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Use SequenceToOffsetTable to create instruction name table. Saves space particularly on X86 where AVX instructions just add a 'v' to the front of other instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153841 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -14,7 +14,7 @@
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#include "InstrInfoEmitter.h"
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#include "CodeGenTarget.h"
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#include "StringToOffsetTable.h"
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#include "SequenceToOffsetTable.h"
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#include "llvm/TableGen/Record.h"
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#include "llvm/ADT/StringExtras.h"
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#include <algorithm>
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@ -214,21 +214,28 @@ void InstrInfoEmitter::run(raw_ostream &OS) {
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OperandInfoIDs, OS);
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OS << "};\n\n";
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OS << "extern const unsigned " << TargetName <<"InstrNameIndices[] = {\n ";
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StringToOffsetTable StringTable;
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// Build an array of instruction names
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SequenceToOffsetTable<std::string> InstrNames;
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for (unsigned i = 0, e = NumberedInstructions.size(); i != e; ++i) {
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const CodeGenInstruction *Instr = NumberedInstructions[i];
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OS << StringTable.GetOrAddStringOffset(Instr->TheDef->getName()) << "U, ";
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InstrNames.add(Instr->TheDef->getName());
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}
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InstrNames.layout();
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OS << "extern const char " << TargetName << "InstrNameData[] = {\n";
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InstrNames.emit(OS, printChar);
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OS << "};\n\n";
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OS << "extern const unsigned " << TargetName <<"InstrNameIndices[] = {";
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for (unsigned i = 0, e = NumberedInstructions.size(); i != e; ++i) {
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if (i % 8 == 0)
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OS << "\n ";
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const CodeGenInstruction *Instr = NumberedInstructions[i];
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OS << InstrNames.get(Instr->TheDef->getName()) << "U, ";
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}
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OS << "\n};\n\n";
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OS << "const char *" << TargetName << "InstrNameData =\n";
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StringTable.EmitString(OS);
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OS << ";\n\n";
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// MCInstrInfo initialization routine.
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OS << "static inline void Init" << TargetName
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<< "MCInstrInfo(MCInstrInfo *II) {\n";
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@ -259,7 +266,7 @@ void InstrInfoEmitter::run(raw_ostream &OS) {
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OS << "namespace llvm {\n";
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OS << "extern const MCInstrDesc " << TargetName << "Insts[];\n";
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OS << "extern const unsigned " << TargetName << "InstrNameIndices[];\n";
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OS << "extern const char *" << TargetName << "InstrNameData;\n";
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OS << "extern const char " << TargetName << "InstrNameData[];\n";
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OS << ClassName << "::" << ClassName << "(int SO, int DO)\n"
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<< " : TargetInstrInfoImpl(SO, DO) {\n"
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<< " InitMCInstrInfo(" << TargetName << "Insts, "
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