Move ARMMachObjectWriter to its own file.

Just tidy up a bit. No functional change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133638 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/ARM/ARM.h

@@ -27,6 +27,7 @@ class FunctionPass;
 class JITCodeEmitter;
 class formatted_raw_ostream;
 class MCCodeEmitter;
+class MCObjectWriter;
 class TargetAsmBackend;
 class MachineInstr;
 class ARMAsmPrinter;
@@ -58,6 +59,12 @@ extern Target TheARMTarget, TheThumbTarget;
 void LowerARMMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
                                   ARMAsmPrinter &AP);
 
+/// createARMMachObjectWriter - Construct an ARM Mach-O object writer.
+MCObjectWriter *createARMMachObjectWriter(raw_ostream &OS,
+                                          bool Is64Bit,
+                                          uint32_t CPUType,
+                                          uint32_t CPUSubtype);
+
 } // end namespace llvm;
 
 #endif

lib/Target/ARM/ARMAsmBackend.cpp

@@ -28,14 +28,6 @@
 using namespace llvm;
 
 namespace {
-class ARMMachObjectWriter : public MCMachObjectTargetWriter {
-public:
-  ARMMachObjectWriter(bool Is64Bit, uint32_t CPUType,
-                      uint32_t CPUSubtype)
-    : MCMachObjectTargetWriter(Is64Bit, CPUType, CPUSubtype,
-                               /*UseAggressiveSymbolFolding=*/true) {}
-};
-
 class ARMELFObjectWriter : public MCELFObjectTargetWriter {
 public:
   ARMELFObjectWriter(Triple::OSType OSType)
@@ -423,12 +415,9 @@ public:
     : ARMAsmBackend(T), Subtype(st) { }
 
   MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
-    return createMachObjectWriter(new ARMMachObjectWriter(
+    return createARMMachObjectWriter(OS, /*Is64Bit=*/false,
-                                    /*Is64Bit=*/false,
+                                     object::mach::CTM_ARM,
-                                    object::mach::CTM_ARM,
+                                     Subtype);
-                                    Subtype),
-                                  OS,
-                                  /*IsLittleEndian=*/true);
   }
 
   void ApplyFixup(const MCFixup &Fixup, char *Data, unsigned DataSize,

lib/Target/ARM/ARMMachObjectWriter.cpp

@@ -0,0 +1,32 @@
+//===-- ARMMachObjectWriter.cpp - ARM Mach Object Writer ------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ARM.h"
+#include "llvm/MC/MCMachObjectWriter.h"
+using namespace llvm;
+
+namespace {
+class ARMMachObjectWriter : public MCMachObjectTargetWriter {
+public:
+  ARMMachObjectWriter(bool Is64Bit, uint32_t CPUType,
+                      uint32_t CPUSubtype)
+    : MCMachObjectTargetWriter(Is64Bit, CPUType, CPUSubtype,
+                               /*UseAggressiveSymbolFolding=*/true) {}
+};
+}
+
+MCObjectWriter *llvm::createARMMachObjectWriter(raw_ostream &OS,
+                                                bool Is64Bit,
+                                                uint32_t CPUType,
+                                                uint32_t CPUSubtype) {
+  return createMachObjectWriter(new ARMMachObjectWriter(Is64Bit,
+                                                        CPUType,
+                                                        CPUSubtype),
+                                OS, /*IsLittleEndian=*/true);
+}

lib/Target/ARM/CMakeLists.txt

@@ -34,6 +34,7 @@ add_llvm_target(ARMCodeGen
   ARMISelLowering.cpp
   ARMInstrInfo.cpp
   ARMJITInfo.cpp
+  ARMMachObjectWriter.cpp
   ARMMCCodeEmitter.cpp
   ARMMCExpr.cpp
   ARMLoadStoreOptimizer.cpp