Make all pointers to TargetRegisterClass const since they are all pointers to static...

[oota-llvm.git] / lib / Target / TargetMachine.cpp

diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp
index ec264829b166452d4f77b27ac01b2ece3c499315..b4969ca011b71b2c4c016b49917eb64d5f2f5498 100644 (file)
--- a/lib/Target/TargetMachine.cpp
+++ b/lib/Target/TargetMachine.cpp
@@ -1,78 +1,108 @@
 //===-- TargetMachine.cpp - General Target Information ---------------------==//
 //
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
 // This file describes the general parts of a Target machine.
-// This file also implements the InstInfo interface as well...
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm/Target/InstInfo.h"
-#include "llvm/DerivedTypes.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetOptions.h"
+#include "llvm/Support/CommandLine.h"
+using namespace llvm;
 
 //---------------------------------------------------------------------------
-// class TargetMachine
-// 
-// Purpose:
-//   Machine description.
-// 
-//---------------------------------------------------------------------------
+// Command-line options that tend to be useful on more than one back-end.
+//
 
-// function TargetMachine::findOptimalStorageSize 
-// 
-// Purpose:
-//   This default implementation assumes that all sub-word data items use
-//   space equal to optSizeForSubWordData, and all other primitive data
-//   items use space according to the type.
-//   
-unsigned int TargetMachine::findOptimalStorageSize(const Type* ty) const {
-  switch(ty->getPrimitiveID()) {
-  case Type::BoolTyID:
-  case Type::UByteTyID:
-  case Type::SByteTyID:     
-  case Type::UShortTyID:
-  case Type::ShortTyID:     
-    return optSizeForSubWordData;
-    
-  default:
-    return DataLayout.getTypeSize(ty);
-  }
+namespace llvm {
+  bool HasDivModLibcall;
+  bool AsmVerbosityDefault(false);
 }
 
+static cl::opt<bool>
+DataSections("fdata-sections",
+  cl::desc("Emit data into separate sections"),
+  cl::init(false));
+static cl::opt<bool>
+FunctionSections("ffunction-sections",
+  cl::desc("Emit functions into separate sections"),
+  cl::init(false));
 
 //---------------------------------------------------------------------------
-// class MachineInstructionInfo
-//     Interface to description of machine instructions
-//---------------------------------------------------------------------------
+// TargetMachine Class
+//
 
+TargetMachine::TargetMachine(const Target &T,
+                             StringRef TT, StringRef CPU, StringRef FS,
+                             const TargetOptions &Options)
+  : TheTarget(T), TargetTriple(TT), TargetCPU(CPU), TargetFS(FS),
+    CodeGenInfo(0), AsmInfo(0),
+    MCRelaxAll(false),
+    MCNoExecStack(false),
+    MCSaveTempLabels(false),
+    MCUseLoc(true),
+    MCUseCFI(true),
+    MCUseDwarfDirectory(false),
+    Options(Options) {
+}
 
-/*ctor*/
-MachineInstrInfo::MachineInstrInfo(const MachineInstrDescriptor* _desc,
-                                  unsigned int _descSize,
-                                  unsigned int _numRealOpCodes)
-  : desc(_desc), descSize(_descSize), numRealOpCodes(_numRealOpCodes)
-{
-  assert(TargetInstrDescriptors == NULL && desc != NULL);
-  TargetInstrDescriptors = desc;       // initialize global variable
-}  
+TargetMachine::~TargetMachine() {
+  delete CodeGenInfo;
+  delete AsmInfo;
+}
 
+/// getRelocationModel - Returns the code generation relocation model. The
+/// choices are static, PIC, and dynamic-no-pic, and target default.
+Reloc::Model TargetMachine::getRelocationModel() const {
+  if (!CodeGenInfo)
+    return Reloc::Default;
+  return CodeGenInfo->getRelocationModel();
+}
 
-MachineInstrInfo::~MachineInstrInfo() {
-  TargetInstrDescriptors = NULL;       // reset global variable
+/// getCodeModel - Returns the code model. The choices are small, kernel,
+/// medium, large, and target default.
+CodeModel::Model TargetMachine::getCodeModel() const {
+  if (!CodeGenInfo)
+    return CodeModel::Default;
+  return CodeGenInfo->getCodeModel();
 }
 
+/// getOptLevel - Returns the optimization level: None, Less,
+/// Default, or Aggressive.
+CodeGenOpt::Level TargetMachine::getOptLevel() const {
+  if (!CodeGenInfo)
+    return CodeGenOpt::Default;
+  return CodeGenInfo->getOptLevel();
+}
 
-bool
-MachineInstrInfo::constantFitsInImmedField(MachineOpCode opCode,
-                                          int64_t intValue) const
-{
-  // First, check if opCode has an immed field.
-  bool isSignExtended;
-  uint64_t maxImmedValue = maxImmedConstant(opCode, isSignExtended);
-  if (maxImmedValue != 0) {
-    // Now check if the constant fits
-    if (intValue <= (int64_t) maxImmedValue &&
-       intValue >= -((int64_t) maxImmedValue+1))
-      return true;
-  }
-  
-  return false;
+bool TargetMachine::getAsmVerbosityDefault() {
+  return AsmVerbosityDefault;
 }
+
+void TargetMachine::setAsmVerbosityDefault(bool V) {
+  AsmVerbosityDefault = V;
+}
+
+bool TargetMachine::getFunctionSections() {
+  return FunctionSections;
+}
+
+bool TargetMachine::getDataSections() {
+  return DataSections;
+}
+
+void TargetMachine::setFunctionSections(bool V) {
+  FunctionSections = V;
+}
+
+void TargetMachine::setDataSections(bool V) {
+  DataSections = V;
+}
+