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, 12 deletions

diff --git a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonAsmBackend.cpp b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonAsmBackend.cpp
index 97dd99eb2a1..2bbdfb95970 100644
--- a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonAsmBackend.cpp
+++ b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonAsmBackend.cpp
@@ -66,9 +66,9 @@ public:
         MCII(T.createMCInstrInfo()), RelaxTarget(new MCInst *),
         Extender(nullptr) {}
 
-  std::unique_ptr<MCObjectWriter>
-  createObjectWriter(raw_pwrite_stream &OS) const override {
-    return createHexagonELFObjectWriter(OS, OSABI, CPU);
+  std::unique_ptr<MCObjectTargetWriter>
+  createObjectTargetWriter() const override {
+    return createHexagonELFObjectWriter(OSABI, CPU);
   }
 
   void setExtender(MCContext &Context) const {
diff --git a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonELFObjectWriter.cpp b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonELFObjectWriter.cpp
index 12aa1bd9b2a..e82e6b559f6 100644
--- a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonELFObjectWriter.cpp
+++ b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonELFObjectWriter.cpp
@@ -298,9 +298,7 @@ unsigned HexagonELFObjectWriter::getRelocType(MCContext &Ctx,
   }
 }
 
-std::unique_ptr<MCObjectWriter>
-llvm::createHexagonELFObjectWriter(raw_pwrite_stream &OS, uint8_t OSABI,
-                                   StringRef CPU) {
-  auto MOTW = llvm::make_unique<HexagonELFObjectWriter>(OSABI, CPU);
-  return createELFObjectWriter(std::move(MOTW), OS, /*IsLittleEndian*/ true);
+std::unique_ptr<MCObjectTargetWriter>
+llvm::createHexagonELFObjectWriter(uint8_t OSABI, StringRef CPU) {
+  return llvm::make_unique<HexagonELFObjectWriter>(OSABI, CPU);
 }
diff --git a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.h b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.h
index 71545a5c02c..6cd1b3a4691 100644
--- a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.h
+++ b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.h
@@ -27,7 +27,7 @@ class MCAsmBackend;
 class MCCodeEmitter;
 class MCContext;
 class MCInstrInfo;
-class MCObjectWriter;
+class MCObjectTargetWriter;
 class MCRegisterInfo;
 class MCSubtargetInfo;
 class MCTargetOptions;
@@ -65,9 +65,8 @@ MCAsmBackend *createHexagonAsmBackend(const Target &T,
                                       const MCRegisterInfo &MRI,
                                       const MCTargetOptions &Options);
 
-std::unique_ptr<MCObjectWriter>
-createHexagonELFObjectWriter(raw_pwrite_stream &OS, uint8_t OSABI,
-                             StringRef CPU);
+std::unique_ptr<MCObjectTargetWriter>
+createHexagonELFObjectWriter(uint8_t OSABI, StringRef CPU);
 
 unsigned HexagonGetLastSlot();