1 files changed, 82 insertions, 0 deletions
diff --git a/llvm/lib/TableGen/Error.cpp b/llvm/lib/TableGen/Error.cpp
new file mode 100644
index 000000000000..54b063cb4f8d
--- /dev/null
+++ b/llvm/lib/TableGen/Error.cpp
@@ -0,0 +1,82 @@
+//===- Error.cpp - tblgen error handling helper routines --------*- C++ -*-===//
+//
+// 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 file contains error handling helper routines to pretty-print diagnostic
+// messages from tblgen.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/TableGen/Error.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/WithColor.h"
+#include "llvm/Support/raw_ostream.h"
+#include <cstdlib>
+
+namespace llvm {
+
+SourceMgr SrcMgr;
+unsigned ErrorsPrinted = 0;
+
+static void PrintMessage(ArrayRef<SMLoc> Loc, SourceMgr::DiagKind Kind,
+                         const Twine &Msg) {
+  // Count the total number of errors printed.
+  // This is used to exit with an error code if there were any errors.
+  if (Kind == SourceMgr::DK_Error)
+    ++ErrorsPrinted;
+
+  SMLoc NullLoc;
+  if (Loc.empty())
+    Loc = NullLoc;
+  SrcMgr.PrintMessage(Loc.front(), Kind, Msg);
+  for (unsigned i = 1; i < Loc.size(); ++i)
+    SrcMgr.PrintMessage(Loc[i], SourceMgr::DK_Note,
+                        "instantiated from multiclass");
+}
+
+void PrintNote(const Twine &Msg) { WithColor::note() << Msg << "\n"; }
+
+void PrintNote(ArrayRef<SMLoc> NoteLoc, const Twine &Msg) {
+  PrintMessage(NoteLoc, SourceMgr::DK_Note, Msg);
+}
+
+void PrintWarning(ArrayRef<SMLoc> WarningLoc, const Twine &Msg) {
+  PrintMessage(WarningLoc, SourceMgr::DK_Warning, Msg);
+}
+
+void PrintWarning(const char *Loc, const Twine &Msg) {
+  SrcMgr.PrintMessage(SMLoc::getFromPointer(Loc), SourceMgr::DK_Warning, Msg);
+}
+
+void PrintWarning(const Twine &Msg) { WithColor::warning() << Msg << "\n"; }
+
+void PrintError(ArrayRef<SMLoc> ErrorLoc, const Twine &Msg) {
+  PrintMessage(ErrorLoc, SourceMgr::DK_Error, Msg);
+}
+
+void PrintError(const char *Loc, const Twine &Msg) {
+  SrcMgr.PrintMessage(SMLoc::getFromPointer(Loc), SourceMgr::DK_Error, Msg);
+}
+
+void PrintError(const Twine &Msg) { WithColor::error() << Msg << "\n"; }
+
+void PrintFatalError(const Twine &Msg) {
+  PrintError(Msg);
+  // The following call runs the file cleanup handlers.
+  sys::RunInterruptHandlers();
+  std::exit(1);
+}
+
+void PrintFatalError(ArrayRef<SMLoc> ErrorLoc, const Twine &Msg) {
+  PrintError(ErrorLoc, Msg);
+  // The following call runs the file cleanup handlers.
+  sys::RunInterruptHandlers();
+  std::exit(1);
+}
+
+} // end namespace llvm