Convert another use of createUniqueFile to TempFile::create.

llvm-svn: 318427

llvm/tools/bugpoint/BugDriver.cpp

@@ -32,6 +32,11 @@ namespace llvm {
 Triple TargetTriple;
 }
 
+DiscardTemp::~DiscardTemp() {
+  if (Error E = File.discard())
+    errs() << "Failed to delete temp file " << toString(std::move(E)) << '\n';
+}
+
 // Anonymous namespace to define command line options for debugging.
 //
 namespace {

llvm/tools/bugpoint/BugDriver.h

@@ -18,6 +18,7 @@
 
 #include "llvm/IR/ValueMap.h"
 #include "llvm/Support/Error.h"
+#include "llvm/Support/FileSystem.h"
 #include "llvm/Transforms/Utils/ValueMapper.h"
 #include <memory>
 #include <string>
@@ -278,6 +279,11 @@ private:
   Error initializeExecutionEnvironment();
 };
 
+struct DiscardTemp {
+  sys::fs::TempFile &File;
+  ~DiscardTemp();
+};
+
 ///  Given a bitcode or assembly input filename, parse and return it, or return
 ///  null if not possible.
 ///

llvm/tools/bugpoint/ExtractFunction.cpp

@@ -373,19 +373,17 @@ llvm::SplitFunctionsOutOfModule(Module *M, const std::vector<Function *> &F,
 std::unique_ptr<Module>
 BugDriver::extractMappedBlocksFromModule(const std::vector<BasicBlock *> &BBs,
                                          Module *M) {
-  SmallString<128> Filename;
-  int FD;
-  std::error_code EC = sys::fs::createUniqueFile(
-      OutputPrefix + "-extractblocks%%%%%%%", FD, Filename);
-  if (EC) {
+  auto Temp = sys::fs::TempFile::create(OutputPrefix + "-extractblocks%%%%%%%");
+  if (!Temp) {
     outs() << "*** Basic Block extraction failed!\n";
-    errs() << "Error creating temporary file: " << EC.message() << "\n";
+    errs() << "Error creating temporary file: " << toString(Temp.takeError())
+           << "\n";
     EmitProgressBitcode(M, "basicblockextractfail", true);
     return nullptr;
   }
-  sys::RemoveFileOnSignal(Filename);
+  DiscardTemp Discard{*Temp};
 
-  ToolOutputFile BlocksToNotExtractFile(Filename.c_str(), FD);
+  raw_fd_ostream OS(Temp->FD, /*shouldClose*/ false);
   for (std::vector<BasicBlock *>::const_iterator I = BBs.begin(), E = BBs.end();
        I != E; ++I) {
     BasicBlock *BB = *I;
@@ -393,28 +391,24 @@ BugDriver::extractMappedBlocksFromModule(const std::vector<BasicBlock *> &BBs,
     // off of.
     if (!BB->hasName())
       BB->setName("tmpbb");
-    BlocksToNotExtractFile.os() << BB->getParent()->getName() << " "
-                                << BB->getName() << "\n";
+    OS << BB->getParent()->getName() << " " << BB->getName() << "\n";
   }
-  BlocksToNotExtractFile.os().close();
-  if (BlocksToNotExtractFile.os().has_error()) {
+  OS.flush();
+  if (OS.has_error()) {
     errs() << "Error writing list of blocks to not extract\n";
     EmitProgressBitcode(M, "basicblockextractfail", true);
-    BlocksToNotExtractFile.os().clear_error();
+    OS.clear_error();
     return nullptr;
   }
-  BlocksToNotExtractFile.keep();
 
   std::string uniqueFN = "--extract-blocks-file=";
-  uniqueFN += Filename.str();
+  uniqueFN += Temp->TmpName;
   const char *ExtraArg = uniqueFN.c_str();
 
   std::vector<std::string> PI;
   PI.push_back("extract-blocks");
   std::unique_ptr<Module> Ret = runPassesOn(M, PI, 1, &ExtraArg);
 
-  sys::fs::remove(Filename.c_str());
-
   if (!Ret) {
     outs() << "*** Basic Block extraction failed, please report a bug!\n";
     EmitProgressBitcode(M, "basicblockextractfail", true);

llvm/tools/bugpoint/OptimizerDriver.cpp

@@ -118,11 +118,6 @@ static cl::list<std::string> OptArgs("opt-args", cl::Positional,
                                      cl::desc("<opt arguments>..."),
                                      cl::ZeroOrMore, cl::PositionalEatsArgs);
 
-struct DiscardTemp {
-  sys::fs::TempFile &File;
-  ~DiscardTemp() { consumeError(File.discard()); }
-};
-
 /// runPasses - Run the specified passes on Program, outputting a bitcode file
 /// and writing the filename into OutputFile if successful.  If the
 /// optimizations fail for some reason (optimizer crashes), return true,