[MC] Thread unique_ptr<MCObjectWriter> through the create.*ObjectWriter

functions.

This makes the ownership of the resulting MCObjectWriter clear, and allows us
to remove one instance of MCObjectStreamer's bizarre "holding ownership via
someone else's reference" trick.

llvm-svn: 315327

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp b/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp
index a06b038d090..55151c2b8d2 100644
--- a/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp
+++ b/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp
@@ -430,9 +430,9 @@ void AArch64MachObjectWriter::recordRelocation(
   Writer->addRelocation(RelSymbol, Fragment->getParent(), MRE);
 }
 
-MCObjectWriter *llvm::createAArch64MachObjectWriter(raw_pwrite_stream &OS,
-                                                    uint32_t CPUType,
-                                                    uint32_t CPUSubtype) {
+std::unique_ptr<MCObjectWriter>
+llvm::createAArch64MachObjectWriter(raw_pwrite_stream &OS, uint32_t CPUType,
+                                    uint32_t CPUSubtype) {
   return createMachObjectWriter(
       llvm::make_unique<AArch64MachObjectWriter>(CPUType, CPUSubtype), OS,
       /*IsLittleEndian=*/true);