llvmc: Update examples.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111553 91177308-0d34-0410-b5e6-96231b3b80d8

tools/llvmc/Makefile

@@ -11,4 +11,8 @@ LEVEL = ../..
 
 DIRS = src
 
+ifeq ($(BUILD_EXAMPLES),1)
+  OPTIONAL_DIRS += examples
+endif
+
 include $(LEVEL)/Makefile.common

tools/llvmc/example/Hello/Hello.cpp

@@ -1,33 +0,0 @@
-//===- Hello.cpp - Example code from "Writing an LLVMC Plugin" ------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// Test plugin for LLVMC. Shows how to write plugins without using TableGen.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/CompilerDriver/CompilationGraph.h"
-#include "llvm/CompilerDriver/Plugin.h"
-#include "llvm/Support/raw_ostream.h"
-
-namespace {
-struct MyPlugin : public llvmc::BasePlugin {
-
-  void PreprocessOptions() const
-  {}
-
-  void PopulateLanguageMap(llvmc::LanguageMap&) const
-  { outs() << "Hello!\n"; }
-
-  void PopulateCompilationGraph(llvmc::CompilationGraph&) const
-  {}
-};
-
-static llvmc::RegisterPlugin<MyPlugin> RP("Hello", "Hello World plugin");
-
-}

tools/llvmc/example/Simple/PluginMain.cpp

@@ -1 +0,0 @@
-#include "AutoGenerated.inc"

tools/llvmc/example/Skeleton/Makefile

@@ -1,24 +0,0 @@
-##===- llvmc/example/Skeleton/Makefile ---------------------*- Makefile -*-===##
-#
-#                     The LLVM Compiler Infrastructure
-#
-# This file is distributed under the University of Illinois Open
-# Source License. See LICENSE.TXT for details.
-#
-##===----------------------------------------------------------------------===##
-
-# Change this so that $(BASE_LEVEL)/Makefile.common refers to
-# $LLVM_DIR/Makefile.common or $YOUR_LLVM_BASED_PROJECT/Makefile.common.
-export LLVMC_BASE_LEVEL = ../../../..
-
-# Change this to the name of your LLVMC-based driver.
-export LLVMC_BASED_DRIVER_NAME = llvmc-skeleton
-
-# List your plugin names here
-export LLVMC_BUILTIN_PLUGINS = # Plugin
-
-LEVEL = $(LLVMC_BASE_LEVEL)
-
-DIRS = plugins driver
-
-include $(LEVEL)/Makefile.common

tools/llvmc/example/Skeleton/driver/Makefile

@@ -1,13 +0,0 @@
-##===- llvmc/example/Skeleton/driver/Makefile --------------*- Makefile -*-===##
-#
-#                     The LLVM Compiler Infrastructure
-#
-# This file is distributed under the University of Illinois Open
-# Source License. See LICENSE.TXT for details.
-#
-##===----------------------------------------------------------------------===##
-
-LEVEL = $(LLVMC_BASE_LEVEL)/..
-LLVMC_BASED_DRIVER = $(LLVMC_BASED_DRIVER_NAME)
-
-include $(LEVEL)/Makefile.common

tools/llvmc/example/Skeleton/plugins/Makefile

@@ -1,18 +0,0 @@
-##===- llvmc/example/Skeleton/plugins/Makefile -------------*- Makefile -*-===##
-#
-#                     The LLVM Compiler Infrastructure
-#
-# This file is distributed under the University of Illinois Open
-# Source License. See LICENSE.TXT for details.
-#
-##===----------------------------------------------------------------------===##
-
-LEVEL = $(LLVMC_BASE_LEVEL)/..
-
-ifneq ($(LLVMC_BUILTIN_PLUGINS),)
-DIRS = $(LLVMC_BUILTIN_PLUGINS)
-endif
-
-export LLVMC_BUILTIN_PLUGIN=1
-
-include $(LEVEL)/Makefile.common

tools/llvmc/example/Skeleton/plugins/Plugin/PluginMain.cpp

@@ -1 +0,0 @@
-#include "AutoGenerated.inc"

tools/llvmc/example/mcc16/Makefile

@@ -1,18 +0,0 @@
-##===- llvmc/example/mcc16/Makefile ------------------------*- Makefile -*-===##
-#
-#                     The LLVM Compiler Infrastructure
-#
-# This file is distributed under the University of Illinois Open
-# Source License. See LICENSE.TXT for details.
-#
-##===----------------------------------------------------------------------===##
-
-export LLVMC_BASE_LEVEL = ../../../..
-export LLVMC_BASED_DRIVER_NAME = mcc16
-export LLVMC_BUILTIN_PLUGINS = PIC16Base
-
-LEVEL = $(LLVMC_BASE_LEVEL)
-
-DIRS = plugins driver
-
-include $(LEVEL)/Makefile.common

tools/llvmc/example/mcc16/driver/Makefile

@@ -1,13 +0,0 @@
-##===- llvmc/example/mcc16/driver/Makefile -----------------*- Makefile -*-===##
-#
-#                     The LLVM Compiler Infrastructure
-#
-# This file is distributed under the University of Illinois Open
-# Source License. See LICENSE.TXT for details.
-#
-##===----------------------------------------------------------------------===##
-
-LEVEL = $(LLVMC_BASE_LEVEL)/..
-LLVMC_BASED_DRIVER = $(LLVMC_BASED_DRIVER_NAME)
-
-include $(LEVEL)/Makefile.common

tools/llvmc/example/mcc16/plugins/Makefile

@@ -1,18 +0,0 @@
-##===- llvmc/example/Skeleton/plugins/Makefile -------------*- Makefile -*-===##
-#
-#                     The LLVM Compiler Infrastructure
-#
-# This file is distributed under the University of Illinois Open
-# Source License. See LICENSE.TXT for details.
-#
-##===----------------------------------------------------------------------===##
-
-LEVEL = $(LLVMC_BASE_LEVEL)/..
-
-ifneq ($(LLVMC_BUILTIN_PLUGINS),)
-DIRS = $(LLVMC_BUILTIN_PLUGINS)
-endif
-
-export LLVMC_BUILTIN_PLUGIN=1
-
-include $(LEVEL)/Makefile.common

tools/llvmc/examples/Hello/Hello.cpp

@@ -0,0 +1,29 @@
+//===- Hello.cpp - Example code from "Writing an LLVMC Plugin" ------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Shows how to write llvmc-based drivers without using TableGen.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CompilerDriver/AutoGenerated.h"
+#include "llvm/CompilerDriver/Main.inc"
+
+#include "llvm/Support/raw_ostream.h"
+
+namespace llvmc {
+namespace autogenerated {
+
+int PreprocessOptions () { return 0; }
+
+int PopulateLanguageMap (LanguageMap&) { llvm::outs() << "Hello!\n"; return 0; }
+
+int PopulateCompilationGraph (CompilationGraph&) { return 0; }
+
+}
+}

tools/llvmc/examples/Hello/Makefile

@@ -9,6 +9,6 @@
 
 LEVEL = ../../../..
 
-LLVMC_PLUGIN = Hello
+LLVMC_BASED_DRIVER = Hello
 
 include $(LEVEL)/Makefile.common

tools/llvmc/examples/Makefile

@@ -1,4 +1,4 @@
-##===- llvmc/example/Skeleton/plugins/Plugin/Makefile ------*- Makefile -*-===##
+##===- tools/llvmc/examples/Makefile -----------------------*- Makefile -*-===##
 #
 #                     The LLVM Compiler Infrastructure
 #
@@ -7,11 +7,8 @@
 #
 ##===----------------------------------------------------------------------===##
 
-LEVEL = $(LLVMC_BASE_LEVEL)/../..
+LEVEL=../../..
 
-# Change this to the name of your plugin.
+PARALLEL_DIRS := Hello Simple mcc16 Skeleton
-LLVMC_PLUGIN = Plugin
-
-BUILT_SOURCES = AutoGenerated.inc
 
 include $(LEVEL)/Makefile.common

tools/llvmc/examples/Simple/Makefile

@@ -1,4 +1,4 @@
-##===- tools/llvmc/plugins/Simple/Makefile -----------------*- Makefile -*-===##
+##===- llvmc/examples/Simple/Makefile ----------------------*- Makefile -*-===##
 #
 #                     The LLVM Compiler Infrastructure
 #
@@ -9,7 +9,7 @@
 
 LEVEL = ../../../..
 
-LLVMC_PLUGIN = Simple
+LLVMC_BASED_DRIVER = Simple
-BUILT_SOURCES = AutoGenerated.inc
+BUILT_SOURCES = Simple.inc
 
 include $(LEVEL)/Makefile.common

tools/llvmc/examples/Simple/Simple.cpp

@@ -0,0 +1,2 @@
+#include "llvm/CompilerDriver/Main.inc"
+#include "Simple.inc"

tools/llvmc/examples/Simple/Simple.td

@@ -1,4 +1,4 @@
-//===- Simple.td - A simple plugin for LLVMC ------------------------------===//
+//===- Simple.td - A simple LLVMC-based driver ----------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,19 +7,19 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// A simple LLVMC-based gcc wrapper that shows how to write LLVMC plugins.
+// A simple LLVMC-based gcc wrapper.
 //
 // To compile, use this command:
 //
-//      $ cd $LLVMC_DIR/example/Simple
+//      $ cd $LLVM_OBJ_DIR/tools/llvmc
-//      $ make
+//      $ make BUILD_EXAMPLES=1
 //
 // Run as:
 //
-//      $ llvmc -load $LLVM_DIR/Release/lib/plugin_llvmc_Simple.so
+//      $ $LLVM_OBJ_DIR/$(BuildMode)/bin/Simple
 //
 // For instructions on how to build your own LLVMC-based driver, see
-// the 'example/Skeleton' directory.
+// the 'examples/Skeleton' directory.
 //===----------------------------------------------------------------------===//
 
 include "llvm/CompilerDriver/Common.td"
@@ -28,8 +28,12 @@ def gcc : Tool<
 [(in_language "c"),
  (out_language "executable"),
  (output_suffix "out"),
- (cmd_line "gcc $INFILE -o $OUTFILE"),
+ (command "gcc"),
- (sink)
+ (sink),
+
+ // -o is what is used by default, out_file_option here is included for
+ // instructive purposes.
+ (out_file_option "-o")
 ]>;
 
 def LanguageMap : LanguageMap<[LangToSuffixes<"c", ["c"]>]>;

tools/llvmc/examples/Skeleton/AutoGenerated.td

@@ -1,6 +1,6 @@
-//===- Plugin.td - A skeleton plugin for LLVMC -------------*- tablegen -*-===//
+//===- AutoGenerated.td ------------------------------------*- tablegen -*-===//
 //
-// Write the code for your plugin here.
+// Write the TableGen description of your llvmc-based driver here.
 //
 //===----------------------------------------------------------------------===//
 

tools/llvmc/examples/Skeleton/Hooks.cpp

@@ -0,0 +1,12 @@
+//===--- Hooks.cpp - The LLVM Compiler Driver -------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open
+// Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  Hook definitions should go here.
+//
+//===----------------------------------------------------------------------===//

tools/llvmc/examples/Skeleton/Main.cpp

@@ -7,8 +7,9 @@
 //
 //===----------------------------------------------------------------------===//
 //
-//  Just include CompilerDriver/Main.inc.
+//  Just include CompilerDriver/Main.inc and AutoGenerated.inc.
 //
 //===----------------------------------------------------------------------===//
 
 #include "llvm/CompilerDriver/Main.inc"
+#include "AutoGenerated.inc"

tools/llvmc/examples/Skeleton/Makefile

@@ -0,0 +1,20 @@
+##===- llvmc/examples/Skeleton/Makefile --------------------*- Makefile -*-===##
+#
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open
+# Source License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+
+# Change this so that $(LEVEL)/Makefile.common refers to
+# $LLVM_OBJ_DIR/Makefile.common or $YOUR_LLVM_BASED_PROJECT/Makefile.common.
+export LEVEL = ../../../..
+
+# Change this to the name of your LLVMC-based driver.
+LLVMC_BASED_DRIVER = llvmc-skeleton
+
+# Change this to the name of .inc file built from your .td file.
+BUILT_SOURCES = AutoGenerated.inc
+
+include $(LEVEL)/Makefile.common

tools/llvmc/examples/Skeleton/README

@@ -1,6 +1,6 @@
 
 This is a template that can be used to create your own LLVMC-based drivers. Just
 copy the `Skeleton` directory to the location of your preference and edit
-`Skeleton/Makefile` and `Skeleton/plugins/Plugin`.
+`Skeleton/Makefile` and `Skeleton/AutoGenerated.inc`.
 
 The build system assumes that your project is based on LLVM.

tools/llvmc/examples/mcc16/Hooks.cpp

@@ -1,19 +1,20 @@
-#include "AutoGenerated.inc"
-
 #include "llvm/System/Path.h"
+#include "llvm/Support/CommandLine.h"
 #include "llvm/Support/raw_ostream.h"
 
+#include <string>
+
 using namespace llvm;
 
 namespace llvmc {
   extern char *ProgramName;
 }
 
-  
+extern cl::opt<std::string> AutoGeneratedParameter_p;
 
 // Returns the platform specific directory separator via #ifdefs.
-// FIXME: This currently work on linux and windows only. It does not 
+// FIXME: This currently work on linux and windows only. It does not
-// work on other unices. 
+// work on other unices.
 static std::string GetDirSeparator() {
 #if __linux__ || __APPLE__
   return "/";
@@ -59,12 +60,11 @@ GetUpperCasePartDefine(void) {
   return "__" +  UpperCase;
 }
 
-
 // Get the dir where c16 executables reside.
 std::string GetBinDir() {
-  // Construct a Path object from the program name.  
+  // Construct a Path object from the program name.
   void *P = (void*) (intptr_t) GetBinDir;
-  sys::Path ProgramFullPath 
+  sys::Path ProgramFullPath
     = sys::Path::GetMainExecutable(llvmc::ProgramName, P);
 
   // Get the dir name for the program. It's last component should be 'bin'.
@@ -80,7 +80,7 @@ std::string GetInstallDir() {
 
   // Go one more level up to get the install dir.
   std::string InstallDir  = BinDirPath.getDirname();
-  
+
   return InstallDir + GetDirSeparator();
 }
 

tools/llvmc/examples/mcc16/Main.cpp

@@ -13,21 +13,25 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm/Config/config.h"
 #include "llvm/CompilerDriver/BuiltinOptions.h"
-#include "llvm/CompilerDriver/ForceLinkage.h"
+#include "llvm/CompilerDriver/Main.h"
+
 #include "llvm/System/Path.h"
+#include "llvm/Config/config.h"
+
 #include <iostream>
 
-namespace llvmc {
+#include "PIC16.inc"
-  int Main(int argc, char** argv);
+
-}
+namespace {
 
 // Modify the PACKAGE_VERSION to use build number in top level configure file.
 void PIC16VersionPrinter(void) {
   std::cout << "MPLAB C16 1.0 " << PACKAGE_VERSION << "\n";
 }
 
+}
+
 int main(int argc, char** argv) {
 
   // HACK
@@ -36,7 +40,7 @@ int main(int argc, char** argv) {
   Languages.setHiddenFlag(llvm::cl::Hidden);
   DryRun.setHiddenFlag(llvm::cl::Hidden);
 
-  llvm::cl::SetVersionPrinter(PIC16VersionPrinter); 
+  llvm::cl::SetVersionPrinter(PIC16VersionPrinter);
 
   // Ask for a standard temp dir, but just cache its basename., and delete it.
   llvm::sys::Path tempDir;
@@ -49,6 +53,5 @@ int main(int argc, char** argv) {
   tempDir = TempDirname;
   tempDir.eraseFromDisk(true);
 
-  llvmc::ForceLinkage();
   return llvmc::Main(argc, argv);
 }

tools/llvmc/examples/mcc16/Makefile

@@ -1,4 +1,4 @@
-##===- llvmc/example/Skeleton/plugins/Plugin/Makefile ------*- Makefile -*-===##
+##===- llvmc/examples/mcc16/Makefile -----------------------*- Makefile -*-===##
 #
 #                     The LLVM Compiler Infrastructure
 #
@@ -7,11 +7,9 @@
 #
 ##===----------------------------------------------------------------------===##
 
-LEVEL = $(LLVMC_BASE_LEVEL)/../..
+LEVEL = ../../../..
 
-# Change this to the name of your plugin.
+LLVMC_BASED_DRIVER = mcc16
-LLVMC_PLUGIN = PIC16Base
+BUILT_SOURCES = PIC16.inc
-
-BUILT_SOURCES = AutoGenerated.inc
 
 include $(LEVEL)/Makefile.common

tools/llvmc/examples/mcc16/PIC16.td

@@ -1,4 +1,4 @@
-//===- PIC16Base.td - PIC16 toolchain driver ---------------*- tablegen -*-===//
+//===- PIC16.td - PIC16 toolchain driver -------------------*- tablegen -*-===//
 //
 // A basic driver for the PIC16 toolchain.
 //

tools/llvmc/examples/mcc16/README

@@ -1,5 +1,5 @@
 This is a basic compiler driver for the PIC16 toolchain that shows how to create
-your own llvmc-based drivers. It is based on the example/Skeleton template.
+your own llvmc-based drivers. It is based on the examples/Skeleton template.
 
 The PIC16 toolchain looks like this:
 

utils/TableGen/LLVMCConfigurationEmitter.cpp

@@ -2950,8 +2950,6 @@ void EmitIncludes(raw_ostream& O) {
     << "using namespace llvm;\n"
     << "using namespace llvmc;\n\n"
 
-    << "extern cl::opt<std::string> OutputFilename;\n\n"
-
     << "inline const char* checkCString(const char* s)\n"
     << "{ return s == NULL ? \"\" : s; }\n\n";
 }