//===- TableGen.cpp - Top-Level TableGen implementation -------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and 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
#include "Record.h"
#include "Support/CommandLine.h"
-#include "Support/Signals.h"
+#include "llvm/System/Signals.h"
#include "Support/FileUtilities.h"
#include "CodeEmitterGen.h"
#include "RegisterInfoEmitter.h"
#include "InstrInfoEmitter.h"
+#include "InstrSelectorEmitter.h"
#include <algorithm>
+#include <cstdio>
#include <fstream>
+using namespace llvm;
enum ActionType {
PrintRecords,
GenEmitter,
GenRegisterEnums, GenRegister, GenRegisterHeader,
- GenInstrEnums, GenInstrs,
+ GenInstrEnums, GenInstrs, GenInstrSelector,
PrintEnums,
- Parse,
+ Parse
};
namespace {
"Generate enum values for instructions"),
clEnumValN(GenInstrs, "gen-instr-desc",
"Generate instruction descriptions"),
+ clEnumValN(GenInstrSelector, "gen-instr-selector",
+ "Generate an instruction selector"),
clEnumValN(PrintEnums, "print-enums",
"Print enum values for a class"),
clEnumValN(Parse, "parse",
"Interpret machine code (testing only)"),
- 0));
+ clEnumValEnd));
cl::opt<std::string>
Class("class", cl::desc("Print Enum list for this class"),
cl::opt<std::string>
InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
-}
+ cl::opt<std::string>
+ IncludeDir("I", cl::desc("Directory of include files"),
+ cl::value_desc("directory"), cl::init(""));
+}
-void ParseFile(const std::string &Filename);
+namespace llvm {
+ void ParseFile(const std::string &Filename,
+ const std::string &IncludeDir);
+}
-RecordKeeper Records;
+RecordKeeper llvm::Records;
static Init *getBit(Record *R, unsigned BitNo) {
const std::vector<RecordVal> &V = R->getValues();
}
std::cerr << "Cannot find requested bit!\n";
- abort();
+ exit(1);
return 0;
}
}
// 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.
+// intentionally 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,
if (RangeBegin == InstsB && RangeEnd == InstsE) {
std::cerr << "Error: Could not distinguish among the following insts!:\n";
PrintRange(InstsB, InstsE);
- abort();
+ exit(1);
}
#if 0
}
}
-
int main(int argc, char **argv) {
cl::ParseCommandLineOptions(argc, argv);
- ParseFile(InputFilename);
+ ParseFile(InputFilename, IncludeDir);
std::ostream *Out = &std::cout;
if (OutputFilename != "-") {
- // Output to a .tmp file, because we don't actually want to overwrite the
- // output file unless the generated file is different or the specified file
- // does not exist.
- Out = new std::ofstream((OutputFilename+".tmp").c_str());
+ Out = new std::ofstream(OutputFilename.c_str());
if (!Out->good()) {
- std::cerr << argv[0] << ": error opening " << OutputFilename << ".tmp!\n";
+ std::cerr << argv[0] << ": error opening " << OutputFilename << "!\n";
return 1;
}
// Make sure the file gets removed if *gasp* tablegen crashes...
- RemoveFileOnSignal(OutputFilename+".tmp");
+ RemoveFileOnSignal(OutputFilename);
}
try {
case GenInstrs:
InstrInfoEmitter(Records).run(*Out);
break;
-
+ case GenInstrSelector:
+ InstrSelectorEmitter(Records).run(*Out);
+ break;
case PrintEnums:
+ {
std::vector<Record*> Recs = Records.getAllDerivedDefinitions(Class);
for (unsigned i = 0, e = Recs.size(); i != e; ++i)
- *Out << Recs[i] << ", ";
+ *Out << Recs[i]->getName() << ", ";
*Out << "\n";
break;
}
+ default:
+ assert(1 && "Invalid Action");
+ return 1;
+ }
} catch (const std::string &Error) {
std::cerr << Error << "\n";
if (Out != &std::cout) {
if (Out != &std::cout) {
delete Out; // Close the file
-
- // Now that we have generated the result, check to see if we either don't
- // have the requested file, or if the requested file is different than the
- // file we generated. If so, move the generated file over the requested
- // file. Otherwise, just remove the file we just generated, so 'make'
- // doesn't try to regenerate tons of dependencies.
- //
- MoveFileOverIfUpdated(OutputFilename+".tmp", OutputFilename);
}
return 0;
}
projects / oota-llvm.git / blobdiff