[MC] Have MCObjectStreamer take its MCAsmBackend argument via unique_ptr.

MCObjectStreamer owns its MCAsmBackend -- this fixes the types to reflect that,
and allows us to remove another instance of MCObjectStreamer's weird "holding
ownership via someone else's reference" trick.

llvm-svn: 315410

1 files changed, 5 insertions, 3 deletions

diff --git a/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUELFStreamer.h b/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUELFStreamer.h
index 386aa56c807..2de1786d348 100644
--- a/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUELFStreamer.h
+++ b/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUELFStreamer.h
@@ -25,12 +25,14 @@ class MCSubtargetInfo;
 
 class AMDGPUELFStreamer : public MCELFStreamer {
 public:
-  AMDGPUELFStreamer(const Triple &T, MCContext &Context, MCAsmBackend &MAB,
-                    raw_pwrite_stream &OS, MCCodeEmitter *Emitter);
+  AMDGPUELFStreamer(const Triple &T, MCContext &Context,
+                    std::unique_ptr<MCAsmBackend> MAB, raw_pwrite_stream &OS,
+                    MCCodeEmitter *Emitter);
 };
 
 MCELFStreamer *createAMDGPUELFStreamer(const Triple &T, MCContext &Context,
-                                       MCAsmBackend &MAB, raw_pwrite_stream &OS,
+                                       std::unique_ptr<MCAsmBackend> MAB,
+                                       raw_pwrite_stream &OS,
                                        MCCodeEmitter *Emitter, bool RelaxAll);
 } // namespace llvm.