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-rw-r--r--contrib/llvm/examples/BrainF/BrainFDriver.cpp160
1 files changed, 0 insertions, 160 deletions
diff --git a/contrib/llvm/examples/BrainF/BrainFDriver.cpp b/contrib/llvm/examples/BrainF/BrainFDriver.cpp
deleted file mode 100644
index c11a58067e8d..000000000000
--- a/contrib/llvm/examples/BrainF/BrainFDriver.cpp
+++ /dev/null
@@ -1,160 +0,0 @@
-//===-- BrainFDriver.cpp - BrainF compiler driver -----------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===--------------------------------------------------------------------===//
-//
-// This program converts the BrainF language into LLVM assembly,
-// which it can then run using the JIT or output as BitCode.
-//
-// This implementation has a tape of 65536 bytes,
-// with the head starting in the middle.
-// Range checking is off by default, so be careful.
-// It can be enabled with -abc.
-//
-// Use:
-// ./BrainF -jit prog.bf #Run program now
-// ./BrainF -jit -abc prog.bf #Run program now safely
-// ./BrainF prog.bf #Write as BitCode
-//
-// lli prog.bf.bc #Run generated BitCode
-// llvm-ld -native -o=prog prog.bf.bc #Compile BitCode into native executable
-//
-//===--------------------------------------------------------------------===//
-
-#include "BrainF.h"
-#include "llvm/Constants.h"
-#include "llvm/Analysis/Verifier.h"
-#include "llvm/Bitcode/ReaderWriter.h"
-#include "llvm/ExecutionEngine/GenericValue.h"
-#include "llvm/ExecutionEngine/JIT.h"
-#include "llvm/Target/TargetSelect.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/ManagedStatic.h"
-#include "llvm/Support/raw_ostream.h"
-#include <iostream>
-#include <fstream>
-using namespace llvm;
-
-//Command line options
-
-static cl::opt<std::string>
-InputFilename(cl::Positional, cl::desc("<input brainf>"));
-
-static cl::opt<std::string>
-OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename"));
-
-static cl::opt<bool>
-ArrayBoundsChecking("abc", cl::desc("Enable array bounds checking"));
-
-static cl::opt<bool>
-JIT("jit", cl::desc("Run program Just-In-Time"));
-
-
-//Add main function so can be fully compiled
-void addMainFunction(Module *mod) {
- //define i32 @main(i32 %argc, i8 **%argv)
- Function *main_func = cast<Function>(mod->
- getOrInsertFunction("main", IntegerType::getInt32Ty(mod->getContext()),
- IntegerType::getInt32Ty(mod->getContext()),
- PointerType::getUnqual(PointerType::getUnqual(
- IntegerType::getInt8Ty(mod->getContext()))), NULL));
- {
- Function::arg_iterator args = main_func->arg_begin();
- Value *arg_0 = args++;
- arg_0->setName("argc");
- Value *arg_1 = args++;
- arg_1->setName("argv");
- }
-
- //main.0:
- BasicBlock *bb = BasicBlock::Create(mod->getContext(), "main.0", main_func);
-
- //call void @brainf()
- {
- CallInst *brainf_call = CallInst::Create(mod->getFunction("brainf"),
- "", bb);
- brainf_call->setTailCall(false);
- }
-
- //ret i32 0
- ReturnInst::Create(mod->getContext(),
- ConstantInt::get(mod->getContext(), APInt(32, 0)), bb);
-}
-
-int main(int argc, char **argv) {
- cl::ParseCommandLineOptions(argc, argv, " BrainF compiler\n");
-
- LLVMContext &Context = getGlobalContext();
-
- if (InputFilename == "") {
- errs() << "Error: You must specify the filename of the program to "
- "be compiled. Use --help to see the options.\n";
- abort();
- }
-
- //Get the output stream
- raw_ostream *out = &outs();
- if (!JIT) {
- if (OutputFilename == "") {
- std::string base = InputFilename;
- if (InputFilename == "-") { base = "a"; }
-
- // Use default filename.
- OutputFilename = base+".bc";
- }
- if (OutputFilename != "-") {
- std::string ErrInfo;
- out = new raw_fd_ostream(OutputFilename.c_str(), ErrInfo,
- raw_fd_ostream::F_Binary);
- }
- }
-
- //Get the input stream
- std::istream *in = &std::cin;
- if (InputFilename != "-")
- in = new std::ifstream(InputFilename.c_str());
-
- //Gather the compile flags
- BrainF::CompileFlags cf = BrainF::flag_off;
- if (ArrayBoundsChecking)
- cf = BrainF::CompileFlags(cf | BrainF::flag_arraybounds);
-
- //Read the BrainF program
- BrainF bf;
- Module *mod = bf.parse(in, 65536, cf, Context); //64 KiB
- if (in != &std::cin)
- delete in;
- addMainFunction(mod);
-
- //Verify generated code
- if (verifyModule(*mod)) {
- errs() << "Error: module failed verification. This shouldn't happen.\n";
- abort();
- }
-
- //Write it out
- if (JIT) {
- InitializeNativeTarget();
-
- outs() << "------- Running JIT -------\n";
- ExecutionEngine *ee = EngineBuilder(mod).create();
- std::vector<GenericValue> args;
- Function *brainf_func = mod->getFunction("brainf");
- GenericValue gv = ee->runFunction(brainf_func, args);
- } else {
- WriteBitcodeToFile(mod, *out);
- }
-
- //Clean up
- if (out != &outs())
- delete out;
- delete mod;
-
- llvm_shutdown();
-
- return 0;
-}