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case 0xdc:
case 0xdd:
case 0xde:
case 0xdf:
filter = new EscapeFilter(false, Form - X86Local::MRM0m);
break;
default:
if (needsModRMForDecode(Form))
filter = new ModFilter(isRegFormat(Form));
else
filter = new DumbFilter();
break;
} // switch (Opcode)
opcodeToSet = Opcode;
} // switch (Prefix)
assert(opcodeType != (OpcodeType)-1 &&
"Opcode type not set");
assert(filter && "Filter not set");
if (Form == X86Local::AddRegFrm) {
if(Spec->modifierType != MODIFIER_MODRM) {
assert(opcodeToSet < 0xf9 &&
"Not enough room for all ADDREG_FRM operands");
uint8_t currentOpcode;
for (currentOpcode = opcodeToSet;
currentOpcode < opcodeToSet + 8;
++currentOpcode)
tables.setTableFields(opcodeType,
insnContext(),
currentOpcode,
*filter,
UID, Is32Bit, IgnoresVEX_L);
Spec->modifierType = MODIFIER_OPCODE;
Spec->modifierBase = opcodeToSet;
} else {
// modifierBase was set where MODIFIER_MODRM was set
tables.setTableFields(opcodeType,
insnContext(),
opcodeToSet,
*filter,
UID, Is32Bit, IgnoresVEX_L);
}
} else {
tables.setTableFields(opcodeType,
insnContext(),
opcodeToSet,
*filter,
UID, Is32Bit, IgnoresVEX_L);
Spec->modifierType = MODIFIER_NONE;
Spec->modifierBase = opcodeToSet;
}
delete filter;
#undef MAP
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}
#define TYPE(str, type) if (s == str) return type;
OperandType RecognizableInstr::typeFromString(const std::string &s,
bool isSSE,
bool hasREX_WPrefix,
bool hasOpSizePrefix) {
if (isSSE) {
// For SSE instructions, we ignore the OpSize prefix and force operand
// sizes.
TYPE("GR16", TYPE_R16)
TYPE("GR32", TYPE_R32)
TYPE("GR64", TYPE_R64)
}
if(hasREX_WPrefix) {
// For instructions with a REX_W prefix, a declared 32-bit register encoding
// is special.
TYPE("GR32", TYPE_R32)
}
if(!hasOpSizePrefix) {
// For instructions without an OpSize prefix, a declared 16-bit register or
// immediate encoding is special.
TYPE("GR16", TYPE_R16)
TYPE("i16imm", TYPE_IMM16)
}
TYPE("i16mem", TYPE_Mv)
TYPE("i16imm", TYPE_IMMv)
TYPE("i16i8imm", TYPE_IMMv)
TYPE("GR16", TYPE_Rv)
TYPE("i32mem", TYPE_Mv)
TYPE("i32imm", TYPE_IMMv)
TYPE("i32i8imm", TYPE_IMM32)
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TYPE("u32u8imm", TYPE_IMM32)
TYPE("GR32", TYPE_Rv)
TYPE("i64mem", TYPE_Mv)
TYPE("i64i32imm", TYPE_IMM64)
TYPE("i64i8imm", TYPE_IMM64)
TYPE("GR64", TYPE_R64)
TYPE("i8mem", TYPE_M8)
TYPE("i8imm", TYPE_IMM8)
TYPE("GR8", TYPE_R8)
TYPE("VR128", TYPE_XMM128)
TYPE("f128mem", TYPE_M128)
TYPE("f256mem", TYPE_M256)
TYPE("FR64", TYPE_XMM64)
TYPE("f64mem", TYPE_M64FP)
TYPE("sdmem", TYPE_M64FP)
TYPE("FR32", TYPE_XMM32)
TYPE("f32mem", TYPE_M32FP)
TYPE("ssmem", TYPE_M32FP)
TYPE("RST", TYPE_ST)
TYPE("i128mem", TYPE_M128)
TYPE("i256mem", TYPE_M256)
TYPE("i64i32imm_pcrel", TYPE_REL64)
TYPE("i16imm_pcrel", TYPE_REL16)
TYPE("i32imm_pcrel", TYPE_REL32)
TYPE("SSECC", TYPE_IMM3)
TYPE("brtarget", TYPE_RELv)
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TYPE("uncondbrtarget", TYPE_RELv)
TYPE("brtarget8", TYPE_REL8)
TYPE("f80mem", TYPE_M80FP)
TYPE("lea32mem", TYPE_LEA)
TYPE("lea64_32mem", TYPE_LEA)
TYPE("lea64mem", TYPE_LEA)
TYPE("VR64", TYPE_MM64)
TYPE("i64imm", TYPE_IMMv)
TYPE("opaque32mem", TYPE_M1616)
TYPE("opaque48mem", TYPE_M1632)
TYPE("opaque80mem", TYPE_M1664)
TYPE("opaque512mem", TYPE_M512)
TYPE("SEGMENT_REG", TYPE_SEGMENTREG)
TYPE("DEBUG_REG", TYPE_DEBUGREG)
TYPE("CONTROL_REG", TYPE_CONTROLREG)
TYPE("offset8", TYPE_MOFFS8)
TYPE("offset16", TYPE_MOFFS16)
TYPE("offset32", TYPE_MOFFS32)
TYPE("offset64", TYPE_MOFFS64)
TYPE("VR256", TYPE_XMM256)
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TYPE("GR16_NOAX", TYPE_Rv)
TYPE("GR32_NOAX", TYPE_Rv)
TYPE("GR64_NOAX", TYPE_R64)
errs() << "Unhandled type string " << s << "\n";
llvm_unreachable("Unhandled type string");
}
#undef TYPE
#define ENCODING(str, encoding) if (s == str) return encoding;
OperandEncoding RecognizableInstr::immediateEncodingFromString
(const std::string &s,
bool hasOpSizePrefix) {
if(!hasOpSizePrefix) {
// For instructions without an OpSize prefix, a declared 16-bit register or
// immediate encoding is special.
ENCODING("i16imm", ENCODING_IW)
}
ENCODING("i32i8imm", ENCODING_IB)
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ENCODING("u32u8imm", ENCODING_IB)
ENCODING("SSECC", ENCODING_IB)
ENCODING("i16imm", ENCODING_Iv)
ENCODING("i16i8imm", ENCODING_IB)
ENCODING("i32imm", ENCODING_Iv)
ENCODING("i64i32imm", ENCODING_ID)
ENCODING("i64i8imm", ENCODING_IB)
ENCODING("i8imm", ENCODING_IB)
// This is not a typo. Instructions like BLENDVPD put
// register IDs in 8-bit immediates nowadays.
ENCODING("VR256", ENCODING_IB)
ENCODING("VR128", ENCODING_IB)
errs() << "Unhandled immediate encoding " << s << "\n";
llvm_unreachable("Unhandled immediate encoding");
}
OperandEncoding RecognizableInstr::rmRegisterEncodingFromString
(const std::string &s,
bool hasOpSizePrefix) {
ENCODING("GR16", ENCODING_RM)
ENCODING("GR32", ENCODING_RM)
ENCODING("GR64", ENCODING_RM)
ENCODING("GR8", ENCODING_RM)
ENCODING("VR128", ENCODING_RM)
ENCODING("FR64", ENCODING_RM)
ENCODING("FR32", ENCODING_RM)
ENCODING("VR64", ENCODING_RM)
ENCODING("VR256", ENCODING_RM)
errs() << "Unhandled R/M register encoding " << s << "\n";
llvm_unreachable("Unhandled R/M register encoding");
}
OperandEncoding RecognizableInstr::roRegisterEncodingFromString
(const std::string &s,
bool hasOpSizePrefix) {
ENCODING("GR16", ENCODING_REG)
ENCODING("GR32", ENCODING_REG)
ENCODING("GR64", ENCODING_REG)
ENCODING("GR8", ENCODING_REG)
ENCODING("VR128", ENCODING_REG)
ENCODING("FR64", ENCODING_REG)
ENCODING("FR32", ENCODING_REG)
ENCODING("VR64", ENCODING_REG)
ENCODING("SEGMENT_REG", ENCODING_REG)
ENCODING("DEBUG_REG", ENCODING_REG)
ENCODING("CONTROL_REG", ENCODING_REG)
ENCODING("VR256", ENCODING_REG)
errs() << "Unhandled reg/opcode register encoding " << s << "\n";
llvm_unreachable("Unhandled reg/opcode register encoding");
}
OperandEncoding RecognizableInstr::vvvvRegisterEncodingFromString
(const std::string &s,
bool hasOpSizePrefix) {
ENCODING("GR32", ENCODING_VVVV)
ENCODING("GR64", ENCODING_VVVV)
ENCODING("FR32", ENCODING_VVVV)
ENCODING("FR64", ENCODING_VVVV)
ENCODING("VR128", ENCODING_VVVV)
ENCODING("VR256", ENCODING_VVVV)
errs() << "Unhandled VEX.vvvv register encoding " << s << "\n";
llvm_unreachable("Unhandled VEX.vvvv register encoding");
}
OperandEncoding RecognizableInstr::memoryEncodingFromString
(const std::string &s,
bool hasOpSizePrefix) {
ENCODING("i16mem", ENCODING_RM)
ENCODING("i32mem", ENCODING_RM)
ENCODING("i64mem", ENCODING_RM)
ENCODING("i8mem", ENCODING_RM)
ENCODING("ssmem", ENCODING_RM)
ENCODING("sdmem", ENCODING_RM)
ENCODING("f128mem", ENCODING_RM)
ENCODING("f256mem", ENCODING_RM)
ENCODING("f64mem", ENCODING_RM)
ENCODING("f32mem", ENCODING_RM)
ENCODING("i128mem", ENCODING_RM)
ENCODING("i256mem", ENCODING_RM)
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ENCODING("f80mem", ENCODING_RM)
ENCODING("lea32mem", ENCODING_RM)
ENCODING("lea64_32mem", ENCODING_RM)
ENCODING("lea64mem", ENCODING_RM)
ENCODING("opaque32mem", ENCODING_RM)
ENCODING("opaque48mem", ENCODING_RM)
ENCODING("opaque80mem", ENCODING_RM)
ENCODING("opaque512mem", ENCODING_RM)
errs() << "Unhandled memory encoding " << s << "\n";
llvm_unreachable("Unhandled memory encoding");
}
OperandEncoding RecognizableInstr::relocationEncodingFromString
(const std::string &s,
bool hasOpSizePrefix) {
if(!hasOpSizePrefix) {
// For instructions without an OpSize prefix, a declared 16-bit register or
// immediate encoding is special.
ENCODING("i16imm", ENCODING_IW)
}
ENCODING("i16imm", ENCODING_Iv)
ENCODING("i16i8imm", ENCODING_IB)
ENCODING("i32imm", ENCODING_Iv)
ENCODING("i32i8imm", ENCODING_IB)
ENCODING("i64i32imm", ENCODING_ID)
ENCODING("i64i8imm", ENCODING_IB)
ENCODING("i8imm", ENCODING_IB)
ENCODING("i64i32imm_pcrel", ENCODING_ID)
ENCODING("i16imm_pcrel", ENCODING_IW)
ENCODING("i32imm_pcrel", ENCODING_ID)
ENCODING("brtarget", ENCODING_Iv)
ENCODING("brtarget8", ENCODING_IB)
ENCODING("i64imm", ENCODING_IO)
ENCODING("offset8", ENCODING_Ia)
ENCODING("offset16", ENCODING_Ia)
ENCODING("offset32", ENCODING_Ia)
ENCODING("offset64", ENCODING_Ia)
errs() << "Unhandled relocation encoding " << s << "\n";
llvm_unreachable("Unhandled relocation encoding");
}
OperandEncoding RecognizableInstr::opcodeModifierEncodingFromString
(const std::string &s,
bool hasOpSizePrefix) {
ENCODING("RST", ENCODING_I)
ENCODING("GR32", ENCODING_Rv)
ENCODING("GR64", ENCODING_RO)
ENCODING("GR16", ENCODING_Rv)
ENCODING("GR8", ENCODING_RB)
Craig Topper
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ENCODING("GR16_NOAX", ENCODING_Rv)
ENCODING("GR32_NOAX", ENCODING_Rv)
ENCODING("GR64_NOAX", ENCODING_RO)
errs() << "Unhandled opcode modifier encoding " << s << "\n";
llvm_unreachable("Unhandled opcode modifier encoding");
}
