and both signednesses). (FSITOD, FUITOD, FTOSID, FTOUID) */
struct {
Bool iToD; /* True: I32->F64. False: F64->I32 */
Bool syned; /* True: I32 is signed. False: I32 is unsigned */
HReg dst;
HReg src;
} VCvtID;
/* Move a 32-bit value to/from the FPSCR (FMXR, FMRX) */
struct {
Bool toFPSCR;
HReg iReg;
} FPSCR;
/* Mem fence. An insn which fences all loads and stores as
much as possible before continuing. On ARM we emit the
sequence
mcr 15,0,r0,c7,c10,4 (DSB)
mcr 15,0,r0,c7,c10,5 (DMB)
mcr 15,0,r0,c7,c5,4 (ISB)
which is probably total overkill, but better safe than
sorry.
*/
struct {
} MFence;
/* A CLREX instruction. */
struct {
} CLREX;
/* Neon data processing instruction: 3 registers of the same
length */
struct {
ARMNeonBinOp op;
HReg dst;
HReg argL;
HReg argR;
UInt size;
Bool Q;
} NBinary;
struct {
ARMNeonBinOp op;
ARMNRS* dst;
ARMNRS* argL;
ARMNRS* argR;
UInt size;
Bool Q;
} NBinaryS;
struct {
ARMNeonShiftOp op;
HReg dst;
HReg argL;
HReg argR;
UInt size;
Bool Q;
} NShift;
struct {
HReg dst;
HReg src;
UInt amt; /* 1..63 only */
} NShl64;
struct {
Bool isLoad;
HReg dQ;
ARMAModeN *amode;
} NLdStQ;
struct {
Bool isLoad;
HReg dD;
ARMAModeN *amode;
} NLdStD;
struct {
ARMNeonUnOpS op;
ARMNRS* dst;
ARMNRS* src;
UInt size;
Bool Q;
} NUnaryS;
struct {
ARMNeonUnOp op;
HReg dst;
HReg src;
UInt size;
Bool Q;
} NUnary;
/* Takes two arguments and modifies them both. */
struct {
ARMNeonDualOp op;
HReg arg1;
HReg arg2;
UInt size;
Bool Q;
} NDual;
struct {
HReg dst;
ARMNImm* imm;
} NeonImm;
/* 128-bit Neon move src to dst on the given condition, which
may not be ARMcc_AL. */
struct {
ARMCondCode cond;
HReg dst;
HReg src;
} NCMovQ;
struct {
/* Note: rD != rN */
HReg rD;
HReg rN;
UInt imm32;
} Add32;
struct {
ARMAMode1* amCounter;
ARMAMode1* amFailAddr;
} EvCheck;
struct {
/* No fields. The address of the counter to inc is
installed later, post-translation, by patching it in,
as it is not known at translation time. */
} ProfInc;
} ARMin;
}
ARMInstr;
extern ARMInstr* ARMInstr_Alu ( ARMAluOp, HReg, HReg, ARMRI84* );
extern ARMInstr* ARMInstr_Shift ( ARMShiftOp, HReg, HReg, ARMRI5* );
extern ARMInstr* ARMInstr_Unary ( ARMUnaryOp, HReg, HReg );
extern ARMInstr* ARMInstr_CmpOrTst ( Bool isCmp, HReg, ARMRI84* );
extern ARMInstr* ARMInstr_Mov ( HReg, ARMRI84* );
extern ARMInstr* ARMInstr_Imm32 ( HReg, UInt );
extern ARMInstr* ARMInstr_LdSt32 ( ARMCondCode,
Bool isLoad, HReg, ARMAMode1* );
extern ARMInstr* ARMInstr_LdSt16 ( ARMCondCode,
Bool isLoad, Bool signedLoad,
HReg, ARMAMode2* );
extern ARMInstr* ARMInstr_LdSt8U ( ARMCondCode,
Bool isLoad, HReg, ARMAMode1* );
extern ARMInstr* ARMInstr_Ld8S ( ARMCondCode, HReg, ARMAMode2* );
extern ARMInstr* ARMInstr_XDirect ( Addr32 dstGA, ARMAMode1* amR15T,
ARMCondCode cond, Bool toFastEP );
extern ARMInstr* ARMInstr_XIndir ( HReg dstGA, ARMAMode1* amR15T,
ARMCondCode cond );
extern ARMInstr* ARMInstr_XAssisted ( HReg dstGA, ARMAMode1* amR15T,
ARMCondCode cond, IRJumpKind jk );
extern ARMInstr* ARMInstr_CMov ( ARMCondCode, HReg dst, ARMRI84* src );
extern ARMInstr* ARMInstr_Call ( ARMCondCode, Addr32, Int nArgRegs,
RetLoc rloc );
extern ARMInstr* ARMInstr_Mul ( ARMMulOp op );
extern ARMInstr* ARMInstr_LdrEX ( Int szB );
extern ARMInstr* ARMInstr_StrEX ( Int szB );
extern ARMInstr* ARMInstr_VLdStD ( Bool isLoad, HReg, ARMAModeV* );
extern ARMInstr* ARMInstr_VLdStS ( Bool isLoad, HReg, ARMAModeV* );
extern ARMInstr* ARMInstr_VAluD ( ARMVfpOp op, HReg, HReg, HReg );
extern ARMInstr* ARMInstr_VAluS ( ARMVfpOp op, HReg, HReg, HReg );
extern ARMInstr* ARMInstr_VUnaryD ( ARMVfpUnaryOp, HReg dst, HReg src );
extern ARMInstr* ARMInstr_VUnaryS ( ARMVfpUnaryOp, HReg dst, HReg src );
extern ARMInstr* ARMInstr_VCmpD ( HReg argL, HReg argR );
extern ARMInstr* ARMInstr_VCMovD ( ARMCondCode, HReg dst, HReg src );
extern ARMInstr* ARMInstr_VCMovS ( ARMCondCode, HReg dst, HReg src );
extern ARMInstr* ARMInstr_VCvtSD ( Bool sToD, HReg dst, HReg src );
extern ARMInstr* ARMInstr_VXferD ( Bool toD, HReg dD, HReg rHi, HReg rLo );
extern ARMInstr* ARMInstr_VXferS ( Bool toS, HReg fD, HReg rLo );
extern ARMInstr* ARMInstr_VCvtID ( Bool iToD, Bool syned,
HReg dst, HReg src );
extern ARMInstr* ARMInstr_FPSCR ( Bool toFPSCR, HReg iReg );
extern ARMInstr* ARMInstr_MFence ( void );
extern ARMInstr* ARMInstr_CLREX ( void );
extern ARMInstr* ARMInstr_NLdStQ ( Bool isLoad, HReg, ARMAModeN* );
extern ARMInstr* ARMInstr_NLdStD ( Bool isLoad, HReg, ARMAModeN* );
extern ARMInstr* ARMInstr_NUnary ( ARMNeonUnOp, HReg, HReg, UInt, Bool );
extern ARMInstr* ARMInstr_NUnaryS ( ARMNeonUnOpS, ARMNRS*, ARMNRS*,
UInt, Bool );
extern ARMInstr* ARMInstr_NDual ( ARMNeonDualOp, HReg, HReg, UInt, Bool );
extern ARMInstr* ARMInstr_NBinary ( ARMNeonBinOp, HReg, HReg, HReg,
UInt, Bool );
extern ARMInstr* ARMInstr_NShift ( ARMNeonShiftOp, HReg, HReg, HReg,
UInt, Bool );
extern ARMInstr* ARMInstr_NShl64 ( HReg, HReg, UInt );
extern ARMInstr* ARMInstr_NeonImm ( HReg, ARMNImm* );
extern ARMInstr* ARMInstr_NCMovQ ( ARMCondCode, HReg, HReg );
extern ARMInstr* ARMInstr_Add32 ( HReg rD, HReg rN, UInt imm32 );
extern ARMInstr* ARMInstr_EvCheck ( ARMAMode1* amCounter,
ARMAMode1* amFailAddr );
extern ARMInstr* ARMInstr_ProfInc ( void );
extern void ppARMInstr ( const ARMInstr* );
/* Some functions that insulate the register allocator from details
of the underlying instruction set. */
extern void getRegUsage_ARMInstr ( HRegUsage*, const ARMInstr*, Bool );
extern void mapRegs_ARMInstr ( HRegRemap*, ARMInstr*, Bool );
extern Bool isMove_ARMInstr ( const ARMInstr*, HReg*, HReg* );
extern Int emit_ARMInstr ( /*MB_MOD*/Bool* is_profInc,
UChar* buf, Int nbuf, const ARMInstr* i,
Bool mode64,
VexEndness endness_host,
const void* disp_cp_chain_me_to_slowEP,
const void* disp_cp_chain_me_to_fastEP,
const void* disp_cp_xindir,
const void* disp_cp_xassisted );
extern void genSpill_ARM ( /*OUT*/HInstr** i1, /*OUT*/HInstr** i2,
HReg rreg, Int offset, Bool );
extern void genReload_ARM ( /*OUT*/HInstr** i1, /*OUT*/HInstr** i2,
HReg rreg, Int offset, Bool );
extern const RRegUniverse* getRRegUniverse_ARM ( void );
extern HInstrArray* iselSB_ARM ( const IRSB*,
VexArch,
const VexArchInfo*,
const VexAbiInfo*,
Int offs_Host_EvC_Counter,
Int offs_Host_EvC_FailAddr,
Bool chainingAllowed,
Bool addProfInc,
Addr max_ga );
/* How big is an event check? This is kind of a kludge because it
depends on the offsets of host_EvC_FAILADDR and
host_EvC_COUNTER. */
extern Int evCheckSzB_ARM (void);
/* Perform a chaining and unchaining of an XDirect jump. */
extern VexInvalRange chainXDirect_ARM ( VexEndness endness_host,
void* place_to_chain,
const void* disp_cp_chain_me_EXPECTED,
const void* place_to_jump_to );
extern VexInvalRange unchainXDirect_ARM ( VexEndness endness_host,
void* place_to_unchain,
const void* place_to_jump_to_EXPECTED,
const void* disp_cp_chain_me );
/* Patch the counter location into an existing ProfInc point. */
extern VexInvalRange patchProfInc_ARM ( VexEndness endness_host,
void* place_to_patch,
const ULong* location_of_counter );
#endif /* ndef __VEX_HOST_ARM_DEFS_H */
/*---------------------------------------------------------------*/
/*--- end host_arm_defs.h ---*/
/*---------------------------------------------------------------*/