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ea195a382e
At the same time, fixes InstructionsTest::CastInst unittest: yes you can leave the IR in an invalid state and exit when you don't destroy the context (like the global one), no longer now. This is the first part of http://reviews.llvm.org/D19094 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 266379
74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
//===-- llvm-split: command line tool for testing module splitter ---------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This program can be used to test the llvm::SplitModule function.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Bitcode/ReaderWriter.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Verifier.h"
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#include "llvm/IRReader/IRReader.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/SourceMgr.h"
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#include "llvm/Support/ToolOutputFile.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/Transforms/Utils/SplitModule.h"
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using namespace llvm;
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static cl::opt<std::string>
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InputFilename(cl::Positional, cl::desc("<input bitcode file>"),
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cl::init("-"), cl::value_desc("filename"));
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static cl::opt<std::string>
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OutputFilename("o", cl::desc("Override output filename"),
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cl::value_desc("filename"));
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static cl::opt<unsigned> NumOutputs("j", cl::Prefix, cl::init(2),
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cl::desc("Number of output files"));
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static cl::opt<bool>
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PreserveLocals("preserve-locals", cl::Prefix, cl::init(false),
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cl::desc("Split without externalizing locals"));
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int main(int argc, char **argv) {
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LLVMContext Context;
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SMDiagnostic Err;
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cl::ParseCommandLineOptions(argc, argv, "LLVM module splitter\n");
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std::unique_ptr<Module> M = parseIRFile(InputFilename, Err, Context);
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if (!M) {
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Err.print(argv[0], errs());
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return 1;
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}
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unsigned I = 0;
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SplitModule(std::move(M), NumOutputs, [&](std::unique_ptr<Module> MPart) {
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std::error_code EC;
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std::unique_ptr<tool_output_file> Out(new tool_output_file(
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OutputFilename + utostr(I++), EC, sys::fs::F_None));
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if (EC) {
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errs() << EC.message() << '\n';
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exit(1);
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}
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verifyModule(*MPart);
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WriteBitcodeToFile(MPart.get(), Out->os());
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// Declare success.
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Out->keep();
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}, PreserveLocals);
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return 0;
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}
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