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| author | 2016-09-03 22:46:54 +0000 | |
|---|---|---|
| committer | 2016-09-03 22:46:54 +0000 | |
| commit | b5500b9ca0102f1ccaf32f0e77e96d0739aded9b (patch) | |
| tree | e1b7ebb5a0231f9e6d8d3f6f719582cebd64dc98 /gnu/llvm/tools/llvm-split/llvm-split.cpp | |
| parent | clarify purpose of src/gnu/ directory. (diff) | |
| download | wireguard-openbsd-b5500b9ca0102f1ccaf32f0e77e96d0739aded9b.tar.xz wireguard-openbsd-b5500b9ca0102f1ccaf32f0e77e96d0739aded9b.zip | |
Use the space freed up by sparc and zaurus to import LLVM.
ok hackroom@
Diffstat (limited to 'gnu/llvm/tools/llvm-split/llvm-split.cpp')
| -rw-r--r-- | gnu/llvm/tools/llvm-split/llvm-split.cpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/gnu/llvm/tools/llvm-split/llvm-split.cpp b/gnu/llvm/tools/llvm-split/llvm-split.cpp new file mode 100644 index 00000000000..059770fbf4a --- /dev/null +++ b/gnu/llvm/tools/llvm-split/llvm-split.cpp @@ -0,0 +1,67 @@ +//===-- llvm-split: command line tool for testing module splitter ---------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This program can be used to test the llvm::SplitModule function. +// +//===----------------------------------------------------------------------===// + +#include "llvm/ADT/StringExtras.h" +#include "llvm/Bitcode/ReaderWriter.h" +#include "llvm/IR/LLVMContext.h" +#include "llvm/IRReader/IRReader.h" +#include "llvm/Support/CommandLine.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/SourceMgr.h" +#include "llvm/Support/ToolOutputFile.h" +#include "llvm/Support/raw_ostream.h" +#include "llvm/Transforms/Utils/SplitModule.h" + +using namespace llvm; + +static cl::opt<std::string> +InputFilename(cl::Positional, cl::desc("<input bitcode file>"), + cl::init("-"), cl::value_desc("filename")); + +static cl::opt<std::string> +OutputFilename("o", cl::desc("Override output filename"), + cl::value_desc("filename")); + +static cl::opt<unsigned> NumOutputs("j", cl::Prefix, cl::init(2), + cl::desc("Number of output files")); + +int main(int argc, char **argv) { + LLVMContext &Context = getGlobalContext(); + SMDiagnostic Err; + cl::ParseCommandLineOptions(argc, argv, "LLVM module splitter\n"); + + std::unique_ptr<Module> M = parseIRFile(InputFilename, Err, Context); + + if (!M) { + Err.print(argv[0], errs()); + return 1; + } + + unsigned I = 0; + SplitModule(std::move(M), NumOutputs, [&](std::unique_ptr<Module> MPart) { + std::error_code EC; + std::unique_ptr<tool_output_file> Out(new tool_output_file( + OutputFilename + utostr(I++), EC, sys::fs::F_None)); + if (EC) { + errs() << EC.message() << '\n'; + exit(1); + } + + WriteBitcodeToFile(MPart.get(), Out->os()); + + // Declare success. + Out->keep(); + }); + + return 0; +} |
