MC: Separate creating a generic object writer from creating a target object writer. NFCI.

With this we gain a little flexibility in how the generic object
writer is created.

Part of PR37466.

Differential Revision: https://reviews.llvm.org/D47045

llvm-svn: 332868

3 files changed, 9 insertions, 13 deletions

diff --git a/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp b/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp
index d131d4dc13e..2ef4655a889 100644
--- a/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp
+++ b/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp
@@ -291,11 +291,10 @@ namespace {
       }
     }
 
-    std::unique_ptr<MCObjectWriter>
-    createObjectWriter(raw_pwrite_stream &OS) const override {
+    std::unique_ptr<MCObjectTargetWriter>
+    createObjectTargetWriter() const override {
       uint8_t OSABI = MCELFObjectTargetWriter::getOSABI(OSType);
-      return createSparcELFObjectWriter(OS, Is64Bit,
-                                        Endian == support::little, OSABI);
+      return createSparcELFObjectWriter(Is64Bit, OSABI);
     }
   };
 
diff --git a/llvm/lib/Target/Sparc/MCTargetDesc/SparcELFObjectWriter.cpp b/llvm/lib/Target/Sparc/MCTargetDesc/SparcELFObjectWriter.cpp
index a204036a097..173ef8674c1 100644
--- a/llvm/lib/Target/Sparc/MCTargetDesc/SparcELFObjectWriter.cpp
+++ b/llvm/lib/Target/Sparc/MCTargetDesc/SparcELFObjectWriter.cpp
@@ -132,9 +132,7 @@ bool SparcELFObjectWriter::needsRelocateWithSymbol(const MCSymbol &Sym,
   }
 }
 
-std::unique_ptr<MCObjectWriter>
-llvm::createSparcELFObjectWriter(raw_pwrite_stream &OS, bool Is64Bit,
-                                 bool IsLittleEndian, uint8_t OSABI) {
-  auto MOTW = llvm::make_unique<SparcELFObjectWriter>(Is64Bit, OSABI);
-  return createELFObjectWriter(std::move(MOTW), OS, IsLittleEndian);
+std::unique_ptr<MCObjectTargetWriter>
+llvm::createSparcELFObjectWriter(bool Is64Bit, uint8_t OSABI) {
+  return llvm::make_unique<SparcELFObjectWriter>(Is64Bit, OSABI);
 }
diff --git a/llvm/lib/Target/Sparc/MCTargetDesc/SparcMCTargetDesc.h b/llvm/lib/Target/Sparc/MCTargetDesc/SparcMCTargetDesc.h
index 8390198479b..3cd24104c44 100644
--- a/llvm/lib/Target/Sparc/MCTargetDesc/SparcMCTargetDesc.h
+++ b/llvm/lib/Target/Sparc/MCTargetDesc/SparcMCTargetDesc.h
@@ -23,7 +23,7 @@ class MCAsmBackend;
 class MCCodeEmitter;
 class MCContext;
 class MCInstrInfo;
-class MCObjectWriter;
+class MCObjectTargetWriter;
 class MCRegisterInfo;
 class MCSubtargetInfo;
 class MCTargetOptions;
@@ -43,9 +43,8 @@ MCCodeEmitter *createSparcMCCodeEmitter(const MCInstrInfo &MCII,
 MCAsmBackend *createSparcAsmBackend(const Target &T, const MCSubtargetInfo &STI,
                                     const MCRegisterInfo &MRI,
                                     const MCTargetOptions &Options);
-std::unique_ptr<MCObjectWriter>
-createSparcELFObjectWriter(raw_pwrite_stream &OS, bool Is64Bit,
-                           bool IsLIttleEndian, uint8_t OSABI);
+std::unique_ptr<MCObjectTargetWriter> createSparcELFObjectWriter(bool Is64Bit,
+                                                                 uint8_t OSABI);
 } // End llvm namespace
 
 // Defines symbolic names for Sparc registers.  This defines a mapping from