1 files changed, 60 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/X86/MCTargetDesc/X86WinCOFFStreamer.cpp b/contrib/llvm/lib/Target/X86/MCTargetDesc/X86WinCOFFStreamer.cpp
new file mode 100644
index 0000000..d045118
--- /dev/null
+++ b/contrib/llvm/lib/Target/X86/MCTargetDesc/X86WinCOFFStreamer.cpp
@@ -0,0 +1,60 @@
+//===-- X86WinCOFFStreamer.cpp - X86 Target WinCOFF Streamer ----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "X86MCTargetDesc.h"
+#include "llvm/MC/MCWin64EH.h"
+#include "llvm/MC/MCWinCOFFStreamer.h"
+
+using namespace llvm;
+
+namespace {
+class X86WinCOFFStreamer : public MCWinCOFFStreamer {
+  Win64EH::UnwindEmitter EHStreamer;
+public:
+  X86WinCOFFStreamer(MCContext &C, MCAsmBackend &AB, MCCodeEmitter *CE,
+                     raw_pwrite_stream &OS)
+      : MCWinCOFFStreamer(C, AB, *CE, OS) {}
+
+  void EmitWinEHHandlerData() override;
+  void EmitWindowsUnwindTables() override;
+  void FinishImpl() override;
+};
+
+void X86WinCOFFStreamer::EmitWinEHHandlerData() {
+  MCStreamer::EmitWinEHHandlerData();
+
+  // We have to emit the unwind info now, because this directive
+  // actually switches to the .xdata section!
+  EHStreamer.EmitUnwindInfo(*this, getCurrentWinFrameInfo());
+}
+
+void X86WinCOFFStreamer::EmitWindowsUnwindTables() {
+  if (!getNumWinFrameInfos())
+    return;
+  EHStreamer.Emit(*this);
+}
+
+void X86WinCOFFStreamer::FinishImpl() {
+  EmitFrames(nullptr);
+  EmitWindowsUnwindTables();
+
+  MCWinCOFFStreamer::FinishImpl();
+}
+}
+
+MCStreamer *llvm::createX86WinCOFFStreamer(MCContext &C, MCAsmBackend &AB,
+                                           raw_pwrite_stream &OS,
+                                           MCCodeEmitter *CE, bool RelaxAll,
+                                           bool IncrementalLinkerCompatible) {
+  X86WinCOFFStreamer *S = new X86WinCOFFStreamer(C, AB, CE, OS);
+  S->getAssembler().setRelaxAll(RelaxAll);
+  S->getAssembler().setIncrementalLinkerCompatible(IncrementalLinkerCompatible);
+  return S;
+}
+