-#include "Record.h"
-#include "Support/CommandLine.h"
+//===- TableGen.cpp - Top-Level TableGen implementation -------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// TableGen is a tool which can be used to build up a description of something,
+// then invoke one or more "tablegen backends" to emit information about the
+// description in some predefined format. In practice, this is used by the LLVM
+// code generators to automate generation of a code generator through a
+// high-level description of the target.
+//
+//===----------------------------------------------------------------------===//
+
+#include "AsmMatcherEmitter.h"
+#include "AsmWriterEmitter.h"
+#include "CallingConvEmitter.h"
+#include "ClangASTNodesEmitter.h"
+#include "ClangAttrEmitter.h"
+#include "ClangDiagnosticsEmitter.h"
#include "CodeEmitterGen.h"
+#include "DAGISelEmitter.h"
+#include "DisassemblerEmitter.h"
+#include "EDEmitter.h"
+#include "FastISelEmitter.h"
+#include "InstrEnumEmitter.h"
+#include "InstrInfoEmitter.h"
+#include "IntrinsicEmitter.h"
+#include "LLVMCConfigurationEmitter.h"
+#include "NeonEmitter.h"
+#include "OptParserEmitter.h"
+#include "Record.h"
+#include "RegisterInfoEmitter.h"
+#include "ARMDecoderEmitter.h"
+#include "SubtargetEmitter.h"
+#include "TGParser.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/System/Signals.h"
#include <algorithm>
+#include <cstdio>
+using namespace llvm;
+
+enum ActionType {
+ PrintRecords,
+ GenEmitter,
+ GenRegisterEnums, GenRegister, GenRegisterHeader,
+ GenInstrEnums, GenInstrs, GenAsmWriter, GenAsmMatcher,
+ GenARMDecoder,
+ GenDisassembler,
+ GenCallingConv,
+ GenClangAttrClasses,
+ GenClangAttrList,
+ GenClangDiagsDefs,
+ GenClangDiagGroups,
+ GenClangDeclNodes,
+ GenClangStmtNodes,
+ GenDAGISel,
+ GenFastISel,
+ GenOptParserDefs, GenOptParserImpl,
+ GenSubtarget,
+ GenIntrinsic,
+ GenTgtIntrinsic,
+ GenLLVMCConf,
+ GenEDInfo,
+ GenArmNeon,
+ GenArmNeonSema,
+ PrintEnums
+};
-static cl::opt<std::string> Class("class", cl::desc("Print Enum list for this class"));
-static cl::opt<bool> Parse("parse");
-static cl::opt<bool> GenEmitter("gen-emitter");
-
-void ParseFile();
-
-RecordKeeper Records;
-
-static Init *getBit(Record *R, unsigned BitNo) {
- const std::vector<RecordVal> &V = R->getValues();
- for (unsigned i = 0, e = V.size(); i != e; ++i)
- if (V[i].getPrefix()) {
- assert(dynamic_cast<BitsInit*>(V[i].getValue()) &&
- "Can only handle fields of bits<> type!");
- BitsInit *I = (BitsInit*)V[i].getValue();
- if (BitNo < I->getNumBits())
- return I->getBit(BitNo);
- BitNo -= I->getNumBits();
- }
-
- std::cerr << "Cannot find requested bit!\n";
- abort();
- return 0;
-}
-
-static unsigned getNumBits(Record *R) {
- const std::vector<RecordVal> &V = R->getValues();
- unsigned Num = 0;
- for (unsigned i = 0, e = V.size(); i != e; ++i)
- if (V[i].getPrefix()) {
- assert(dynamic_cast<BitsInit*>(V[i].getValue()) &&
- "Can only handle fields of bits<> type!");
- Num += ((BitsInit*)V[i].getValue())->getNumBits();
- }
- return Num;
-}
-
-static bool BitsAreFixed(Record *I1, Record *I2, unsigned BitNo) {
- return dynamic_cast<BitInit*>(getBit(I1, BitNo)) &&
- dynamic_cast<BitInit*>(getBit(I2, BitNo));
-}
-
-static bool BitsAreEqual(Record *I1, Record *I2, unsigned BitNo) {
- BitInit *Bit1 = dynamic_cast<BitInit*>(getBit(I1, BitNo));
- BitInit *Bit2 = dynamic_cast<BitInit*>(getBit(I2, BitNo));
-
- return Bit1 && Bit2 && Bit1->getValue() == Bit2->getValue();
-}
-
-static bool BitRangesEqual(Record *I1, Record *I2,
- unsigned Start, unsigned End) {
- for (unsigned i = Start; i != End; ++i)
- if (!BitsAreEqual(I1, I2, i))
- return false;
- return true;
-}
-
-static unsigned getFirstFixedBit(Record *R, unsigned FirstFixedBit) {
- // Look for the first bit of the pair that are required to be 0 or 1.
- while (!dynamic_cast<BitInit*>(getBit(R, FirstFixedBit)))
- ++FirstFixedBit;
- return FirstFixedBit;
-}
-
-static void FindInstDifferences(Record *I1, Record *I2,
- unsigned FirstFixedBit, unsigned MaxBits,
- unsigned &FirstVaryingBitOverall,
- unsigned &LastFixedBitOverall) {
- // Compare the first instruction to the rest of the instructions, looking for
- // fields that differ.
- //
- unsigned FirstVaryingBit = FirstFixedBit;
- while (FirstVaryingBit < MaxBits && BitsAreEqual(I1, I2, FirstVaryingBit))
- ++FirstVaryingBit;
-
- unsigned LastFixedBit = FirstVaryingBit;
- while (LastFixedBit < MaxBits && BitsAreFixed(I1, I2, LastFixedBit))
- ++LastFixedBit;
-
- if (FirstVaryingBit < FirstVaryingBitOverall)
- FirstVaryingBitOverall = FirstVaryingBit;
- if (LastFixedBit < LastFixedBitOverall)
- LastFixedBitOverall = LastFixedBit;
+namespace {
+ cl::opt<ActionType>
+ Action(cl::desc("Action to perform:"),
+ cl::values(clEnumValN(PrintRecords, "print-records",
+ "Print all records to stdout (default)"),
+ clEnumValN(GenEmitter, "gen-emitter",
+ "Generate machine code emitter"),
+ clEnumValN(GenRegisterEnums, "gen-register-enums",
+ "Generate enum values for registers"),
+ clEnumValN(GenRegister, "gen-register-desc",
+ "Generate a register info description"),
+ clEnumValN(GenRegisterHeader, "gen-register-desc-header",
+ "Generate a register info description header"),
+ clEnumValN(GenInstrEnums, "gen-instr-enums",
+ "Generate enum values for instructions"),
+ clEnumValN(GenInstrs, "gen-instr-desc",
+ "Generate instruction descriptions"),
+ clEnumValN(GenCallingConv, "gen-callingconv",
+ "Generate calling convention descriptions"),
+ clEnumValN(GenAsmWriter, "gen-asm-writer",
+ "Generate assembly writer"),
+ clEnumValN(GenARMDecoder, "gen-arm-decoder",
+ "Generate decoders for ARM/Thumb"),
+ clEnumValN(GenDisassembler, "gen-disassembler",
+ "Generate disassembler"),
+ clEnumValN(GenAsmMatcher, "gen-asm-matcher",
+ "Generate assembly instruction matcher"),
+ clEnumValN(GenDAGISel, "gen-dag-isel",
+ "Generate a DAG instruction selector"),
+ clEnumValN(GenFastISel, "gen-fast-isel",
+ "Generate a \"fast\" instruction selector"),
+ clEnumValN(GenOptParserDefs, "gen-opt-parser-defs",
+ "Generate option definitions"),
+ clEnumValN(GenOptParserImpl, "gen-opt-parser-impl",
+ "Generate option parser implementation"),
+ clEnumValN(GenSubtarget, "gen-subtarget",
+ "Generate subtarget enumerations"),
+ clEnumValN(GenIntrinsic, "gen-intrinsic",
+ "Generate intrinsic information"),
+ clEnumValN(GenTgtIntrinsic, "gen-tgt-intrinsic",
+ "Generate target intrinsic information"),
+ clEnumValN(GenClangAttrClasses, "gen-clang-attr-classes",
+ "Generate clang attribute clases"),
+ clEnumValN(GenClangAttrList, "gen-clang-attr-list",
+ "Generate a clang attribute list"),
+ clEnumValN(GenClangDiagsDefs, "gen-clang-diags-defs",
+ "Generate Clang diagnostics definitions"),
+ clEnumValN(GenClangDiagGroups, "gen-clang-diag-groups",
+ "Generate Clang diagnostic groups"),
+ clEnumValN(GenClangDeclNodes, "gen-clang-decl-nodes",
+ "Generate Clang AST statement nodes"),
+ clEnumValN(GenClangStmtNodes, "gen-clang-stmt-nodes",
+ "Generate Clang AST statement nodes"),
+ clEnumValN(GenLLVMCConf, "gen-llvmc",
+ "Generate LLVMC configuration library"),
+ clEnumValN(GenEDInfo, "gen-enhanced-disassembly-info",
+ "Generate enhanced disassembly info"),
+ clEnumValN(GenArmNeon, "gen-arm-neon",
+ "Generate arm_neon.h for clang"),
+ clEnumValN(GenArmNeonSema, "gen-arm-neon-sema",
+ "Generate ARM NEON sema support for clang"),
+ clEnumValN(PrintEnums, "print-enums",
+ "Print enum values for a class"),
+ clEnumValEnd));
+
+ cl::opt<std::string>
+ Class("class", cl::desc("Print Enum list for this class"),
+ cl::value_desc("class name"));
+
+ cl::opt<std::string>
+ OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename"),
+ cl::init("-"));
+
+ cl::opt<std::string>
+ InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
+
+ cl::list<std::string>
+ IncludeDirs("I", cl::desc("Directory of include files"),
+ cl::value_desc("directory"), cl::Prefix);
+
+ cl::opt<std::string>
+ ClangComponent("clang-component",
+ cl::desc("Only use warnings from specified component"),
+ cl::value_desc("component"), cl::Hidden);
}
-static bool getBitValue(Record *R, unsigned BitNo) {
- Init *I = getBit(R, BitNo);
- assert(dynamic_cast<BitInit*>(I) && "Bit should be fixed!");
- return ((BitInit*)I)->getValue();
-}
-struct BitComparator {
- unsigned BitBegin, BitEnd;
- BitComparator(unsigned B, unsigned E) : BitBegin(B), BitEnd(E) {}
+// FIXME: Eliminate globals from tblgen.
+RecordKeeper llvm::Records;
- bool operator()(Record *R1, Record *R2) { // Return true if R1 is less than R2
- for (unsigned i = BitBegin; i != BitEnd; ++i) {
- bool V1 = getBitValue(R1, i), V2 = getBitValue(R2, i);
- if (V1 < V2)
- return true;
- else if (V2 < V1)
- return false;
- }
- return false;
- }
-};
+static SourceMgr SrcMgr;
-static void PrintRange(std::vector<Record*>::iterator I,
- std::vector<Record*>::iterator E) {
- while (I != E) std::cerr << **I++;
+void llvm::PrintError(SMLoc ErrorLoc, const std::string &Msg) {
+ SrcMgr.PrintMessage(ErrorLoc, Msg, "error");
}
-static bool getMemoryBit(unsigned char *M, unsigned i) {
- return (M[i/8] & (1 << (i&7))) != 0;
-}
-static unsigned getFirstFixedBitInSequence(std::vector<Record*>::iterator IB,
- std::vector<Record*>::iterator IE,
- unsigned StartBit) {
- unsigned FirstFixedBit = 0;
- for (std::vector<Record*>::iterator I = IB; I != IE; ++I)
- FirstFixedBit = std::max(FirstFixedBit, getFirstFixedBit(*I, StartBit));
- return FirstFixedBit;
-}
-// ParseMachineCode - Try to split the vector of instructions (which is
-// intentially taken by-copy) in half, narrowing down the possible instructions
-// that we may have found. Eventually, this list will get pared down to zero or
-// one instruction, in which case we have a match or failure.
-//
-static Record *ParseMachineCode(std::vector<Record*>::iterator InstsB,
- std::vector<Record*>::iterator InstsE,
- unsigned char *M) {
- assert(InstsB != InstsE && "Empty range?");
- if (InstsB+1 == InstsE) {
- // Only a single instruction, see if we match it...
- Record *Inst = *InstsB;
- for (unsigned i = 0, e = getNumBits(Inst); i != e; ++i)
- if (BitInit *BI = dynamic_cast<BitInit*>(getBit(Inst, i)))
- if (getMemoryBit(M, i) != BI->getValue())
- return 0;
- return Inst;
+/// ParseFile - this function begins the parsing of the specified tablegen
+/// file.
+static bool ParseFile(const std::string &Filename,
+ const std::vector<std::string> &IncludeDirs,
+ SourceMgr &SrcMgr) {
+ std::string ErrorStr;
+ MemoryBuffer *F = MemoryBuffer::getFileOrSTDIN(Filename.c_str(), &ErrorStr);
+ if (F == 0) {
+ errs() << "Could not open input file '" << Filename << "': "
+ << ErrorStr <<"\n";
+ return true;
}
- unsigned MaxBits = ~0;
- for (std::vector<Record*>::iterator I = InstsB; I != InstsE; ++I)
- MaxBits = std::min(MaxBits, getNumBits(*I));
+ // Tell SrcMgr about this buffer, which is what TGParser will pick up.
+ SrcMgr.AddNewSourceBuffer(F, SMLoc());
- unsigned FirstFixedBit = getFirstFixedBitInSequence(InstsB, InstsE, 0);
- unsigned FirstVaryingBit, LastFixedBit;
- do {
- FirstVaryingBit = ~0;
- LastFixedBit = ~0;
- for (std::vector<Record*>::iterator I = InstsB+1; I != InstsE; ++I)
- FindInstDifferences(*InstsB, *I, FirstFixedBit, MaxBits,
- FirstVaryingBit, LastFixedBit);
- if (FirstVaryingBit == MaxBits) {
- std::cerr << "ERROR: Could not find bit to distinguish between "
- << "the following entries!\n";
- PrintRange(InstsB, InstsE);
- }
+ // Record the location of the include directory so that the lexer can find
+ // it later.
+ SrcMgr.setIncludeDirs(IncludeDirs);
-#if 0
- std::cerr << "FVB: " << FirstVaryingBit << " - " << LastFixedBit
- << ": " << InstsE-InstsB << "\n";
-#endif
+ TGParser Parser(SrcMgr);
- FirstFixedBit = getFirstFixedBitInSequence(InstsB, InstsE, FirstVaryingBit);
- } while (FirstVaryingBit != FirstFixedBit);
-
- //std::cerr << "\n\nXXXXXXXXXXXXXXXXX\n\n";
- //PrintRange(InstsB, InstsE);
+ return Parser.ParseFile();
+}
- // Sort the Insts list so that the entries have all of the bits in the range
- // [FirstVaryingBit,LastFixedBit) sorted. These bits are all guaranteed to be
- // set to either 0 or 1 (BitInit values), which simplifies things.
- //
- std::sort(InstsB, InstsE, BitComparator(FirstVaryingBit, LastFixedBit));
+int main(int argc, char **argv) {
+ sys::PrintStackTraceOnErrorSignal();
+ PrettyStackTraceProgram X(argc, argv);
+ cl::ParseCommandLineOptions(argc, argv);
- // Once the list is sorted by these bits, split the bit list into smaller
- // lists, and recurse on each one.
- //
- std::vector<Record*>::iterator RangeBegin = InstsB;
- Record *Match = 0;
- while (RangeBegin != InstsE) {
- std::vector<Record*>::iterator RangeEnd = RangeBegin+1;
- while (RangeEnd != InstsE &&
- BitRangesEqual(*RangeBegin, *RangeEnd, FirstVaryingBit, LastFixedBit))
- ++RangeEnd;
-
- // We just identified a range of equal instructions. If this range is the
- // input range, we were not able to distinguish between the instructions in
- // the set. Print an error and exit!
- //
- if (RangeBegin == InstsB && RangeEnd == InstsE) {
- std::cerr << "Error: Could not distinguish among the following insts!:\n";
- PrintRange(InstsB, InstsE);
- abort();
- }
-
-#if 0
- std::cerr << "FVB: " << FirstVaryingBit << " - " << LastFixedBit
- << ": [" << RangeEnd-RangeBegin << "] - ";
- for (int i = LastFixedBit-1; i >= (int)FirstVaryingBit; --i)
- std::cerr << (int)((BitInit*)getBit(*RangeBegin, i))->getValue() << " ";
- std::cerr << "\n";
-#endif
- if (Record *R = ParseMachineCode(RangeBegin, RangeEnd, M)) {
- if (Match) {
- std::cerr << "Error: Multiple matches found:\n";
- PrintRange(InstsB, InstsE);
- }
+ // Parse the input file.
+ if (ParseFile(InputFilename, IncludeDirs, SrcMgr))
+ return 1;
- assert(Match == 0 && "Multiple matches??");
- Match = R;
- }
- RangeBegin = RangeEnd;
+ std::string Error;
+ raw_fd_ostream Out(OutputFilename.c_str(), Error);
+ if (!Error.empty()) {
+ errs() << argv[0] << ": error opening " << OutputFilename
+ << ":" << Error << "\n";
+ return 1;
}
- return Match;
-}
-
-static void PrintValue(Record *I, unsigned char *Ptr, const RecordVal &Val) {
- assert(dynamic_cast<BitsInit*>(Val.getValue()) &&
- "Can only handle undefined bits<> types!");
- BitsInit *BI = (BitsInit*)Val.getValue();
- assert(BI->getNumBits() <= 32 && "Can only handle fields up to 32 bits!");
-
- unsigned Value = 0;
- const std::vector<RecordVal> &Vals = I->getValues();
-
- // Start by filling in fixed values...
- for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i)
- if (BitInit *B = dynamic_cast<BitInit*>(BI->getBit(i)))
- Value |= B->getValue() << i;
-
- // Loop over all of the fields in the instruction adding in any
- // contributions to this value (due to bit references).
- //
- unsigned Offset = 0;
- for (unsigned f = 0, e = Vals.size(); f != e; ++f)
- if (Vals[f].getPrefix()) {
- BitsInit *FieldInitializer = (BitsInit*)Vals[f].getValue();
- if (&Vals[f] == &Val) {
- // Read the bits directly now...
- for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i)
- Value |= getMemoryBit(Ptr, Offset+i) << i;
- break;
- }
-
- // Scan through the field looking for bit initializers of the current
- // variable...
- for (unsigned i = 0, e = FieldInitializer->getNumBits(); i != e; ++i)
- if (VarBitInit *VBI =
- dynamic_cast<VarBitInit*>(FieldInitializer->getBit(i))) {
- TypedInit *TI = VBI->getVariable();
- if (VarInit *VI = dynamic_cast<VarInit*>(TI)) {
- if (VI->getName() == Val.getName())
- Value |= getMemoryBit(Ptr, Offset+i) << VBI->getBitNum();
- } else if (FieldInit *FI = dynamic_cast<FieldInit*>(TI)) {
- // FIXME: implement this!
- std::cerr << "FIELD INIT not implemented yet!\n";
- }
- }
- Offset += FieldInitializer->getNumBits();
+ // Make sure the file gets removed if *gasp* tablegen crashes...
+ sys::RemoveFileOnSignal(sys::Path(OutputFilename));
+
+ try {
+ switch (Action) {
+ case PrintRecords:
+ Out << Records; // No argument, dump all contents
+ break;
+ case GenEmitter:
+ CodeEmitterGen(Records).run(Out);
+ break;
+
+ case GenRegisterEnums:
+ RegisterInfoEmitter(Records).runEnums(Out);
+ break;
+ case GenRegister:
+ RegisterInfoEmitter(Records).run(Out);
+ break;
+ case GenRegisterHeader:
+ RegisterInfoEmitter(Records).runHeader(Out);
+ break;
+ case GenInstrEnums:
+ InstrEnumEmitter(Records).run(Out);
+ break;
+ case GenInstrs:
+ InstrInfoEmitter(Records).run(Out);
+ break;
+ case GenCallingConv:
+ CallingConvEmitter(Records).run(Out);
+ break;
+ case GenAsmWriter:
+ AsmWriterEmitter(Records).run(Out);
+ break;
+ case GenARMDecoder:
+ ARMDecoderEmitter(Records).run(Out);
+ break;
+ case GenAsmMatcher:
+ AsmMatcherEmitter(Records).run(Out);
+ break;
+ case GenClangAttrClasses:
+ ClangAttrClassEmitter(Records).run(Out);
+ break;
+ case GenClangAttrList:
+ ClangAttrListEmitter(Records).run(Out);
+ break;
+ case GenClangDiagsDefs:
+ ClangDiagsDefsEmitter(Records, ClangComponent).run(Out);
+ break;
+ case GenClangDiagGroups:
+ ClangDiagGroupsEmitter(Records).run(Out);
+ break;
+ case GenClangDeclNodes:
+ ClangASTNodesEmitter(Records, "Decl", "Decl").run(Out);
+ ClangDeclContextEmitter(Records).run(Out);
+ break;
+ case GenClangStmtNodes:
+ ClangASTNodesEmitter(Records, "Stmt", "").run(Out);
+ break;
+ case GenDisassembler:
+ DisassemblerEmitter(Records).run(Out);
+ break;
+ case GenOptParserDefs:
+ OptParserEmitter(Records, true).run(Out);
+ break;
+ case GenOptParserImpl:
+ OptParserEmitter(Records, false).run(Out);
+ break;
+ case GenDAGISel:
+ DAGISelEmitter(Records).run(Out);
+ break;
+ case GenFastISel:
+ FastISelEmitter(Records).run(Out);
+ break;
+ case GenSubtarget:
+ SubtargetEmitter(Records).run(Out);
+ break;
+ case GenIntrinsic:
+ IntrinsicEmitter(Records).run(Out);
+ break;
+ case GenTgtIntrinsic:
+ IntrinsicEmitter(Records, true).run(Out);
+ break;
+ case GenLLVMCConf:
+ LLVMCConfigurationEmitter(Records).run(Out);
+ break;
+ case GenEDInfo:
+ EDEmitter(Records).run(Out);
+ break;
+ case GenArmNeon:
+ NeonEmitter(Records).run(Out);
+ break;
+ case GenArmNeonSema:
+ NeonEmitter(Records).runHeader(Out);
+ break;
+ case PrintEnums:
+ {
+ std::vector<Record*> Recs = Records.getAllDerivedDefinitions(Class);
+ for (unsigned i = 0, e = Recs.size(); i != e; ++i)
+ Out << Recs[i]->getName() << ", ";
+ Out << "\n";
+ break;
}
-
- std::cout << "0x" << std::hex << Value << std::dec;
-}
-
-static void PrintInstruction(Record *I, unsigned char *Ptr) {
- std::cout << "Inst " << getNumBits(I)/8 << " bytes: "
- << "\t" << I->getName() << "\t" << *I->getValue("Name")->getValue()
- << "\t";
-
- const std::vector<RecordVal> &Vals = I->getValues();
- for (unsigned i = 0, e = Vals.size(); i != e; ++i)
- if (!Vals[i].getValue()->isComplete()) {
- std::cout << Vals[i].getName() << "=";
- PrintValue(I, Ptr, Vals[i]);
- std::cout << "\t";
+ default:
+ assert(1 && "Invalid Action");
+ return 1;
}
-
- std::cout << "\n";// << *I;
-}
-
-static void ParseMachineCode() {
- // X86 code
- unsigned char Buffer[] = {
- 0x55, // push EBP
- 0x89, 0xE5, // mov EBP, ESP
- //0x83, 0xEC, 0x08, // sub ESP, 0x8
- 0xE8, 1, 2, 3, 4, // call +0x04030201
- 0x89, 0xEC, // mov ESP, EBP
- 0x5D, // pop EBP
- 0xC3, // ret
- 0x90, // nop
- 0xC9, // leave
- 0x89, 0xF6, // mov ESI, ESI
- 0x68, 1, 2, 3, 4, // push 0x04030201
- 0x5e, // pop ESI
- 0xFF, 0xD0, // call EAX
- 0xB8, 1, 2, 3, 4, // mov EAX, 0x04030201
- 0x85, 0xC0, // test EAX, EAX
- 0xF4, // hlt
- };
-
-#if 0
- // SparcV9 code
- unsigned char Buffer[] = { 0xbf, 0xe0, 0x20, 0x1f, 0x1, 0x0, 0x0, 0x1,
- 0x0, 0x0, 0x0, 0x0, 0xc1, 0x0, 0x20, 0x1, 0x1,
- 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
- 0x0, 0x0, 0x0, 0x0, 0x0, 0x40, 0x0, 0x0, 0x0, 0x1,
- 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
- 0x0, 0x0, 0xaf, 0xe8, 0x20, 0x17
- };
-#endif
-
- std::vector<Record*> Insts;
-
- const std::map<std::string, Record*> &Defs = Records.getDefs();
- Record *Inst = Records.getClass("Instruction");
- assert(Inst && "Couldn't find Instruction class!");
- for (std::map<std::string, Record*>::const_iterator I = Defs.begin(),
- E = Defs.end(); I != E; ++I)
- if (I->second->isSubClassOf(Inst))
- Insts.push_back(I->second);
-
- unsigned char *BuffPtr = Buffer;
- while (1) {
- Record *R = ParseMachineCode(Insts.begin(), Insts.end(), BuffPtr);
- if (R == 0) {
- std::cout << "Parse failed!\n";
- return;
- }
- PrintInstruction(R, BuffPtr);
-
- unsigned Bits = getNumBits(R);
- assert((Bits & 7) == 0 && "Instruction is not an even number of bytes!");
- BuffPtr += Bits/8;
- }
-}
-
-
-int main(int argc, char **argv) {
- cl::ParseCommandLineOptions(argc, argv);
- ParseFile();
-
- if (Parse) {
- ParseMachineCode();
- return 0;
- }
-
- if (GenEmitter) {
- CodeEmitterGen CEG(Records);
- CEG.createEmitter(std::cout);
return 0;
- }
- if (Class == "") {
- std::cout << Records; // No argument, dump all contents
- } else {
- Record *R = Records.getClass(Class);
- if (R == 0) {
- std::cerr << "Cannot find class '" << Class << "'!\n";
- abort();
- }
+ } catch (const TGError &Error) {
+ errs() << argv[0] << ": error:\n";
+ PrintError(Error.getLoc(), Error.getMessage());
- const std::map<std::string, Record*> &Defs = Records.getDefs();
- for (std::map<std::string, Record*>::const_iterator I = Defs.begin(),
- E = Defs.end(); I != E; ++I) {
- if (I->second->isSubClassOf(R)) {
- std::cout << I->first << ", ";
- }
- }
- std::cout << "\n";
+ } catch (const std::string &Error) {
+ errs() << argv[0] << ": " << Error << "\n";
+ } catch (const char *Error) {
+ errs() << argv[0] << ": " << Error << "\n";
+ } catch (...) {
+ errs() << argv[0] << ": Unknown unexpected exception occurred.\n";
}
- return 0;
+
+ if (OutputFilename != "-")
+ std::remove(OutputFilename.c_str()); // Remove the file, it's broken
+ return 1;
}