#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
-#include "llvm/TableGen/TableGenBackend.h"
#include <map>
using namespace llvm;
using namespace X86Disassembler;
+/// stringForContext - Returns a string containing the name of a particular
+/// InstructionContext, usually for diagnostic purposes.
+///
+/// @param insnContext - The instruction class to transform to a string.
+/// @return - A statically-allocated string constant that contains the
+/// name of the instruction class.
+static inline const char* stringForContext(InstructionContext insnContext) {
+ switch (insnContext) {
+ default:
+ llvm_unreachable("Unhandled instruction class");
+#define ENUM_ENTRY(n, r, d) case n: return #n; break;
+#define ENUM_ENTRY_K_B(n, r, d) ENUM_ENTRY(n, r, d) ENUM_ENTRY(n##_K_B, r, d)\
+ ENUM_ENTRY(n##_KZ, r, d) ENUM_ENTRY(n##_K, r, d) ENUM_ENTRY(n##_B, r, d)\
+ ENUM_ENTRY(n##_KZ_B, r, d)
+ INSTRUCTION_CONTEXTS
+#undef ENUM_ENTRY
+#undef ENUM_ENTRY_K_B
+ }
+}
+
+/// stringForOperandType - Like stringForContext, but for OperandTypes.
+static inline const char* stringForOperandType(OperandType type) {
+ switch (type) {
+ default:
+ llvm_unreachable("Unhandled type");
+#define ENUM_ENTRY(i, d) case i: return #i;
+ TYPES
+#undef ENUM_ENTRY
+ }
+}
+
+/// stringForOperandEncoding - like stringForContext, but for
+/// OperandEncodings.
+static inline const char* stringForOperandEncoding(OperandEncoding encoding) {
+ switch (encoding) {
+ default:
+ llvm_unreachable("Unhandled encoding");
+#define ENUM_ENTRY(i, d) case i: return #i;
+ ENCODINGS
+#undef ENUM_ENTRY
+ }
+}
+
/// inheritsFrom - Indicates whether all instructions in one class also belong
/// to another class.
///
/// @return - True if child is a subset of parent, false otherwise.
static inline bool inheritsFrom(InstructionContext child,
InstructionContext parent,
- bool VEX_LIG = false) {
+ bool VEX_LIG = false, bool AdSize64 = false) {
if (child == parent)
return true;
switch (parent) {
case IC:
- return(inheritsFrom(child, IC_64BIT) ||
+ return(inheritsFrom(child, IC_64BIT, AdSize64) ||
inheritsFrom(child, IC_OPSIZE) ||
inheritsFrom(child, IC_ADSIZE) ||
inheritsFrom(child, IC_XD) ||
case IC_64BIT:
return(inheritsFrom(child, IC_64BIT_REXW) ||
inheritsFrom(child, IC_64BIT_OPSIZE) ||
- inheritsFrom(child, IC_64BIT_ADSIZE) ||
+ (!AdSize64 && inheritsFrom(child, IC_64BIT_ADSIZE)) ||
inheritsFrom(child, IC_64BIT_XD) ||
inheritsFrom(child, IC_64BIT_XS));
case IC_OPSIZE:
- return inheritsFrom(child, IC_64BIT_OPSIZE);
+ return inheritsFrom(child, IC_64BIT_OPSIZE) ||
+ inheritsFrom(child, IC_OPSIZE_ADSIZE);
case IC_ADSIZE:
+ return inheritsFrom(child, IC_OPSIZE_ADSIZE);
+ case IC_OPSIZE_ADSIZE:
+ return false;
case IC_64BIT_ADSIZE:
+ return inheritsFrom(child, IC_64BIT_OPSIZE_ADSIZE);
+ case IC_64BIT_OPSIZE_ADSIZE:
return false;
case IC_XD:
return inheritsFrom(child, IC_64BIT_XD);
case IC_64BIT_REXW:
return(inheritsFrom(child, IC_64BIT_REXW_XS) ||
inheritsFrom(child, IC_64BIT_REXW_XD) ||
- inheritsFrom(child, IC_64BIT_REXW_OPSIZE));
+ inheritsFrom(child, IC_64BIT_REXW_OPSIZE) ||
+ (!AdSize64 && inheritsFrom(child, IC_64BIT_REXW_ADSIZE)));
case IC_64BIT_OPSIZE:
- return(inheritsFrom(child, IC_64BIT_REXW_OPSIZE));
+ return inheritsFrom(child, IC_64BIT_REXW_OPSIZE) ||
+ (!AdSize64 && inheritsFrom(child, IC_64BIT_OPSIZE_ADSIZE)) ||
+ (!AdSize64 && inheritsFrom(child, IC_64BIT_REXW_ADSIZE));
case IC_64BIT_XD:
return(inheritsFrom(child, IC_64BIT_REXW_XD));
case IC_64BIT_XS:
case IC_64BIT_REXW_XD:
case IC_64BIT_REXW_XS:
case IC_64BIT_REXW_OPSIZE:
+ case IC_64BIT_REXW_ADSIZE:
return false;
case IC_VEX:
return (VEX_LIG && inheritsFrom(child, IC_VEX_L_W)) ||
case IC_EVEX_OPSIZE:
return inheritsFrom(child, IC_EVEX_W_OPSIZE) ||
inheritsFrom(child, IC_EVEX_L_W_OPSIZE);
+ case IC_EVEX_B:
+ return false;
case IC_EVEX_W:
case IC_EVEX_W_XS:
case IC_EVEX_W_XD:
case IC_EVEX_W_OPSIZE:
return false;
case IC_EVEX_L:
+ case IC_EVEX_L_K_B:
+ case IC_EVEX_L_KZ_B:
+ case IC_EVEX_L_B:
case IC_EVEX_L_XS:
case IC_EVEX_L_XD:
case IC_EVEX_L_OPSIZE:
return inheritsFrom(child, IC_EVEX_W_K) ||
inheritsFrom(child, IC_EVEX_L_W_K);
case IC_EVEX_XS_K:
+ case IC_EVEX_XS_K_B:
+ case IC_EVEX_XS_KZ_B:
return inheritsFrom(child, IC_EVEX_W_XS_K) ||
inheritsFrom(child, IC_EVEX_L_W_XS_K);
case IC_EVEX_XD_K:
+ case IC_EVEX_XD_K_B:
+ case IC_EVEX_XD_KZ_B:
return inheritsFrom(child, IC_EVEX_W_XD_K) ||
inheritsFrom(child, IC_EVEX_L_W_XD_K);
+ case IC_EVEX_XS_B:
+ case IC_EVEX_XD_B:
+ case IC_EVEX_K_B:
+ case IC_EVEX_KZ:
+ return false;
+ case IC_EVEX_XS_KZ:
+ return inheritsFrom(child, IC_EVEX_W_XS_KZ) ||
+ inheritsFrom(child, IC_EVEX_L_W_XS_KZ);
+ case IC_EVEX_XD_KZ:
+ return inheritsFrom(child, IC_EVEX_W_XD_KZ) ||
+ inheritsFrom(child, IC_EVEX_L_W_XD_KZ);
+ case IC_EVEX_KZ_B:
case IC_EVEX_OPSIZE_K:
- return inheritsFrom(child, IC_EVEX_W_OPSIZE_K) ||
- inheritsFrom(child, IC_EVEX_W_OPSIZE_K);
+ case IC_EVEX_OPSIZE_B:
+ case IC_EVEX_OPSIZE_K_B:
+ case IC_EVEX_OPSIZE_KZ:
+ case IC_EVEX_OPSIZE_KZ_B:
+ return false;
case IC_EVEX_W_K:
+ case IC_EVEX_W_B:
+ case IC_EVEX_W_K_B:
+ case IC_EVEX_W_KZ_B:
case IC_EVEX_W_XS_K:
case IC_EVEX_W_XD_K:
case IC_EVEX_W_OPSIZE_K:
+ case IC_EVEX_W_OPSIZE_B:
+ case IC_EVEX_W_OPSIZE_K_B:
return false;
case IC_EVEX_L_K:
case IC_EVEX_L_XS_K:
case IC_EVEX_L_XD_K:
+ case IC_EVEX_L_XD_B:
+ case IC_EVEX_L_XD_K_B:
case IC_EVEX_L_OPSIZE_K:
+ case IC_EVEX_L_OPSIZE_B:
+ case IC_EVEX_L_OPSIZE_K_B:
return false;
case IC_EVEX_W_KZ:
case IC_EVEX_W_XS_KZ:
case IC_EVEX_W_XD_KZ:
+ case IC_EVEX_W_XS_B:
+ case IC_EVEX_W_XD_B:
+ case IC_EVEX_W_XS_K_B:
+ case IC_EVEX_W_XD_K_B:
+ case IC_EVEX_W_XS_KZ_B:
+ case IC_EVEX_W_XD_KZ_B:
case IC_EVEX_W_OPSIZE_KZ:
+ case IC_EVEX_W_OPSIZE_KZ_B:
return false;
case IC_EVEX_L_KZ:
case IC_EVEX_L_XS_KZ:
+ case IC_EVEX_L_XS_B:
+ case IC_EVEX_L_XS_K_B:
+ case IC_EVEX_L_XS_KZ_B:
case IC_EVEX_L_XD_KZ:
+ case IC_EVEX_L_XD_KZ_B:
case IC_EVEX_L_OPSIZE_KZ:
+ case IC_EVEX_L_OPSIZE_KZ_B:
return false;
case IC_EVEX_L_W_K:
+ case IC_EVEX_L_W_B:
+ case IC_EVEX_L_W_K_B:
case IC_EVEX_L_W_XS_K:
- case IC_EVEX_L_W_XD_K:
+ case IC_EVEX_L_W_XS_B:
+ case IC_EVEX_L_W_XS_K_B:
+ case IC_EVEX_L_W_XS_KZ:
+ case IC_EVEX_L_W_XS_KZ_B:
case IC_EVEX_L_W_OPSIZE_K:
+ case IC_EVEX_L_W_OPSIZE_B:
+ case IC_EVEX_L_W_OPSIZE_K_B:
case IC_EVEX_L_W_KZ:
- case IC_EVEX_L_W_XS_KZ:
+ case IC_EVEX_L_W_KZ_B:
+ case IC_EVEX_L_W_XD_K:
+ case IC_EVEX_L_W_XD_B:
+ case IC_EVEX_L_W_XD_K_B:
case IC_EVEX_L_W_XD_KZ:
+ case IC_EVEX_L_W_XD_KZ_B:
case IC_EVEX_L_W_OPSIZE_KZ:
+ case IC_EVEX_L_W_OPSIZE_KZ_B:
return false;
case IC_EVEX_L2_K:
case IC_EVEX_L2_B:
+ case IC_EVEX_L2_K_B:
+ case IC_EVEX_L2_KZ_B:
case IC_EVEX_L2_XS_K:
+ case IC_EVEX_L2_XS_K_B:
+ case IC_EVEX_L2_XS_B:
+ case IC_EVEX_L2_XD_B:
case IC_EVEX_L2_XD_K:
+ case IC_EVEX_L2_XD_K_B:
case IC_EVEX_L2_OPSIZE_K:
case IC_EVEX_L2_OPSIZE_B:
case IC_EVEX_L2_OPSIZE_K_B:
case IC_EVEX_L2_KZ:
case IC_EVEX_L2_XS_KZ:
+ case IC_EVEX_L2_XS_KZ_B:
case IC_EVEX_L2_XD_KZ:
+ case IC_EVEX_L2_XD_KZ_B:
case IC_EVEX_L2_OPSIZE_KZ:
case IC_EVEX_L2_OPSIZE_KZ_B:
return false;
case IC_EVEX_L2_W_K:
case IC_EVEX_L2_W_B:
+ case IC_EVEX_L2_W_K_B:
+ case IC_EVEX_L2_W_KZ_B:
case IC_EVEX_L2_W_XS_K:
+ case IC_EVEX_L2_W_XS_B:
+ case IC_EVEX_L2_W_XS_K_B:
case IC_EVEX_L2_W_XD_K:
+ case IC_EVEX_L2_W_XD_B:
case IC_EVEX_L2_W_OPSIZE_K:
case IC_EVEX_L2_W_OPSIZE_B:
case IC_EVEX_L2_W_OPSIZE_K_B:
case IC_EVEX_L2_W_KZ:
case IC_EVEX_L2_W_XS_KZ:
+ case IC_EVEX_L2_W_XS_KZ_B:
case IC_EVEX_L2_W_XD_KZ:
+ case IC_EVEX_L2_W_XD_K_B:
+ case IC_EVEX_L2_W_XD_KZ_B:
case IC_EVEX_L2_W_OPSIZE_KZ:
case IC_EVEX_L2_W_OPSIZE_KZ_B:
return false;
default:
+ errs() << "Unknown instruction class: " <<
+ stringForContext((InstructionContext)parent) << "\n";
llvm_unreachable("Unknown instruction class");
}
}
return (ranks[upper] > ranks[lower]);
}
-/// stringForContext - Returns a string containing the name of a particular
-/// InstructionContext, usually for diagnostic purposes.
-///
-/// @param insnContext - The instruction class to transform to a string.
-/// @return - A statically-allocated string constant that contains the
-/// name of the instruction class.
-static inline const char* stringForContext(InstructionContext insnContext) {
- switch (insnContext) {
- default:
- llvm_unreachable("Unhandled instruction class");
-#define ENUM_ENTRY(n, r, d) case n: return #n; break;
-#define ENUM_ENTRY_K_B(n, r, d) ENUM_ENTRY(n, r, d) ENUM_ENTRY(n##_K_B, r, d)\
- ENUM_ENTRY(n##_KZ, r, d) ENUM_ENTRY(n##_K, r, d) ENUM_ENTRY(n##_B, r, d)\
- ENUM_ENTRY(n##_KZ_B, r, d)
- INSTRUCTION_CONTEXTS
-#undef ENUM_ENTRY
-#undef ENUM_ENTRY_K_B
- }
-}
-
-/// stringForOperandType - Like stringForContext, but for OperandTypes.
-static inline const char* stringForOperandType(OperandType type) {
- switch (type) {
- default:
- llvm_unreachable("Unhandled type");
-#define ENUM_ENTRY(i, d) case i: return #i;
- TYPES
-#undef ENUM_ENTRY
- }
-}
-
-/// stringForOperandEncoding - like stringForContext, but for
-/// OperandEncodings.
-static inline const char* stringForOperandEncoding(OperandEncoding encoding) {
- switch (encoding) {
- default:
- llvm_unreachable("Unhandled encoding");
-#define ENUM_ENTRY(i, d) case i: return #i;
- ENCODINGS
-#undef ENUM_ENTRY
- }
-}
-
/// getDecisionType - Determines whether a ModRM decision with 255 entries can
/// be compacted by eliminating redundant information.
///
#undef ENUM_ENTRY
}
-/// stringForModifierType - Returns a statically-allocated string corresponding
-/// to an opcode modifier type.
-///
-/// @param mt - The modifier type.
-/// @return - A pointer to the statically-allocated string (e.g.,
-/// "MODIFIER_NONE" for MODIFIER_NONE).
-static const char* stringForModifierType(ModifierType mt) {
-#define ENUM_ENTRY(n) case n: return #n;
- switch(mt) {
- default:
- llvm_unreachable("Unknown modifier type");
- MODIFIER_TYPES
- };
-#undef ENUM_ENTRY
-}
-
DisassemblerTables::DisassemblerTables() {
unsigned i;
o << "static const struct OperandSpecifier x86OperandSets[]["
<< X86_MAX_OPERANDS << "] = {\n";
- typedef std::vector<std::pair<const char *, const char *> > OperandListTy;
+ typedef SmallVector<std::pair<OperandEncoding, OperandType>,
+ X86_MAX_OPERANDS> OperandListTy;
std::map<OperandListTy, unsigned> OperandSets;
unsigned OperandSetNum = 0;
for (unsigned OperandIndex = 0; OperandIndex < X86_MAX_OPERANDS;
++OperandIndex) {
- const char *Encoding =
- stringForOperandEncoding((OperandEncoding)InstructionSpecifiers[Index]
- .operands[OperandIndex].encoding);
- const char *Type =
- stringForOperandType((OperandType)InstructionSpecifiers[Index]
- .operands[OperandIndex].type);
+ OperandEncoding Encoding = (OperandEncoding)InstructionSpecifiers[Index]
+ .operands[OperandIndex].encoding;
+ OperandType Type = (OperandType)InstructionSpecifiers[Index]
+ .operands[OperandIndex].type;
OperandList.push_back(std::make_pair(Encoding, Type));
}
unsigned &N = OperandSets[OperandList];
o << " { /* " << (OperandSetNum - 1) << " */\n";
for (unsigned i = 0, e = OperandList.size(); i != e; ++i) {
- o << " { " << OperandList[i].first << ", "
- << OperandList[i].second << " },\n";
+ const char *Encoding = stringForOperandEncoding(OperandList[i].first);
+ const char *Type = stringForOperandType(OperandList[i].second);
+ o << " { " << Encoding << ", " << Type << " },\n";
}
o << " },\n";
}
i++;
for (unsigned index = 0; index < NumInstructions; ++index) {
- o.indent(i * 2) << "{ /* " << index << " */" << "\n";
+ o.indent(i * 2) << "{ /* " << index << " */\n";
i++;
- o.indent(i * 2) << stringForModifierType(
- (ModifierType)InstructionSpecifiers[index].modifierType);
- o << ",\n";
-
- o.indent(i * 2) << "0x";
- o << format("%02hhx", (uint16_t)InstructionSpecifiers[index].modifierBase);
- o << ",\n";
-
OperandListTy OperandList;
for (unsigned OperandIndex = 0; OperandIndex < X86_MAX_OPERANDS;
++OperandIndex) {
- const char *Encoding =
- stringForOperandEncoding((OperandEncoding)InstructionSpecifiers[index]
- .operands[OperandIndex].encoding);
- const char *Type =
- stringForOperandType((OperandType)InstructionSpecifiers[index]
- .operands[OperandIndex].type);
+ OperandEncoding Encoding = (OperandEncoding)InstructionSpecifiers[index]
+ .operands[OperandIndex].encoding;
+ OperandType Type = (OperandType)InstructionSpecifiers[index]
+ .operands[OperandIndex].type;
OperandList.push_back(std::make_pair(Encoding, Type));
}
o.indent(i * 2) << (OperandSets[OperandList] - 1) << ",\n";
- o.indent(i * 2) << "/* " << InstructionSpecifiers[index].name << " */";
- o << "\n";
+ o.indent(i * 2) << "/* " << InstructionSpecifiers[index].name << " */\n";
i--;
- o.indent(i * 2) << "}";
-
- if (index + 1 < NumInstructions)
- o << ",";
-
- o << "\n";
+ o.indent(i * 2) << "},\n";
}
i--;
else if ((index & ATTR_64BIT) && (index & ATTR_REXW) &&
(index & ATTR_OPSIZE))
o << "IC_64BIT_REXW_OPSIZE";
+ else if ((index & ATTR_64BIT) && (index & ATTR_REXW) &&
+ (index & ATTR_ADSIZE))
+ o << "IC_64BIT_REXW_ADSIZE";
else if ((index & ATTR_64BIT) && (index & ATTR_XD) && (index & ATTR_OPSIZE))
o << "IC_64BIT_XD_OPSIZE";
else if ((index & ATTR_64BIT) && (index & ATTR_XS) && (index & ATTR_OPSIZE))
o << "IC_64BIT_XS";
else if ((index & ATTR_64BIT) && (index & ATTR_XD))
o << "IC_64BIT_XD";
+ else if ((index & ATTR_64BIT) && (index & ATTR_OPSIZE) &&
+ (index & ATTR_ADSIZE))
+ o << "IC_64BIT_OPSIZE_ADSIZE";
else if ((index & ATTR_64BIT) && (index & ATTR_OPSIZE))
o << "IC_64BIT_OPSIZE";
else if ((index & ATTR_64BIT) && (index & ATTR_ADSIZE))
o << "IC_XS";
else if (index & ATTR_XD)
o << "IC_XD";
+ else if ((index & ATTR_OPSIZE) && (index & ATTR_ADSIZE))
+ o << "IC_OPSIZE_ADSIZE";
else if (index & ATTR_OPSIZE)
o << "IC_OPSIZE";
else if (index & ATTR_ADSIZE)
emitContextDecision(o1, o2, i1, i2, ModRMTableNum, *Tables[1], TWOBYTE_STR);
emitContextDecision(o1, o2, i1, i2, ModRMTableNum, *Tables[2], THREEBYTE38_STR);
emitContextDecision(o1, o2, i1, i2, ModRMTableNum, *Tables[3], THREEBYTE3A_STR);
- emitContextDecision(o1, o2, i1, i2, ModRMTableNum, *Tables[4], THREEBYTEA6_STR);
- emitContextDecision(o1, o2, i1, i2, ModRMTableNum, *Tables[5], THREEBYTEA7_STR);
- emitContextDecision(o1, o2, i1, i2, ModRMTableNum, *Tables[6], XOP8_MAP_STR);
- emitContextDecision(o1, o2, i1, i2, ModRMTableNum, *Tables[7], XOP9_MAP_STR);
- emitContextDecision(o1, o2, i1, i2, ModRMTableNum, *Tables[8], XOPA_MAP_STR);
+ emitContextDecision(o1, o2, i1, i2, ModRMTableNum, *Tables[4], XOP8_MAP_STR);
+ emitContextDecision(o1, o2, i1, i2, ModRMTableNum, *Tables[5], XOP9_MAP_STR);
+ emitContextDecision(o1, o2, i1, i2, ModRMTableNum, *Tables[6], XOPA_MAP_STR);
}
void DisassemblerTables::emit(raw_ostream &o) const {
InstructionSpecifier &previousInfo =
InstructionSpecifiers[decision.instructionIDs[index]];
- if(newInfo.filtered)
- continue; // filtered instructions get lowest priority
-
if(previousInfo.name == "NOOP" && (newInfo.name == "XCHG16ar" ||
newInfo.name == "XCHG32ar" ||
newInfo.name == "XCHG32ar64" ||
if (outranks(previousInfo.insnContext, newInfo.insnContext))
continue;
- if (previousInfo.insnContext == newInfo.insnContext &&
- !previousInfo.filtered) {
+ if (previousInfo.insnContext == newInfo.insnContext) {
errs() << "Error: Primary decode conflict: ";
errs() << newInfo.name << " would overwrite " << previousInfo.name;
errs() << "\n";
const ModRMFilter &filter,
InstrUID uid,
bool is32bit,
- bool ignoresVEX_L) {
+ bool ignoresVEX_L,
+ unsigned addressSize) {
ContextDecision &decision = *Tables[type];
for (unsigned index = 0; index < IC_max; ++index) {
- if (is32bit && inheritsFrom((InstructionContext)index, IC_64BIT))
+ if ((is32bit || addressSize == 16) &&
+ inheritsFrom((InstructionContext)index, IC_64BIT))
continue;
+ bool adSize64 = addressSize == 64;
if (inheritsFrom((InstructionContext)index,
- InstructionSpecifiers[uid].insnContext, ignoresVEX_L))
+ InstructionSpecifiers[uid].insnContext, ignoresVEX_L,
+ adSize64))
setTableFields(decision.opcodeDecisions[index].modRMDecisions[opcode],
filter,
uid,
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