1 files changed, 0 insertions, 193 deletions
diff --git a/lib/CodeGen/MachOCodeEmitter.cpp b/lib/CodeGen/MachOCodeEmitter.cpp
deleted file mode 100644
index 1318477..0000000
--- a/lib/CodeGen/MachOCodeEmitter.cpp
+++ /dev/null
@@ -1,193 +0,0 @@
-//===-- MachOEmitter.cpp - Target-independent Mach-O Emitter code --------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "MachO.h"
-#include "MachOWriter.h"
-#include "MachOCodeEmitter.h"
-#include "llvm/Constants.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Function.h"
-#include "llvm/CodeGen/MachineConstantPool.h"
-#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/CodeGen/MachineJumpTableInfo.h"
-#include "llvm/CodeGen/MachineRelocation.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/Target/TargetData.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/Mangler.h"
-#include "llvm/Support/OutputBuffer.h"
-#include <vector>
-
-//===----------------------------------------------------------------------===//
-//                       MachOCodeEmitter Implementation
-//===----------------------------------------------------------------------===//
-
-namespace llvm {
-
-MachOCodeEmitter::MachOCodeEmitter(MachOWriter &mow, MachOSection &mos) :
-      ObjectCodeEmitter(&mos), MOW(mow), TM(MOW.TM) {
-  is64Bit = TM.getTargetData()->getPointerSizeInBits() == 64;
-  isLittleEndian = TM.getTargetData()->isLittleEndian();
-  MAI = TM.getMCAsmInfo();
-}
-
-/// startFunction - This callback is invoked when a new machine function is
-/// about to be emitted.
-
-void MachOCodeEmitter::startFunction(MachineFunction &MF) {
-  const TargetData *TD = TM.getTargetData();
-  const Function *F = MF.getFunction();
-
-  // Align the output buffer to the appropriate alignment, power of 2.
-  unsigned FnAlign = F->getAlignment();
-  unsigned TDAlign = TD->getPrefTypeAlignment(F->getType());
-  unsigned Align = Log2_32(std::max(FnAlign, TDAlign));
-  assert(!(Align & (Align-1)) && "Alignment is not a power of two!");
-
-  // Get the Mach-O Section that this function belongs in.
-  MachOSection *MOS = MOW.getTextSection();
-  
-  // Upgrade the section alignment if required.
-  if (MOS->align < Align) MOS->align = Align;
-
-  MOS->emitAlignment(Align);
-
-  // Create symbol for function entry
-  const GlobalValue *FuncV = MF.getFunction();
-  MachOSym FnSym(FuncV, MOW.Mang->getMangledName(FuncV), MOS->Index, MAI);
-  FnSym.n_value = getCurrentPCOffset();
-
-  // add it to the symtab.
-  MOW.SymbolTable.push_back(FnSym);
-}
-
-/// finishFunction - This callback is invoked after the function is completely
-/// finished.
-
-bool MachOCodeEmitter::finishFunction(MachineFunction &MF) {
-    
-  // Get the Mach-O Section that this function belongs in.
-  MachOSection *MOS = MOW.getTextSection();
-
-  // Emit constant pool to appropriate section(s)
-  emitConstantPool(MF.getConstantPool());
-
-  // Emit jump tables to appropriate section
-  emitJumpTables(MF.getJumpTableInfo());
-  
-  // If we have emitted any relocations to function-specific objects such as 
-  // basic blocks, constant pools entries, or jump tables, record their
-  // addresses now so that we can rewrite them with the correct addresses
-  // later.
-  for (unsigned i = 0, e = Relocations.size(); i != e; ++i) {
-    MachineRelocation &MR = Relocations[i];
-    intptr_t Addr;
-
-    if (MR.isBasicBlock()) {
-      Addr = getMachineBasicBlockAddress(MR.getBasicBlock());
-      MR.setConstantVal(MOS->Index);
-      MR.setResultPointer((void*)Addr);
-    } else if (MR.isJumpTableIndex()) {
-      Addr = getJumpTableEntryAddress(MR.getJumpTableIndex());
-      MR.setConstantVal(MOW.getJumpTableSection()->Index);
-      MR.setResultPointer((void*)Addr);
-    } else if (MR.isConstantPoolIndex()) {
-      Addr = getConstantPoolEntryAddress(MR.getConstantPoolIndex());
-      MR.setConstantVal(CPSections[MR.getConstantPoolIndex()]);
-      MR.setResultPointer((void*)Addr);
-    } else if (MR.isGlobalValue()) {
-      // FIXME: This should be a set or something that uniques
-      MOW.PendingGlobals.push_back(MR.getGlobalValue());
-    } else {
-      llvm_unreachable("Unhandled relocation type");
-    }
-    MOS->addRelocation(MR);
-  }
-  Relocations.clear();
-
-  // Clear per-function data structures.
-  CPLocations.clear();
-  CPSections.clear();
-  JTLocations.clear();
-  MBBLocations.clear();
-
-  return false;
-}
-
-/// emitConstantPool - For each constant pool entry, figure out which section
-/// the constant should live in, allocate space for it, and emit it to the 
-/// Section data buffer.
-void MachOCodeEmitter::emitConstantPool(MachineConstantPool *MCP) {
-  const std::vector<MachineConstantPoolEntry> &CP = MCP->getConstants();
-  if (CP.empty()) return;
-
-  // FIXME: handle PIC codegen
-  assert(TM.getRelocationModel() != Reloc::PIC_ &&
-         "PIC codegen not yet handled for mach-o jump tables!");
-
-  // Although there is no strict necessity that I am aware of, we will do what
-  // gcc for OS X does and put each constant pool entry in a section of constant
-  // objects of a certain size.  That means that float constants go in the
-  // literal4 section, and double objects go in literal8, etc.
-  //
-  // FIXME: revisit this decision if we ever do the "stick everything into one
-  // "giant object for PIC" optimization.
-  for (unsigned i = 0, e = CP.size(); i != e; ++i) {
-    const Type *Ty = CP[i].getType();
-    unsigned Size = TM.getTargetData()->getTypeAllocSize(Ty);
-
-    MachOSection *Sec = MOW.getConstSection(CP[i].Val.ConstVal);
-    OutputBuffer SecDataOut(Sec->getData(), is64Bit, isLittleEndian);
-
-    CPLocations.push_back(Sec->size());
-    CPSections.push_back(Sec->Index);
-
-    // Allocate space in the section for the global.
-    // FIXME: need alignment?
-    // FIXME: share between here and AddSymbolToSection?
-    for (unsigned j = 0; j < Size; ++j)
-      SecDataOut.outbyte(0);
-
-    MachOWriter::InitMem(CP[i].Val.ConstVal, CPLocations[i],
-                         TM.getTargetData(), Sec);
-  }
-}
-
-/// emitJumpTables - Emit all the jump tables for a given jump table info
-/// record to the appropriate section.
-void MachOCodeEmitter::emitJumpTables(MachineJumpTableInfo *MJTI) {
-  const std::vector<MachineJumpTableEntry> &JT = MJTI->getJumpTables();
-  if (JT.empty()) return;
-
-  // FIXME: handle PIC codegen
-  assert(TM.getRelocationModel() != Reloc::PIC_ &&
-         "PIC codegen not yet handled for mach-o jump tables!");
-
-  MachOSection *Sec = MOW.getJumpTableSection();
-  unsigned TextSecIndex = MOW.getTextSection()->Index;
-  OutputBuffer SecDataOut(Sec->getData(), is64Bit, isLittleEndian);
-
-  for (unsigned i = 0, e = JT.size(); i != e; ++i) {
-    // For each jump table, record its offset from the start of the section,
-    // reserve space for the relocations to the MBBs, and add the relocations.
-    const std::vector<MachineBasicBlock*> &MBBs = JT[i].MBBs;
-    JTLocations.push_back(Sec->size());
-    for (unsigned mi = 0, me = MBBs.size(); mi != me; ++mi) {
-      MachineRelocation MR(MOW.GetJTRelocation(Sec->size(), MBBs[mi]));
-      MR.setResultPointer((void *)JTLocations[i]);
-      MR.setConstantVal(TextSecIndex);
-      Sec->addRelocation(MR);
-      SecDataOut.outaddr(0);
-    }
-  }
-}
-
-} // end namespace llvm
-