First "do nothing" version of the LLVM Compiler Driver. This version just

processes command line arguments and allows --help to be used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15607 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/tools/llvmc/llvmc.cpp b/tools/llvmc/llvmc.cpp
new file mode 100644 (file)
index 0000000..989a416
--- /dev/null
+++ b/tools/llvmc/llvmc.cpp
@@ -0,0 +1,167 @@
+//===--- llvmc.cpp - The LLVM Compiler Driver -----------------------------===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencerand is distributed under the
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+//
+//  This tool provides a single point of access to the LLVM compilation tools.
+//  It has many options. To discover the options supported please refer to the
+//  tools' manual page (docs/CommandGuide/html/llvmc.html) or run the tool with
+//  the --help option.
+// 
+//===------------------------------------------------------------------------===
+
+#include "llvm/Driver/CompilerDriver.h"
+#include "llvm/System/Signals.h"
+#include "Support/CommandLine.h"
+#include <iostream>
+
+using namespace llvm;
+
+//===------------------------------------------------------------------------===
+//===          PHASE OPTIONS
+//===------------------------------------------------------------------------===
+static cl::opt<CompilerDriver::Phases> FinalPhase(
+  cl::desc("Choose final phase of compilation:"), 
+  cl::values(
+    clEnumValN(CompilerDriver::PREPROCESSING,"E",
+      "Stop compilation after pre-processing"),
+    clEnumValN(CompilerDriver::OPTIMIZATION,"c",
+      "Stop compilation after source code translation and optimization"),
+    clEnumValN(CompilerDriver::ASSEMBLY,"S",
+      "Stop compilation after assembly"),
+    clEnumValEnd
+  )
+);
+
+//===------------------------------------------------------------------------===
+//===          OPTIMIZATION OPTIONS
+//===------------------------------------------------------------------------===
+static cl::opt<CompilerDriver::OptimizationLevels> OptLevel(
+  cl::desc("Choose level of optimization to apply:"),
+  cl::values(
+    clEnumValN(CompilerDriver::OPT_FAST_COMPILE,"O0",
+      "Optimize for compilation speed, not execution speed."),
+    clEnumValN(CompilerDriver::OPT_FAST_COMPILE,"O1",
+      "Optimize for compilation speed, not execution speed."),
+    clEnumValN(CompilerDriver::OPT_SIMPLE,"O2",
+      "Perform simple translation time optimizations"),
+    clEnumValN(CompilerDriver::OPT_AGGRESSIVE,"O3",
+      "Perform aggressive translation time optimizations"),
+    clEnumValN(CompilerDriver::OPT_LINK_TIME,"O4",
+      "Perform link time optimizations"),
+    clEnumValN(CompilerDriver::OPT_AGGRESSIVE_LINK_TIME,"O5",
+      "Perform aggressive link time optimizations"),
+    clEnumValEnd
+  )
+);
+
+//===------------------------------------------------------------------------===
+//===          TOOL OPTIONS
+//===------------------------------------------------------------------------===
+
+static cl::opt<std::string> PPToolOpts("Tpp", cl::ZeroOrMore,
+  cl::desc("Pass specific options to the pre-processor"));
+
+static cl::opt<std::string> AsmToolOpts("Tasm", cl::ZeroOrMore,
+  cl::desc("Pass specific options to the assembler"));
+
+static cl::opt<std::string> OptToolOpts("Topt", cl::ZeroOrMore,
+  cl::desc("Pass specific options to the optimizer"));
+
+static cl::opt<std::string> LinkToolOpts("Tlink", cl::ZeroOrMore,
+  cl::desc("Pass specific options to the linker"));
+
+//===------------------------------------------------------------------------===
+//===          INPUT OPTIONS
+//===------------------------------------------------------------------------===
+
+static cl::list<std::string> LibPaths("L", cl::Prefix,
+  cl::desc("Specify a library search path"), cl::value_desc("directory"));
+                                                                                                                                            
+static cl::list<std::string> Libraries("l", cl::Prefix,
+  cl::desc("Specify libraries to link to"), cl::value_desc("library prefix"));
+
+
+//===------------------------------------------------------------------------===
+//===          OUTPUT OPTIONS
+//===------------------------------------------------------------------------===
+
+static cl::opt<std::string> OutputFilename("o", cl::init("a.out"),
+  cl::desc("Override output filename"), cl::value_desc("filename"));
+
+static cl::opt<std::string> OutputMachne("m", cl::Prefix,
+  cl::desc("Specify a target machine"), cl::value_desc("machine"));
+                                                                                                                                            
+static cl::opt<bool> Native("native",
+  cl::desc("Generative native object and executables instead of bytecode"));
+
+//===------------------------------------------------------------------------===
+//===          INFORMATION OPTIONS
+//===------------------------------------------------------------------------===
+
+static cl::opt<bool> NoOperation("no-operation", cl::Optional,
+  cl::desc("Do not perform actions"));
+
+static cl::alias NoOp("n", cl::Optional,
+  cl::desc("Alias for -no-operation"), cl::aliasopt(NoOperation));
+
+static cl::opt<bool> Verbose("verbose", cl::Optional,
+  cl::desc("Print out each action taken"));
+
+static cl::alias VerboseAlias("v", cl::Optional,
+  cl::desc("Alias for -verbose"), cl::aliasopt(Verbose));
+
+static cl::opt<bool> TimeActions("time-actions", cl::Optional,
+  cl::desc("Print execution time for each action taken"));
+
+//===------------------------------------------------------------------------===
+//===          ADVANCED OPTIONS
+//===------------------------------------------------------------------------===
+
+static cl::list<std::string> ConfigFiles("config-dir", cl::Optional,
+  cl::desc("Specify a configuration directory to override defaults"));
+
+static cl::opt<bool> EmitRawCode("emit-raw-code", cl::Hidden,
+  cl::desc("Emit raw, unoptimized code"));
+
+//===------------------------------------------------------------------------===
+//===          POSITIONAL OPTIONS
+//===------------------------------------------------------------------------===
+
+static cl::list<std::string> Files(cl::Positional, cl::OneOrMore,
+  cl::desc("Source and object files"));
+
+
+/// @brief The main program for llvmc
+int main(int argc, char **argv) {
+  // Make sure we print stack trace if we get bad signals
+  PrintStackTraceOnErrorSignal();
+
+  // Parse the command line options
+  cl::ParseCommandLineOptions(argc, argv, 
+    " LLVM Compilation Driver (llvmc)\n\n"
+    "  This program provides easy invocation of the LLVM tool set\n"
+    "  and source language compiler tools.\n"
+  );
+
+  // Construct the CompilerDriver object
+  //CompilerDriver CD;
+
+  // Set the options for the Compiler Driver
+
+  // Tell the driver to do its thing
+  int result = 0;
+  // result = CD.execute();
+  if (result != 0) {
+    std::cerr << argv[0] << ": Error executing actions. Terminated.\n";
+    return result;
+  }
+
+  // All is good, return success
+  return 0;
+}
+