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

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

llvm-svn: 315531

1 files changed, 4 insertions, 2 deletions

diff --git a/llvm/lib/MC/MCWasmStreamer.cpp b/llvm/lib/MC/MCWasmStreamer.cpp
index fdf1be67e4e..1262e891f5e 100644
--- a/llvm/lib/MC/MCWasmStreamer.cpp
+++ b/llvm/lib/MC/MCWasmStreamer.cpp
@@ -202,9 +202,11 @@ void MCWasmStreamer::FinishImpl() {
 
 MCStreamer *llvm::createWasmStreamer(MCContext &Context,
                                      std::unique_ptr<MCAsmBackend> &&MAB,
-                                     raw_pwrite_stream &OS, MCCodeEmitter *CE,
+                                     raw_pwrite_stream &OS,
+                                     std::unique_ptr<MCCodeEmitter> &&CE,
                                      bool RelaxAll) {
-  MCWasmStreamer *S = new MCWasmStreamer(Context, std::move(MAB), OS, CE);
+  MCWasmStreamer *S =
+      new MCWasmStreamer(Context, std::move(MAB), OS, std::move(CE));
   if (RelaxAll)
     S->getAssembler().setRelaxAll(true);
   return S;