//
//===----------------------------------------------------------------------===//
-#ifndef X86BASEINFO_H
-#define X86BASEINFO_H
+#ifndef LLVM_LIB_TARGET_X86_MCTARGETDESC_X86BASEINFO_H
+#define LLVM_LIB_TARGET_X86_MCTARGETDESC_X86BASEINFO_H
#include "X86MCTargetDesc.h"
+#include "llvm/MC/MCInstrDesc.h"
#include "llvm/Support/DataTypes.h"
-#include <cassert>
+#include "llvm/Support/ErrorHandling.h"
namespace llvm {
AddrNumOperands = 5
};
} // end namespace X86;
-
/// X86II - This namespace holds all of the target specific flags that
/// instruction info tracks.
MO_PLT,
/// MO_TLSGD - On a symbol operand this indicates that the immediate is
- /// some TLS offset.
+ /// the offset of the GOT entry with the TLS index structure that contains
+ /// the module number and variable offset for the symbol. Used in the
+ /// general dynamic TLS access model.
///
/// See 'ELF Handling for Thread-Local Storage' for more details.
/// SYMBOL_LABEL @TLSGD
MO_TLSGD,
+ /// MO_TLSLD - On a symbol operand this indicates that the immediate is
+ /// the offset of the GOT entry with the TLS index for the module that
+ /// contains the symbol. When this index is passed to a call to
+ /// __tls_get_addr, the function will return the base address of the TLS
+ /// block for the symbol. Used in the x86-64 local dynamic TLS access model.
+ ///
+ /// See 'ELF Handling for Thread-Local Storage' for more details.
+ /// SYMBOL_LABEL @TLSLD
+ MO_TLSLD,
+
+ /// MO_TLSLDM - On a symbol operand this indicates that the immediate is
+ /// the offset of the GOT entry with the TLS index for the module that
+ /// contains the symbol. When this index is passed to a call to
+ /// ___tls_get_addr, the function will return the base address of the TLS
+ /// block for the symbol. Used in the IA32 local dynamic TLS access model.
+ ///
+ /// See 'ELF Handling for Thread-Local Storage' for more details.
+ /// SYMBOL_LABEL @TLSLDM
+ MO_TLSLDM,
+
/// MO_GOTTPOFF - On a symbol operand this indicates that the immediate is
- /// some TLS offset.
+ /// the offset of the GOT entry with the thread-pointer offset for the
+ /// symbol. Used in the x86-64 initial exec TLS access model.
///
/// See 'ELF Handling for Thread-Local Storage' for more details.
/// SYMBOL_LABEL @GOTTPOFF
MO_GOTTPOFF,
/// MO_INDNTPOFF - On a symbol operand this indicates that the immediate is
- /// some TLS offset.
+ /// the absolute address of the GOT entry with the negative thread-pointer
+ /// offset for the symbol. Used in the non-PIC IA32 initial exec TLS access
+ /// model.
///
/// See 'ELF Handling for Thread-Local Storage' for more details.
/// SYMBOL_LABEL @INDNTPOFF
MO_INDNTPOFF,
/// MO_TPOFF - On a symbol operand this indicates that the immediate is
- /// some TLS offset.
+ /// the thread-pointer offset for the symbol. Used in the x86-64 local
+ /// exec TLS access model.
///
/// See 'ELF Handling for Thread-Local Storage' for more details.
/// SYMBOL_LABEL @TPOFF
MO_TPOFF,
+ /// MO_DTPOFF - On a symbol operand this indicates that the immediate is
+ /// the offset of the GOT entry with the TLS offset of the symbol. Used
+ /// in the local dynamic TLS access model.
+ ///
+ /// See 'ELF Handling for Thread-Local Storage' for more details.
+ /// SYMBOL_LABEL @DTPOFF
+ MO_DTPOFF,
+
/// MO_NTPOFF - On a symbol operand this indicates that the immediate is
- /// some TLS offset.
+ /// the negative thread-pointer offset for the symbol. Used in the IA32
+ /// local exec TLS access model.
///
/// See 'ELF Handling for Thread-Local Storage' for more details.
/// SYMBOL_LABEL @NTPOFF
MO_NTPOFF,
+ /// MO_GOTNTPOFF - On a symbol operand this indicates that the immediate is
+ /// the offset of the GOT entry with the negative thread-pointer offset for
+ /// the symbol. Used in the PIC IA32 initial exec TLS access model.
+ ///
+ /// See 'ELF Handling for Thread-Local Storage' for more details.
+ /// SYMBOL_LABEL @GOTNTPOFF
+ MO_GOTNTPOFF,
+
/// MO_DLLIMPORT - On a symbol operand "FOO", this indicates that the
/// reference is actually to the "__imp_FOO" symbol. This is used for
/// dllimport linkage on windows.
/// is some TLS offset from the picbase.
///
/// This is the 32-bit TLS offset for Darwin TLS in PIC mode.
- MO_TLVP_PIC_BASE
+ MO_TLVP_PIC_BASE,
+
+ /// MO_SECREL - On a symbol operand this indicates that the immediate is
+ /// the offset from beginning of section.
+ ///
+ /// This is the TLS offset for the COFF/Windows TLS mechanism.
+ MO_SECREL
};
- enum {
+ enum : uint64_t {
//===------------------------------------------------------------------===//
// Instruction encodings. These are the standard/most common forms for X86
// instructions.
///
MRMSrcMem = 6,
+ /// RawFrmMemOffs - This form is for instructions that store an absolute
+ /// memory offset as an immediate with a possible segment override.
+ RawFrmMemOffs = 7,
+
+ /// RawFrmSrc - This form is for instructions that use the source index
+ /// register SI/ESI/RSI with a possible segment override.
+ RawFrmSrc = 8,
+
+ /// RawFrmDst - This form is for instructions that use the destination index
+ /// register DI/EDI/ESI.
+ RawFrmDst = 9,
+
+ /// RawFrmSrc - This form is for instructions that use the source index
+ /// register SI/ESI/ERI with a possible segment override, and also the
+ /// destination index register DI/ESI/RDI.
+ RawFrmDstSrc = 10,
+
+ /// RawFrmImm8 - This is used for the ENTER instruction, which has two
+ /// immediates, the first of which is a 16-bit immediate (specified by
+ /// the imm encoding) and the second is a 8-bit fixed value.
+ RawFrmImm8 = 11,
+
+ /// RawFrmImm16 - This is used for CALL FAR instructions, which have two
+ /// immediates, the first of which is a 16 or 32-bit immediate (specified by
+ /// the imm encoding) and the second is a 16-bit fixed value. In the AMD
+ /// manual, this operand is described as pntr16:32 and pntr16:16
+ RawFrmImm16 = 12,
+
+ /// MRMX[rm] - The forms are used to represent instructions that use a
+ /// Mod/RM byte, and don't use the middle field for anything.
+ MRMXr = 14, MRMXm = 15,
+
/// MRM[0-7][rm] - These forms are used to represent instructions that use
/// a Mod/RM byte, and use the middle field to hold extended opcode
/// information. In the intel manual these are represented as /0, /1, ...
MRM0m = 24, MRM1m = 25, MRM2m = 26, MRM3m = 27, // Format /0 /1 /2 /3
MRM4m = 28, MRM5m = 29, MRM6m = 30, MRM7m = 31, // Format /4 /5 /6 /7
- // MRMInitReg - This form is used for instructions whose source and
- // destinations are the same register.
- MRMInitReg = 32,
-
- //// MRM_C1 - A mod/rm byte of exactly 0xC1.
- MRM_C1 = 33,
- MRM_C2 = 34,
- MRM_C3 = 35,
- MRM_C4 = 36,
- MRM_C8 = 37,
- MRM_C9 = 38,
- MRM_E8 = 39,
- MRM_F0 = 40,
- MRM_F8 = 41,
- MRM_F9 = 42,
- MRM_D0 = 45,
- MRM_D1 = 46,
+ //// MRM_XX - A mod/rm byte of exactly 0xXX.
+ MRM_C0 = 32, MRM_C1 = 33, MRM_C2 = 34, MRM_C3 = 35,
+ MRM_C4 = 36, MRM_C5 = 37, MRM_C6 = 38, MRM_C7 = 39,
+ MRM_C8 = 40, MRM_C9 = 41, MRM_CA = 42, MRM_CB = 43,
+ MRM_CC = 44, MRM_CD = 45, MRM_CE = 46, MRM_CF = 47,
+ MRM_D0 = 48, MRM_D1 = 49, MRM_D2 = 50, MRM_D3 = 51,
+ MRM_D4 = 52, MRM_D5 = 53, MRM_D6 = 54, MRM_D7 = 55,
+ MRM_D8 = 56, MRM_D9 = 57, MRM_DA = 58, MRM_DB = 59,
+ MRM_DC = 60, MRM_DD = 61, MRM_DE = 62, MRM_DF = 63,
+ MRM_E0 = 64, MRM_E1 = 65, MRM_E2 = 66, MRM_E3 = 67,
+ MRM_E4 = 68, MRM_E5 = 69, MRM_E6 = 70, MRM_E7 = 71,
+ MRM_E8 = 72, MRM_E9 = 73, MRM_EA = 74, MRM_EB = 75,
+ MRM_EC = 76, MRM_ED = 77, MRM_EE = 78, MRM_EF = 79,
+ MRM_F0 = 80, MRM_F1 = 81, MRM_F2 = 82, MRM_F3 = 83,
+ MRM_F4 = 84, MRM_F5 = 85, MRM_F6 = 86, MRM_F7 = 87,
+ MRM_F8 = 88, MRM_F9 = 89, MRM_FA = 90, MRM_FB = 91,
+ MRM_FC = 92, MRM_FD = 93, MRM_FE = 94, MRM_FF = 95,
+
+ FormMask = 127,
- /// RawFrmImm8 - This is used for the ENTER instruction, which has two
- /// immediates, the first of which is a 16-bit immediate (specified by
- /// the imm encoding) and the second is a 8-bit fixed value.
- RawFrmImm8 = 43,
-
- /// RawFrmImm16 - This is used for CALL FAR instructions, which have two
- /// immediates, the first of which is a 16 or 32-bit immediate (specified by
- /// the imm encoding) and the second is a 16-bit fixed value. In the AMD
- /// manual, this operand is described as pntr16:32 and pntr16:16
- RawFrmImm16 = 44,
+ //===------------------------------------------------------------------===//
+ // Actual flags...
- FormMask = 63,
+ // OpSize - OpSizeFixed implies instruction never needs a 0x66 prefix.
+ // OpSize16 means this is a 16-bit instruction and needs 0x66 prefix in
+ // 32-bit mode. OpSize32 means this is a 32-bit instruction needs a 0x66
+ // prefix in 16-bit mode.
+ OpSizeShift = 7,
+ OpSizeMask = 0x3 << OpSizeShift,
+
+ OpSizeFixed = 0 << OpSizeShift,
+ OpSize16 = 1 << OpSizeShift,
+ OpSize32 = 2 << OpSizeShift,
+
+ // AsSize - AdSizeX implies this instruction determines its need of 0x67
+ // prefix from a normal ModRM memory operand. The other types indicate that
+ // an operand is encoded with a specific width and a prefix is needed if
+ // it differs from the current mode.
+ AdSizeShift = OpSizeShift + 2,
+ AdSizeMask = 0x3 << AdSizeShift,
+
+ AdSizeX = 1 << AdSizeShift,
+ AdSize16 = 1 << AdSizeShift,
+ AdSize32 = 2 << AdSizeShift,
+ AdSize64 = 3 << AdSizeShift,
//===------------------------------------------------------------------===//
- // Actual flags...
+ // OpPrefix - There are several prefix bytes that are used as opcode
+ // extensions. These are 0x66, 0xF3, and 0xF2. If this field is 0 there is
+ // no prefix.
+ //
+ OpPrefixShift = AdSizeShift + 2,
+ OpPrefixMask = 0x7 << OpPrefixShift,
- // OpSize - Set if this instruction requires an operand size prefix (0x66),
- // which most often indicates that the instruction operates on 16 bit data
- // instead of 32 bit data.
- OpSize = 1 << 6,
+ // PS, PD - Prefix code for packed single and double precision vector
+ // floating point operations performed in the SSE registers.
+ PS = 1 << OpPrefixShift, PD = 2 << OpPrefixShift,
- // AsSize - Set if this instruction requires an operand size prefix (0x67),
- // which most often indicates that the instruction address 16 bit address
- // instead of 32 bit address (or 32 bit address in 64 bit mode).
- AdSize = 1 << 7,
+ // XS, XD - These prefix codes are for single and double precision scalar
+ // floating point operations performed in the SSE registers.
+ XS = 3 << OpPrefixShift, XD = 4 << OpPrefixShift,
//===------------------------------------------------------------------===//
- // Op0Mask - There are several prefix bytes that are used to form two byte
- // opcodes. These are currently 0x0F, 0xF3, and 0xD8-0xDF. This mask is
- // used to obtain the setting of this field. If no bits in this field is
- // set, there is no prefix byte for obtaining a multibyte opcode.
+ // OpMap - This field determines which opcode map this instruction
+ // belongs to. i.e. one-byte, two-byte, 0x0f 0x38, 0x0f 0x3a, etc.
//
- Op0Shift = 8,
- Op0Mask = 0x1F << Op0Shift,
+ OpMapShift = OpPrefixShift + 3,
+ OpMapMask = 0x7 << OpMapShift,
+
+ // OB - OneByte - Set if this instruction has a one byte opcode.
+ OB = 0 << OpMapShift,
// TB - TwoByte - Set if this instruction has a two byte opcode, which
// starts with a 0x0F byte before the real opcode.
- TB = 1 << Op0Shift,
-
- // REP - The 0xF3 prefix byte indicating repetition of the following
- // instruction.
- REP = 2 << Op0Shift,
-
- // D8-DF - These escape opcodes are used by the floating point unit. These
- // values must remain sequential.
- D8 = 3 << Op0Shift, D9 = 4 << Op0Shift,
- DA = 5 << Op0Shift, DB = 6 << Op0Shift,
- DC = 7 << Op0Shift, DD = 8 << Op0Shift,
- DE = 9 << Op0Shift, DF = 10 << Op0Shift,
-
- // XS, XD - These prefix codes are for single and double precision scalar
- // floating point operations performed in the SSE registers.
- XD = 11 << Op0Shift, XS = 12 << Op0Shift,
+ TB = 1 << OpMapShift,
- // T8, TA, A6, A7 - Prefix after the 0x0F prefix.
- T8 = 13 << Op0Shift, TA = 14 << Op0Shift,
- A6 = 15 << Op0Shift, A7 = 16 << Op0Shift,
+ // T8, TA - Prefix after the 0x0F prefix.
+ T8 = 2 << OpMapShift, TA = 3 << OpMapShift,
- // T8XD - Prefix before and after 0x0F. Combination of T8 and XD.
- T8XD = 17 << Op0Shift,
+ // XOP8 - Prefix to include use of imm byte.
+ XOP8 = 4 << OpMapShift,
- // T8XS - Prefix before and after 0x0F. Combination of T8 and XS.
- T8XS = 18 << Op0Shift,
+ // XOP9 - Prefix to exclude use of imm byte.
+ XOP9 = 5 << OpMapShift,
- // TAXD - Prefix before and after 0x0F. Combination of TA and XD.
- TAXD = 19 << Op0Shift,
+ // XOPA - Prefix to encode 0xA in VEX.MMMM of XOP instructions.
+ XOPA = 6 << OpMapShift,
//===------------------------------------------------------------------===//
// REX_W - REX prefixes are instruction prefixes used in 64-bit mode.
// etc. We only cares about REX.W and REX.R bits and only the former is
// statically determined.
//
- REXShift = Op0Shift + 5,
+ REXShift = OpMapShift + 3,
REX_W = 1 << REXShift,
//===------------------------------------------------------------------===//
// This three-bit field describes the size of an immediate operand. Zero is
// unused so that we can tell if we forgot to set a value.
ImmShift = REXShift + 1,
- ImmMask = 7 << ImmShift,
+ ImmMask = 15 << ImmShift,
Imm8 = 1 << ImmShift,
Imm8PCRel = 2 << ImmShift,
Imm16 = 3 << ImmShift,
Imm16PCRel = 4 << ImmShift,
Imm32 = 5 << ImmShift,
Imm32PCRel = 6 << ImmShift,
- Imm64 = 7 << ImmShift,
+ Imm32S = 7 << ImmShift,
+ Imm64 = 8 << ImmShift,
//===------------------------------------------------------------------===//
// FP Instruction Classification... Zero is non-fp instruction.
// FPTypeMask - Mask for all of the FP types...
- FPTypeShift = ImmShift + 3,
+ FPTypeShift = ImmShift + 4,
FPTypeMask = 7 << FPTypeShift,
// NotFP - The default, set for instructions that do not use FP registers.
LOCKShift = FPTypeShift + 3,
LOCK = 1 << LOCKShift,
- // Segment override prefixes. Currently we just need ability to address
- // stuff in gs and fs segments.
- SegOvrShift = LOCKShift + 1,
- SegOvrMask = 3 << SegOvrShift,
- FS = 1 << SegOvrShift,
- GS = 2 << SegOvrShift,
+ // REP prefix
+ REPShift = LOCKShift + 1,
+ REP = 1 << REPShift,
- // Execution domain for SSE instructions in bits 23, 24.
- // 0 in bits 23-24 means normal, non-SSE instruction.
- SSEDomainShift = SegOvrShift + 2,
+ // Execution domain for SSE instructions.
+ // 0 means normal, non-SSE instruction.
+ SSEDomainShift = REPShift + 1,
- OpcodeShift = SSEDomainShift + 2,
+ // Encoding
+ EncodingShift = SSEDomainShift + 2,
+ EncodingMask = 0x3 << EncodingShift,
- //===------------------------------------------------------------------===//
- /// VEX - The opcode prefix used by AVX instructions
- VEXShift = OpcodeShift + 8,
- VEX = 1U << 0,
+ // VEX - encoding using 0xC4/0xC5
+ VEX = 1 << EncodingShift,
+
+ /// XOP - Opcode prefix used by XOP instructions.
+ XOP = 2 << EncodingShift,
+
+ // VEX_EVEX - Specifies that this instruction use EVEX form which provides
+ // syntax support up to 32 512-bit register operands and up to 7 16-bit
+ // mask operands as well as source operand data swizzling/memory operand
+ // conversion, eviction hint, and rounding mode.
+ EVEX = 3 << EncodingShift,
+
+ // Opcode
+ OpcodeShift = EncodingShift + 2,
/// VEX_W - Has a opcode specific functionality, but is used in the same
/// way as REX_W is for regular SSE instructions.
- VEX_W = 1U << 1,
+ VEX_WShift = OpcodeShift + 8,
+ VEX_W = 1ULL << VEX_WShift,
/// VEX_4V - Used to specify an additional AVX/SSE register. Several 2
/// address instructions in SSE are represented as 3 address ones in AVX
/// and the additional register is encoded in VEX_VVVV prefix.
- VEX_4V = 1U << 2,
+ VEX_4VShift = VEX_WShift + 1,
+ VEX_4V = 1ULL << VEX_4VShift,
/// VEX_4VOp3 - Similar to VEX_4V, but used on instructions that encode
/// operand 3 with VEX.vvvv.
- VEX_4VOp3 = 1U << 3,
+ VEX_4VOp3Shift = VEX_4VShift + 1,
+ VEX_4VOp3 = 1ULL << VEX_4VOp3Shift,
/// VEX_I8IMM - Specifies that the last register used in a AVX instruction,
/// must be encoded in the i8 immediate field. This usually happens in
/// instructions with 4 operands.
- VEX_I8IMM = 1U << 4,
+ VEX_I8IMMShift = VEX_4VOp3Shift + 1,
+ VEX_I8IMM = 1ULL << VEX_I8IMMShift,
/// VEX_L - Stands for a bit in the VEX opcode prefix meaning the current
/// instruction uses 256-bit wide registers. This is usually auto detected
/// if a VR256 register is used, but some AVX instructions also have this
/// field marked when using a f256 memory references.
- VEX_L = 1U << 5,
+ VEX_LShift = VEX_I8IMMShift + 1,
+ VEX_L = 1ULL << VEX_LShift,
// VEX_LIG - Specifies that this instruction ignores the L-bit in the VEX
// prefix. Usually used for scalar instructions. Needed by disassembler.
- VEX_LIG = 1U << 6,
+ VEX_LIGShift = VEX_LShift + 1,
+ VEX_LIG = 1ULL << VEX_LIGShift,
+
+ // TODO: we should combine VEX_L and VEX_LIG together to form a 2-bit field
+ // with following encoding:
+ // - 00 V128
+ // - 01 V256
+ // - 10 V512
+ // - 11 LIG (but, in insn encoding, leave VEX.L and EVEX.L in zeros.
+ // this will save 1 tsflag bit
+
+ // EVEX_K - Set if this instruction requires masking
+ EVEX_KShift = VEX_LIGShift + 1,
+ EVEX_K = 1ULL << EVEX_KShift,
+
+ // EVEX_Z - Set if this instruction has EVEX.Z field set.
+ EVEX_ZShift = EVEX_KShift + 1,
+ EVEX_Z = 1ULL << EVEX_ZShift,
+
+ // EVEX_L2 - Set if this instruction has EVEX.L' field set.
+ EVEX_L2Shift = EVEX_ZShift + 1,
+ EVEX_L2 = 1ULL << EVEX_L2Shift,
+
+ // EVEX_B - Set if this instruction has EVEX.B field set.
+ EVEX_BShift = EVEX_L2Shift + 1,
+ EVEX_B = 1ULL << EVEX_BShift,
+
+ // The scaling factor for the AVX512's 8-bit compressed displacement.
+ CD8_Scale_Shift = EVEX_BShift + 1,
+ CD8_Scale_Mask = 127ULL << CD8_Scale_Shift,
/// Has3DNow0F0FOpcode - This flag indicates that the instruction uses the
/// wacky 0x0F 0x0F prefix for 3DNow! instructions. The manual documents
/// storing a classifier in the imm8 field. To simplify our implementation,
/// we handle this by storeing the classifier in the opcode field and using
/// this flag to indicate that the encoder should do the wacky 3DNow! thing.
- Has3DNow0F0FOpcode = 1U << 7,
+ Has3DNow0F0FOpcodeShift = CD8_Scale_Shift + 7,
+ Has3DNow0F0FOpcode = 1ULL << Has3DNow0F0FOpcodeShift,
- /// XOP_W - Same bit as VEX_W. Used to indicate swapping of
- /// operand 3 and 4 to be encoded in ModRM or I8IMM. This is used
- /// for FMA4 and XOP instructions.
- XOP_W = 1U << 8
+ /// MemOp4 - Used to indicate swapping of operand 3 and 4 to be encoded in
+ /// ModRM or I8IMM. This is used for FMA4 and XOP instructions.
+ MemOp4Shift = Has3DNow0F0FOpcodeShift + 1,
+ MemOp4 = 1ULL << MemOp4Shift,
+
+ /// Explicitly specified rounding control
+ EVEX_RCShift = MemOp4Shift + 1,
+ EVEX_RC = 1ULL << EVEX_RCShift
};
// getBaseOpcodeFor - This function returns the "base" X86 opcode for the
// specified machine instruction.
//
- static inline unsigned char getBaseOpcodeFor(uint64_t TSFlags) {
+ inline unsigned char getBaseOpcodeFor(uint64_t TSFlags) {
return TSFlags >> X86II::OpcodeShift;
}
- static inline bool hasImm(uint64_t TSFlags) {
+ inline bool hasImm(uint64_t TSFlags) {
return (TSFlags & X86II::ImmMask) != 0;
}
/// getSizeOfImm - Decode the "size of immediate" field from the TSFlags field
/// of the specified instruction.
- static inline unsigned getSizeOfImm(uint64_t TSFlags) {
+ inline unsigned getSizeOfImm(uint64_t TSFlags) {
switch (TSFlags & X86II::ImmMask) {
- default: assert(0 && "Unknown immediate size");
+ default: llvm_unreachable("Unknown immediate size");
case X86II::Imm8:
case X86II::Imm8PCRel: return 1;
case X86II::Imm16:
case X86II::Imm16PCRel: return 2;
case X86II::Imm32:
+ case X86II::Imm32S:
case X86II::Imm32PCRel: return 4;
case X86II::Imm64: return 8;
}
/// isImmPCRel - Return true if the immediate of the specified instruction's
/// TSFlags indicates that it is pc relative.
- static inline unsigned isImmPCRel(uint64_t TSFlags) {
+ inline unsigned isImmPCRel(uint64_t TSFlags) {
switch (TSFlags & X86II::ImmMask) {
- default: assert(0 && "Unknown immediate size");
+ default: llvm_unreachable("Unknown immediate size");
case X86II::Imm8PCRel:
case X86II::Imm16PCRel:
case X86II::Imm32PCRel:
case X86II::Imm8:
case X86II::Imm16:
case X86II::Imm32:
+ case X86II::Imm32S:
case X86II::Imm64:
return false;
}
}
+ /// isImmSigned - Return true if the immediate of the specified instruction's
+ /// TSFlags indicates that it is signed.
+ inline unsigned isImmSigned(uint64_t TSFlags) {
+ switch (TSFlags & X86II::ImmMask) {
+ default: llvm_unreachable("Unknown immediate signedness");
+ case X86II::Imm32S:
+ return true;
+ case X86II::Imm8:
+ case X86II::Imm8PCRel:
+ case X86II::Imm16:
+ case X86II::Imm16PCRel:
+ case X86II::Imm32:
+ case X86II::Imm32PCRel:
+ case X86II::Imm64:
+ return false;
+ }
+ }
+
+ /// getOperandBias - compute any additional adjustment needed to
+ /// the offset to the start of the memory operand
+ /// in this instruction.
+ /// If this is a two-address instruction,skip one of the register operands.
+ /// FIXME: This should be handled during MCInst lowering.
+ inline int getOperandBias(const MCInstrDesc& Desc)
+ {
+ unsigned NumOps = Desc.getNumOperands();
+ unsigned CurOp = 0;
+ if (NumOps > 1 && Desc.getOperandConstraint(1, MCOI::TIED_TO) == 0)
+ ++CurOp;
+ else if (NumOps > 3 && Desc.getOperandConstraint(2, MCOI::TIED_TO) == 0 &&
+ Desc.getOperandConstraint(3, MCOI::TIED_TO) == 1)
+ // Special case for AVX-512 GATHER with 2 TIED_TO operands
+ // Skip the first 2 operands: dst, mask_wb
+ CurOp += 2;
+ else if (NumOps > 3 && Desc.getOperandConstraint(2, MCOI::TIED_TO) == 0 &&
+ Desc.getOperandConstraint(NumOps - 1, MCOI::TIED_TO) == 1)
+ // Special case for GATHER with 2 TIED_TO operands
+ // Skip the first 2 operands: dst, mask_wb
+ CurOp += 2;
+ else if (NumOps > 2 && Desc.getOperandConstraint(NumOps - 2, MCOI::TIED_TO) == 0)
+ // SCATTER
+ ++CurOp;
+ return CurOp;
+ }
+
/// getMemoryOperandNo - The function returns the MCInst operand # for the
/// first field of the memory operand. If the instruction doesn't have a
/// memory operand, this returns -1.
/// is duplicated in the MCInst (e.g. "EAX = addl EAX, [mem]") it is only
/// counted as one operand.
///
- static inline int getMemoryOperandNo(uint64_t TSFlags, unsigned Opcode) {
+ inline int getMemoryOperandNo(uint64_t TSFlags, unsigned Opcode) {
+ bool HasVEX_4V = TSFlags & X86II::VEX_4V;
+ bool HasMemOp4 = TSFlags & X86II::MemOp4;
+ bool HasEVEX_K = TSFlags & X86II::EVEX_K;
+
switch (TSFlags & X86II::FormMask) {
- case X86II::MRMInitReg: assert(0 && "FIXME: Remove this form");
- default: assert(0 && "Unknown FormMask value in getMemoryOperandNo!");
+ default: llvm_unreachable("Unknown FormMask value in getMemoryOperandNo!");
case X86II::Pseudo:
case X86II::RawFrm:
case X86II::AddRegFrm:
case X86II::MRMSrcReg:
case X86II::RawFrmImm8:
case X86II::RawFrmImm16:
- return -1;
+ case X86II::RawFrmMemOffs:
+ case X86II::RawFrmSrc:
+ case X86II::RawFrmDst:
+ case X86II::RawFrmDstSrc:
+ return -1;
case X86II::MRMDestMem:
return 0;
- case X86II::MRMSrcMem: {
- bool HasVEX_4V = (TSFlags >> X86II::VEXShift) & X86II::VEX_4V;
- bool HasXOP_W = (TSFlags >> X86II::VEXShift) & X86II::XOP_W;
- unsigned FirstMemOp = 1;
- if (HasVEX_4V)
- ++FirstMemOp;// Skip the register source (which is encoded in VEX_VVVV).
- if (HasXOP_W)
- ++FirstMemOp;// Skip the register source (which is encoded in I8IMM).
-
- // FIXME: Maybe lea should have its own form? This is a horrible hack.
- //if (Opcode == X86::LEA64r || Opcode == X86::LEA64_32r ||
- // Opcode == X86::LEA16r || Opcode == X86::LEA32r)
- return FirstMemOp;
- }
+ case X86II::MRMSrcMem:
+ // Start from 1, skip any registers encoded in VEX_VVVV or I8IMM, or a
+ // mask register.
+ return 1 + HasVEX_4V + HasMemOp4 + HasEVEX_K;
+ case X86II::MRMXr:
case X86II::MRM0r: case X86II::MRM1r:
case X86II::MRM2r: case X86II::MRM3r:
case X86II::MRM4r: case X86II::MRM5r:
case X86II::MRM6r: case X86II::MRM7r:
return -1;
+ case X86II::MRMXm:
case X86II::MRM0m: case X86II::MRM1m:
case X86II::MRM2m: case X86II::MRM3m:
case X86II::MRM4m: case X86II::MRM5m:
- case X86II::MRM6m: case X86II::MRM7m: {
- bool HasVEX_4V = (TSFlags >> X86II::VEXShift) & X86II::VEX_4V;
- unsigned FirstMemOp = 0;
- if (HasVEX_4V)
- ++FirstMemOp;// Skip the register dest (which is encoded in VEX_VVVV).
- return FirstMemOp;
- }
- case X86II::MRM_C1:
- case X86II::MRM_C2:
- case X86II::MRM_C3:
- case X86II::MRM_C4:
- case X86II::MRM_C8:
- case X86II::MRM_C9:
- case X86II::MRM_E8:
- case X86II::MRM_F0:
- case X86II::MRM_F8:
- case X86II::MRM_F9:
- case X86II::MRM_D0:
- case X86II::MRM_D1:
+ case X86II::MRM6m: case X86II::MRM7m:
+ // Start from 0, skip registers encoded in VEX_VVVV or a mask register.
+ return 0 + HasVEX_4V + HasEVEX_K;
+ case X86II::MRM_C0: case X86II::MRM_C1: case X86II::MRM_C2:
+ case X86II::MRM_C3: case X86II::MRM_C4: case X86II::MRM_C8:
+ case X86II::MRM_C9: case X86II::MRM_CA: case X86II::MRM_CB:
+ case X86II::MRM_CF: case X86II::MRM_D0: case X86II::MRM_D1:
+ case X86II::MRM_D4: case X86II::MRM_D5: case X86II::MRM_D6:
+ case X86II::MRM_D7: case X86II::MRM_D8: case X86II::MRM_D9:
+ case X86II::MRM_DA: case X86II::MRM_DB: case X86II::MRM_DC:
+ case X86II::MRM_DD: case X86II::MRM_DE: case X86II::MRM_DF:
+ case X86II::MRM_E0: case X86II::MRM_E1: case X86II::MRM_E2:
+ case X86II::MRM_E3: case X86II::MRM_E4: case X86II::MRM_E5:
+ case X86II::MRM_E8: case X86II::MRM_E9: case X86II::MRM_EA:
+ case X86II::MRM_EB: case X86II::MRM_EC: case X86II::MRM_ED:
+ case X86II::MRM_EE: case X86II::MRM_EF: case X86II::MRM_F0:
+ case X86II::MRM_F1: case X86II::MRM_F2: case X86II::MRM_F3:
+ case X86II::MRM_F4: case X86II::MRM_F5: case X86II::MRM_F6:
+ case X86II::MRM_F7: case X86II::MRM_F8: case X86II::MRM_F9:
+ case X86II::MRM_FA: case X86II::MRM_FB: case X86II::MRM_FC:
+ case X86II::MRM_FD: case X86II::MRM_FE: case X86II::MRM_FF:
return -1;
}
}
/// isX86_64ExtendedReg - Is the MachineOperand a x86-64 extended (r8 or
/// higher) register? e.g. r8, xmm8, xmm13, etc.
- static inline bool isX86_64ExtendedReg(unsigned RegNo) {
+ inline bool isX86_64ExtendedReg(unsigned RegNo) {
+ if ((RegNo > X86::XMM7 && RegNo <= X86::XMM15) ||
+ (RegNo > X86::XMM23 && RegNo <= X86::XMM31) ||
+ (RegNo > X86::YMM7 && RegNo <= X86::YMM15) ||
+ (RegNo > X86::YMM23 && RegNo <= X86::YMM31) ||
+ (RegNo > X86::ZMM7 && RegNo <= X86::ZMM15) ||
+ (RegNo > X86::ZMM23 && RegNo <= X86::ZMM31))
+ return true;
+
switch (RegNo) {
default: break;
case X86::R8: case X86::R9: case X86::R10: case X86::R11:
case X86::R12W: case X86::R13W: case X86::R14W: case X86::R15W:
case X86::R8B: case X86::R9B: case X86::R10B: case X86::R11B:
case X86::R12B: case X86::R13B: case X86::R14B: case X86::R15B:
- case X86::XMM8: case X86::XMM9: case X86::XMM10: case X86::XMM11:
- case X86::XMM12: case X86::XMM13: case X86::XMM14: case X86::XMM15:
- case X86::YMM8: case X86::YMM9: case X86::YMM10: case X86::YMM11:
- case X86::YMM12: case X86::YMM13: case X86::YMM14: case X86::YMM15:
case X86::CR8: case X86::CR9: case X86::CR10: case X86::CR11:
case X86::CR12: case X86::CR13: case X86::CR14: case X86::CR15:
- return true;
+ return true;
}
return false;
}
-
- static inline bool isX86_64NonExtLowByteReg(unsigned reg) {
+
+ /// is32ExtendedReg - Is the MemoryOperand a 32 extended (zmm16 or higher)
+ /// registers? e.g. zmm21, etc.
+ static inline bool is32ExtendedReg(unsigned RegNo) {
+ return ((RegNo > X86::XMM15 && RegNo <= X86::XMM31) ||
+ (RegNo > X86::YMM15 && RegNo <= X86::YMM31) ||
+ (RegNo > X86::ZMM15 && RegNo <= X86::ZMM31));
+ }
+
+
+ inline bool isX86_64NonExtLowByteReg(unsigned reg) {
return (reg == X86::SPL || reg == X86::BPL ||
reg == X86::SIL || reg == X86::DIL);
}
projects / oota-llvm.git / blobdiff