Move TableGen's parser and entry point into a library
This is the first step towards splitting LLVM and Clang's tblgen executables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140951 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/TableGen.cpp b/utils/TableGen/TableGen.cpp
index f060711..a1cb427 100644
--- a/utils/TableGen/TableGen.cpp
+++ b/utils/TableGen/TableGen.cpp
@@ -1,4 +1,4 @@
-//===- TableGen.cpp - Top-Level TableGen implementation -------------------===//
+//===- TableGen.cpp - Top-Level TableGen implementation for LLVM ----------===//
//
// The LLVM Compiler Infrastructure
//
@@ -7,11 +7,7 @@
//
//===----------------------------------------------------------------------===//
//
-// 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.
+// This file contains the main function for LLVM's TableGen.
//
//===----------------------------------------------------------------------===//
@@ -26,28 +22,25 @@
#include "DAGISelEmitter.h"
#include "DisassemblerEmitter.h"
#include "EDEmitter.h"
-#include "Error.h"
#include "FastISelEmitter.h"
#include "InstrInfoEmitter.h"
#include "IntrinsicEmitter.h"
#include "NeonEmitter.h"
#include "OptParserEmitter.h"
#include "PseudoLoweringEmitter.h"
-#include "Record.h"
#include "RegisterInfoEmitter.h"
#include "ARMDecoderEmitter.h"
#include "SubtargetEmitter.h"
#include "SetTheory.h"
-#include "TGParser.h"
-#include "llvm/ADT/OwningPtr.h"
+
#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/PrettyStackTrace.h"
-#include "llvm/Support/ToolOutputFile.h"
#include "llvm/Support/Signals.h"
-#include "llvm/Support/system_error.h"
-#include <algorithm>
-#include <cstdio>
+#include "llvm/TableGen/Error.h"
+#include "llvm/TableGen/Main.h"
+#include "llvm/TableGen/Record.h"
+#include "llvm/TableGen/TableGenAction.h"
+
using namespace llvm;
enum ActionType {
@@ -173,196 +166,124 @@
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>
- DependFilename("d", cl::desc("Dependency 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);
}
-
-int main(int argc, char **argv) {
- RecordKeeper Records;
-
- sys::PrintStackTraceOnErrorSignal();
- PrettyStackTraceProgram X(argc, argv);
- cl::ParseCommandLineOptions(argc, argv);
-
-
- try {
- // Parse the input file.
- OwningPtr<MemoryBuffer> File;
- if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputFilename.c_str(), File)) {
- errs() << "Could not open input file '" << InputFilename << "': "
- << ec.message() <<"\n";
- return 1;
- }
- MemoryBuffer *F = File.take();
-
- // Tell SrcMgr about this buffer, which is what TGParser will pick up.
- SrcMgr.AddNewSourceBuffer(F, SMLoc());
-
- // Record the location of the include directory so that the lexer can find
- // it later.
- SrcMgr.setIncludeDirs(IncludeDirs);
-
- TGParser Parser(SrcMgr, Records);
-
- if (Parser.ParseFile())
- return 1;
-
- std::string Error;
- tool_output_file Out(OutputFilename.c_str(), Error);
- if (!Error.empty()) {
- errs() << argv[0] << ": error opening " << OutputFilename
- << ":" << Error << "\n";
- return 1;
- }
- if (!DependFilename.empty()) {
- if (OutputFilename == "-") {
- errs() << argv[0] << ": the option -d must be used together with -o\n";
- return 1;
- }
- tool_output_file DepOut(DependFilename.c_str(), Error);
- if (!Error.empty()) {
- errs() << argv[0] << ": error opening " << DependFilename
- << ":" << Error << "\n";
- return 1;
- }
- DepOut.os() << OutputFilename << ":";
- const std::vector<std::string> &Dependencies = Parser.getDependencies();
- for (std::vector<std::string>::const_iterator I = Dependencies.begin(),
- E = Dependencies.end();
- I != E; ++I) {
- DepOut.os() << " " << (*I);
- }
- DepOut.os() << "\n";
- DepOut.keep();
- }
-
+class LLVMTableGenAction : public TableGenAction {
+public:
+ bool operator()(raw_ostream &OS, RecordKeeper &Records) {
switch (Action) {
case PrintRecords:
- Out.os() << Records; // No argument, dump all contents
+ OS << Records; // No argument, dump all contents
break;
case GenEmitter:
- CodeEmitterGen(Records).run(Out.os());
+ CodeEmitterGen(Records).run(OS);
break;
case GenRegisterInfo:
- RegisterInfoEmitter(Records).run(Out.os());
+ RegisterInfoEmitter(Records).run(OS);
break;
case GenInstrInfo:
- InstrInfoEmitter(Records).run(Out.os());
+ InstrInfoEmitter(Records).run(OS);
break;
case GenCallingConv:
- CallingConvEmitter(Records).run(Out.os());
+ CallingConvEmitter(Records).run(OS);
break;
case GenAsmWriter:
- AsmWriterEmitter(Records).run(Out.os());
+ AsmWriterEmitter(Records).run(OS);
break;
case GenARMDecoder:
- ARMDecoderEmitter(Records).run(Out.os());
+ ARMDecoderEmitter(Records).run(OS);
break;
case GenAsmMatcher:
- AsmMatcherEmitter(Records).run(Out.os());
+ AsmMatcherEmitter(Records).run(OS);
break;
case GenClangAttrClasses:
- ClangAttrClassEmitter(Records).run(Out.os());
+ ClangAttrClassEmitter(Records).run(OS);
break;
case GenClangAttrImpl:
- ClangAttrImplEmitter(Records).run(Out.os());
+ ClangAttrImplEmitter(Records).run(OS);
break;
case GenClangAttrList:
- ClangAttrListEmitter(Records).run(Out.os());
+ ClangAttrListEmitter(Records).run(OS);
break;
case GenClangAttrPCHRead:
- ClangAttrPCHReadEmitter(Records).run(Out.os());
+ ClangAttrPCHReadEmitter(Records).run(OS);
break;
case GenClangAttrPCHWrite:
- ClangAttrPCHWriteEmitter(Records).run(Out.os());
+ ClangAttrPCHWriteEmitter(Records).run(OS);
break;
case GenClangAttrSpellingList:
- ClangAttrSpellingListEmitter(Records).run(Out.os());
+ ClangAttrSpellingListEmitter(Records).run(OS);
break;
case GenClangAttrLateParsedList:
- ClangAttrLateParsedListEmitter(Records).run(Out.os());
+ ClangAttrLateParsedListEmitter(Records).run(OS);
break;
case GenClangDiagsDefs:
- ClangDiagsDefsEmitter(Records, ClangComponent).run(Out.os());
+ ClangDiagsDefsEmitter(Records, ClangComponent).run(OS);
break;
case GenClangDiagGroups:
- ClangDiagGroupsEmitter(Records).run(Out.os());
+ ClangDiagGroupsEmitter(Records).run(OS);
break;
case GenClangDiagsIndexName:
- ClangDiagsIndexNameEmitter(Records).run(Out.os());
+ ClangDiagsIndexNameEmitter(Records).run(OS);
break;
case GenClangDeclNodes:
- ClangASTNodesEmitter(Records, "Decl", "Decl").run(Out.os());
- ClangDeclContextEmitter(Records).run(Out.os());
+ ClangASTNodesEmitter(Records, "Decl", "Decl").run(OS);
+ ClangDeclContextEmitter(Records).run(OS);
break;
case GenClangStmtNodes:
- ClangASTNodesEmitter(Records, "Stmt", "").run(Out.os());
+ ClangASTNodesEmitter(Records, "Stmt", "").run(OS);
break;
case GenClangSACheckers:
- ClangSACheckersEmitter(Records).run(Out.os());
+ ClangSACheckersEmitter(Records).run(OS);
break;
case GenDisassembler:
- DisassemblerEmitter(Records).run(Out.os());
+ DisassemblerEmitter(Records).run(OS);
break;
case GenPseudoLowering:
- PseudoLoweringEmitter(Records).run(Out.os());
+ PseudoLoweringEmitter(Records).run(OS);
break;
case GenOptParserDefs:
- OptParserEmitter(Records, true).run(Out.os());
+ OptParserEmitter(Records, true).run(OS);
break;
case GenOptParserImpl:
- OptParserEmitter(Records, false).run(Out.os());
+ OptParserEmitter(Records, false).run(OS);
break;
case GenDAGISel:
- DAGISelEmitter(Records).run(Out.os());
+ DAGISelEmitter(Records).run(OS);
break;
case GenFastISel:
- FastISelEmitter(Records).run(Out.os());
+ FastISelEmitter(Records).run(OS);
break;
case GenSubtarget:
- SubtargetEmitter(Records).run(Out.os());
+ SubtargetEmitter(Records).run(OS);
break;
case GenIntrinsic:
- IntrinsicEmitter(Records).run(Out.os());
+ IntrinsicEmitter(Records).run(OS);
break;
case GenTgtIntrinsic:
- IntrinsicEmitter(Records, true).run(Out.os());
+ IntrinsicEmitter(Records, true).run(OS);
break;
case GenEDInfo:
- EDEmitter(Records).run(Out.os());
+ EDEmitter(Records).run(OS);
break;
case GenArmNeon:
- NeonEmitter(Records).run(Out.os());
+ NeonEmitter(Records).run(OS);
break;
case GenArmNeonSema:
- NeonEmitter(Records).runHeader(Out.os());
+ NeonEmitter(Records).runHeader(OS);
break;
case GenArmNeonTest:
- NeonEmitter(Records).runTests(Out.os());
+ NeonEmitter(Records).runTests(OS);
break;
case PrintEnums:
{
std::vector<Record*> Recs = Records.getAllDerivedDefinitions(Class);
for (unsigned i = 0, e = Recs.size(); i != e; ++i)
- Out.os() << Recs[i]->getName() << ", ";
- Out.os() << "\n";
+ OS << Recs[i]->getName() << ", ";
+ OS << "\n";
break;
}
case PrintSets:
@@ -371,33 +292,29 @@
Sets.addFieldExpander("Set", "Elements");
std::vector<Record*> Recs = Records.getAllDerivedDefinitions("Set");
for (unsigned i = 0, e = Recs.size(); i != e; ++i) {
- Out.os() << Recs[i]->getName() << " = [";
+ OS << Recs[i]->getName() << " = [";
const std::vector<Record*> *Elts = Sets.expand(Recs[i]);
assert(Elts && "Couldn't expand Set instance");
for (unsigned ei = 0, ee = Elts->size(); ei != ee; ++ei)
- Out.os() << ' ' << (*Elts)[ei]->getName();
- Out.os() << " ]\n";
+ OS << ' ' << (*Elts)[ei]->getName();
+ OS << " ]\n";
}
break;
}
default:
assert(1 && "Invalid Action");
- return 1;
+ return true;
}
- // Declare success.
- Out.keep();
- return 0;
-
- } catch (const TGError &Error) {
- PrintError(Error);
- } catch (const std::string &Error) {
- PrintError(Error);
- } catch (const char *Error) {
- PrintError(Error);
- } catch (...) {
- errs() << argv[0] << ": Unknown unexpected exception occurred.\n";
+ return false;
}
+};
- return 1;
+int main(int argc, char **argv) {
+ sys::PrintStackTraceOnErrorSignal();
+ PrettyStackTraceProgram X(argc, argv);
+ cl::ParseCommandLineOptions(argc, argv);
+
+ LLVMTableGenAction Action;
+ return TableGenMain(argv[0], Action);
}