Rebased PNaCl localmods in LLVM to 223109

include/llvm/Analysis/NaCl.h

+//===-- NaCl.h - NaCl Analysis ---------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_ANALYSIS_NACL_H
+#define LLVM_ANALYSIS_NACL_H
+
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/raw_ostream.h"
+#include <string>
+
+namespace llvm {
+
+class FunctionPass;
+class ModulePass;
+extern cl::opt<bool> PNaClABIAllowDebugMetadata;
+
+class PNaClABIErrorReporter {
+  PNaClABIErrorReporter(const PNaClABIErrorReporter&) LLVM_DELETED_FUNCTION;
+  void operator=(const PNaClABIErrorReporter&) LLVM_DELETED_FUNCTION;
+ public:
+  PNaClABIErrorReporter() : ErrorCount(0), Errors(ErrorString),
+                            UseFatalErrors(true) {}
+  ~PNaClABIErrorReporter() {}
+  // Return the number of verification errors from the last run.
+  int getErrorCount() const { return ErrorCount; }
+  // Print the error messages to O
+  void printErrors(llvm::raw_ostream &O) {
+    Errors.flush();
+    O << ErrorString;
+  }
+  // Increments the error count and returns an ostream to which the error
+  // message can be streamed.
+  raw_ostream &addError() {
+    ErrorCount++;
+    return Errors;
+  }
+  // Reset the error count and error messages.
+  void reset() {
+    ErrorCount = 0;
+    Errors.flush();
+    ErrorString.clear();
+  }
+  void setNonFatal() {
+    UseFatalErrors = false;
+  }
+  void checkForFatalErrors() {
+    if (UseFatalErrors && ErrorCount != 0) {
+      printErrors(errs());
+      report_fatal_error("PNaCl ABI verification failed");
+    }
+  }
+ private:
+  int ErrorCount;
+  std::string ErrorString;
+  raw_string_ostream Errors;
+  bool UseFatalErrors;
+};
+
+FunctionPass *createPNaClABIVerifyFunctionsPass(
+    PNaClABIErrorReporter *Reporter);
+ModulePass *createPNaClABIVerifyModulePass(PNaClABIErrorReporter *Reporter,
+                                           bool StreamingMode = false);
+
+}
+
+
+#endif