Imported Upstream version 5.18.0.179

Former-commit-id: 67aa10e65b237e1c4537630979ee99ebe1374215

external/llvm/lib/Target/ARM/MCTargetDesc/ARMWinCOFFStreamer.cpp

@@ -0,0 +1,58 @@
+//===-- ARMWinCOFFStreamer.cpp - ARM 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 "ARMMCTargetDesc.h"
+#include "llvm/MC/MCAsmBackend.h"
+#include "llvm/MC/MCCodeEmitter.h"
+#include "llvm/MC/MCWinCOFFStreamer.h"
+
+using namespace llvm;
+
+namespace {
+class ARMWinCOFFStreamer : public MCWinCOFFStreamer {
+public:
+  ARMWinCOFFStreamer(MCContext &C, std::unique_ptr<MCAsmBackend> AB,
+                     std::unique_ptr<MCCodeEmitter> CE, raw_pwrite_stream &OS)
+      : MCWinCOFFStreamer(C, std::move(AB), std::move(CE), OS) {}
+
+  void EmitAssemblerFlag(MCAssemblerFlag Flag) override;
+  void EmitThumbFunc(MCSymbol *Symbol) override;
+  void FinishImpl() override;
+};
+
+void ARMWinCOFFStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {
+  switch (Flag) {
+  default: llvm_unreachable("not implemented");
+  case MCAF_SyntaxUnified:
+  case MCAF_Code16:
+    break;
+  }
+}
+
+void ARMWinCOFFStreamer::EmitThumbFunc(MCSymbol *Symbol) {
+  getAssembler().setIsThumbFunc(Symbol);
+}
+
+void ARMWinCOFFStreamer::FinishImpl() {
+  EmitFrames(nullptr);
+
+  MCWinCOFFStreamer::FinishImpl();
+}
+}
+
+MCStreamer *llvm::createARMWinCOFFStreamer(
+    MCContext &Context, std::unique_ptr<MCAsmBackend> &&MAB,
+    raw_pwrite_stream &OS, std::unique_ptr<MCCodeEmitter> &&Emitter,
+    bool RelaxAll, bool IncrementalLinkerCompatible) {
+  auto *S =
+      new ARMWinCOFFStreamer(Context, std::move(MAB), std::move(Emitter), OS);
+  S->getAssembler().setIncrementalLinkerCompatible(IncrementalLinkerCompatible);
+  return S;
+}
+