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Add initial implementation of a TableGen backend for converting Clang-warnings
tablegen files to the original .def preprocessor include files. This is my first TableGen backend; I don't claim that it is awesome. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66971 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -19,6 +19,7 @@ add_executable(tblgen
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TableGen.cpp
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TableGen.cpp
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TableGenBackend.cpp
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TableGenBackend.cpp
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FastISelEmitter.cpp
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FastISelEmitter.cpp
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ClangDiagnosticsEmitter.cpp
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)
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)
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target_link_libraries(tblgen LLVMSupport LLVMSystem)
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target_link_libraries(tblgen LLVMSupport LLVMSystem)
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84
utils/TableGen/ClangDiagnosticsEmitter.cpp
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84
utils/TableGen/ClangDiagnosticsEmitter.cpp
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//=- ClangDiagnosticsEmitter.cpp - Generate Clang diagnostics tables -*- C++ -*-
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// These tablegen backends emit Clang diagnostics tables.
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//
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//===----------------------------------------------------------------------===//
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#include "ClangDiagnosticsEmitter.h"
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#include "Record.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/Streams.h"
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#include "llvm/ADT/VectorExtras.h"
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using namespace llvm;
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typedef std::vector<Record*> RecordVector;
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typedef std::vector<Record*> SuperClassVector;
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typedef std::vector<RecordVal> RecordValVector;
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static const RecordVal* findRecordVal(const RecordValVector& Vals,
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const std::string &key) {
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for (RecordValVector::const_iterator I=Vals.begin(), E=Vals.end(); I!=E; ++I)
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if ((*I).getName() == key)
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return &*I;
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return 0;
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}
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static const Record* getDiagKind(const Record* DiagClass, const Record &R) {
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const SuperClassVector &SC = R.getSuperClasses();
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for (SuperClassVector::const_iterator I=SC.begin(), E=SC.end(); I!=E; ++I)
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if ((*I)->isSubClassOf(DiagClass))
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return *I;
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return 0;
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}
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static void EmitEscaped(std::ostream& OS, const std::string &s) {
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for (std::string::const_iterator I=s.begin(), E=s.end(); I!=E; ++I)
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switch (*I) {
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default: OS << *I; break;
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case '\"': OS << "\\" << *I; break;
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case '\\': OS << "\\\\"; break;
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}
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}
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static void ProcessDiag(std::ostream& OS, const Record* DiagClass,
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const Record& R) {
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const Record* DiagKind = getDiagKind(DiagClass, R);
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if (!DiagKind)
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return;
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OS << "DIAG(" << R.getName() << ", ";
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const std::string &s = DiagKind->getName();
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for (std::string::const_iterator I=s.begin(), E=s.end(); I!=E; ++I)
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OS << char(toupper(*I));
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const RecordVal* Text = findRecordVal(R.getValues(), "Text");
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assert(Text && "No 'Text' entry in Diagnostic.");
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const StringInit* TextVal = dynamic_cast<const StringInit*>(Text->getValue());
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assert(TextVal && "Value 'Text' must be a string.");
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OS << ", \"";
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EmitEscaped(OS, TextVal->getValue());
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OS << "\")\n";
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}
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void ClangDiagsDefsEmitter::run(std::ostream &OS) {
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const RecordVector &Diags = Records.getAllDerivedDefinitions("Diagnostic");
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const Record* DiagClass = Records.getClass("Diagnostic");
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assert(DiagClass && "No Diagnostic class defined.");
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for (RecordVector::const_iterator I=Diags.begin(), E=Diags.end(); I!=E; ++I) {
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// FIXME: Compare the component.
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ProcessDiag(OS, DiagClass, **I);
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}
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}
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35
utils/TableGen/ClangDiagnosticsEmitter.h
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35
utils/TableGen/ClangDiagnosticsEmitter.h
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//===- ClangDiagnosticsEmitter.h - Generate Clang diagnostics tables -*- C++ -*-
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// These tablegen backends emit Clang diagnostics tables.
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//
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//===----------------------------------------------------------------------===//
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#ifndef CLANGDIAGS_EMITTER_H
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#define CLANGDIAGS_EMITTER_H
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#include "TableGenBackend.h"
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namespace llvm {
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/// ClangDiagsDefsEmitter - The top-level class emits .def files containing
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/// declarations of Clang diagnostics.
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///
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class ClangDiagsDefsEmitter : public TableGenBackend {
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RecordKeeper &Records;
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public:
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explicit ClangDiagsDefsEmitter(RecordKeeper &R) : Records(R) {}
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// run - Output the .def file contents
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void run(std::ostream &OS);
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};
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} // End llvm namespace
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#endif
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@ -34,6 +34,7 @@
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#include "SubtargetEmitter.h"
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#include "SubtargetEmitter.h"
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#include "IntrinsicEmitter.h"
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#include "IntrinsicEmitter.h"
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#include "LLVMCConfigurationEmitter.h"
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#include "LLVMCConfigurationEmitter.h"
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#include "ClangDiagnosticsEmitter.h"
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#include <algorithm>
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#include <algorithm>
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#include <cstdio>
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#include <cstdio>
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#include <fstream>
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#include <fstream>
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@ -46,6 +47,7 @@ enum ActionType {
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GenRegisterEnums, GenRegister, GenRegisterHeader,
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GenRegisterEnums, GenRegister, GenRegisterHeader,
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GenInstrEnums, GenInstrs, GenAsmWriter,
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GenInstrEnums, GenInstrs, GenAsmWriter,
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GenCallingConv,
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GenCallingConv,
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GenClangDiagsDefs,
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GenDAGISel,
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GenDAGISel,
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GenFastISel,
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GenFastISel,
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GenSubtarget,
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GenSubtarget,
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@ -86,6 +88,8 @@ namespace {
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"Generate intrinsic information"),
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"Generate intrinsic information"),
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clEnumValN(GenTgtIntrinsic, "gen-tgt-intrinsic",
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clEnumValN(GenTgtIntrinsic, "gen-tgt-intrinsic",
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"Generate target intrinsic information"),
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"Generate target intrinsic information"),
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clEnumValN(GenClangDiagsDefs, "gen-clang-diags-defs",
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"Generate Clang diagnostics definitions"),
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clEnumValN(GenLLVMCConf, "gen-llvmc",
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clEnumValN(GenLLVMCConf, "gen-llvmc",
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"Generate LLVMC configuration library"),
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"Generate LLVMC configuration library"),
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clEnumValN(PrintEnums, "print-enums",
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clEnumValN(PrintEnums, "print-enums",
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@ -185,7 +189,6 @@ int main(int argc, char **argv) {
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case GenRegisterHeader:
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case GenRegisterHeader:
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RegisterInfoEmitter(Records).runHeader(*Out);
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RegisterInfoEmitter(Records).runHeader(*Out);
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break;
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break;
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case GenInstrEnums:
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case GenInstrEnums:
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InstrEnumEmitter(Records).run(*Out);
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InstrEnumEmitter(Records).run(*Out);
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break;
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break;
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@ -198,7 +201,9 @@ int main(int argc, char **argv) {
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case GenAsmWriter:
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case GenAsmWriter:
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AsmWriterEmitter(Records).run(*Out);
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AsmWriterEmitter(Records).run(*Out);
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break;
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break;
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case GenClangDiagsDefs:
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ClangDiagsDefsEmitter(Records).run(*Out);
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break;
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case GenDAGISel:
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case GenDAGISel:
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DAGISelEmitter(Records).run(*Out);
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DAGISelEmitter(Records).run(*Out);
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break;
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break;
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