Revert Added Delta IR Reduction Tool

This reverts r368071 (git commit a2584978f5bb41973d65a145b0d9459b81e3ac6d)

llvm-svn: 368217

1 files changed, 0 insertions, 105 deletions

diff --git a/llvm/tools/llvm-reduce/llvm-reduce.cpp b/llvm/tools/llvm-reduce/llvm-reduce.cpp
deleted file mode 100644
index 6dd733edecb..00000000000
--- a/llvm/tools/llvm-reduce/llvm-reduce.cpp
+++ /dev/null
@@ -1,105 +0,0 @@
-//===- llvm-reduce.cpp - The LLVM Delta Reduction utility -----------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-//
-// This program tries to reduce an IR test case for a given interesting-ness
-// test. It runs multiple delta debugging passes in order to minimize the input
-// file. It's worth noting that this is a *temporary* tool that will eventually
-// be integrated into the bugpoint tool itself.
-//
-//===----------------------------------------------------------------------===//
-
-#include "DeltaManager.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/IR/LLVMContext.h"
-#include "llvm/IR/Verifier.h"
-#include "llvm/IRReader/IRReader.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/InitLLVM.h"
-#include "llvm/Support/SourceMgr.h"
-#include "llvm/Support/raw_ostream.h"
-#include <system_error>
-#include <vector>
-
-using namespace llvm;
-
-static cl::opt<bool> Help("h", cl::desc("Alias for -help"), cl::Hidden);
-static cl::opt<bool> Version("v", cl::desc("Alias for -version"), cl::Hidden);
-
-static cl::opt<std::string> InputFilename(cl::Positional, cl::Required,
-                                          cl::desc("<input llvm ll/bc file>"));
-
-static cl::opt<std::string>
-    TestFilename("test", cl::Required,
-                 cl::desc("Name of the interesting-ness test to be run"));
-
-static cl::list<std::string>
-    TestArguments("test-arg", cl::ZeroOrMore,
-                  cl::desc("Arguments passed onto the interesting-ness test"));
-
-static cl::opt<std::string>
-    OutputFilename("output",
-                   cl::desc("Specify the output file. default: reduced.ll"));
-static cl::alias OutputFileAlias("o", cl::desc("Alias for -output"),
-                                 cl::aliasopt(OutputFilename));
-
-static cl::opt<bool>
-    ReplaceInput("in-place",
-                 cl::desc("WARNING: This option will replace your input file"
-                          "with the reduced version!"));
-
-// Parses IR into a Module and verifies it
-static std::unique_ptr<Module> parseInputFile(StringRef Filename,
-                                              LLVMContext &Ctxt) {
-  SMDiagnostic Err;
-  std::unique_ptr<Module> Result = parseIRFile(Filename, Err, Ctxt);
-  if (!Result) {
-    Err.print("llvm-reduce", errs());
-    return Result;
-  }
-
-  if (verifyModule(*Result, &errs())) {
-    errs() << "Error: " << Filename << " - input module is broken!\n";
-    return std::unique_ptr<Module>();
-  }
-
-  return Result;
-}
-
-int main(int argc, char **argv) {
-  InitLLVM X(argc, argv);
-
-  cl::ParseCommandLineOptions(argc, argv, "LLVM automatic testcase reducer.\n");
-
-  LLVMContext Context;
-  std::unique_ptr<Module> OriginalProgram =
-      parseInputFile(InputFilename, Context);
-
-  // Initialize test environment
-  TestRunner Tester(TestFilename, TestArguments, InputFilename);
-  Tester.setProgram(std::move(OriginalProgram));
-
-  // Try to reduce code
-  runDeltaPasses(Tester);
-  StringRef ReducedFilename = sys::path::filename(Tester.getReducedFilepath());
-
-  if (ReducedFilename == InputFilename) {
-    outs() << "\nCouldnt reduce input :/\n";
-  } else {
-    if (ReplaceInput) // In-place
-      OutputFilename = InputFilename.c_str();
-    else if (OutputFilename.empty())
-      OutputFilename = "reduced.ll";
-    else
-      OutputFilename += ".ll";
-
-    sys::fs::copy_file(Tester.getReducedFilepath(), OutputFilename);
-    outs() << "\nDone reducing! Reduced IR to file: " << OutputFilename << "\n";
-  }
-
-  return 0;
-}