* Use LI(S) to copy constants into registers intead of ADDI(S) as the latter is

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

diff --git a/lib/Target/TargetInstrInfo.cpp b/lib/Target/TargetInstrInfo.cpp
index 5dca701be8e7dd33d86f09a1ef21751746eaa6fd..efcf9db4eb7ee997dc523796981e108ab3e9aff0 100644 (file)
--- a/lib/Target/TargetInstrInfo.cpp
+++ b/lib/Target/TargetInstrInfo.cpp
@@ -1,44 +1,43 @@
-//===-- MachineInstrInfo.cpp - Target Instruction Information -------------===//
+//===-- TargetInstrInfo.cpp - Target Instruction Information --------------===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
 //
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm/Target/MachineInstrInfo.h"
+#include "llvm/Target/TargetInstrInfo.h"
 #include "llvm/CodeGen/MachineInstr.h"
 #include "llvm/Constant.h"
 #include "llvm/DerivedTypes.h"
 
+namespace llvm {
+
 // External object describing the machine instructions
 // Initialized only when the TargetMachine class is created
 // and reset when that class is destroyed.
 // 
-const MachineInstrDescriptor* TargetInstrDescriptors = 0;
+const TargetInstrDescriptor* TargetInstrDescriptors = 0;
 
-//---------------------------------------------------------------------------
-// class MachineInstructionInfo
-//     Interface to description of machine instructions
-//---------------------------------------------------------------------------
-
-
-MachineInstrInfo::MachineInstrInfo(const MachineInstrDescriptor* Desc,
-                                  unsigned DescSize,
-                                  unsigned NumRealOpCodes)
-  : desc(Desc), descSize(DescSize), numRealOpCodes(NumRealOpCodes) {
+TargetInstrInfo::TargetInstrInfo(const TargetInstrDescriptor* Desc,
+                                unsigned numOpcodes)
+  : desc(Desc), NumOpcodes(numOpcodes) {
   // FIXME: TargetInstrDescriptors should not be global
-  assert(TargetInstrDescriptors == NULL && desc != NULL);
+  assert(TargetInstrDescriptors == NULL && desc != NULL
+         && "TargetMachine data structure corrupt; maybe you tried to create another TargetMachine? (only one may exist in a program)");
   TargetInstrDescriptors = desc;       // initialize global variable
 }
 
-MachineInstrInfo::~MachineInstrInfo() {
+TargetInstrInfo::~TargetInstrInfo() {
   TargetInstrDescriptors = NULL;       // reset global variable
 }
 
-void MachineInstrInfo::print(const MachineInstr *MI, std::ostream &O) const {
-  O << *MI;
-}
-
-bool MachineInstrInfo::constantFitsInImmedField(MachineOpCode opCode,
-                                                int64_t intValue) const {
+bool TargetInstrInfo::constantFitsInImmedField(MachineOpCode opCode,
+                                              int64_t intValue) const {
   // First, check if opCode has an immed field.
   bool isSignExtended;
   uint64_t maxImmedValue = maxImmedConstant(opCode, isSignExtended);
@@ -57,7 +56,9 @@ bool MachineInstrInfo::constantFitsInImmedField(MachineOpCode opCode,
   return false;
 }
 
-bool MachineInstrInfo::ConstantTypeMustBeLoaded(const Constant* CV) const {
+bool TargetInstrInfo::ConstantTypeMustBeLoaded(const Constant* CV) const {
   assert(CV->getType()->isPrimitiveType() || isa<PointerType>(CV->getType()));
   return !(CV->getType()->isIntegral() || isa<PointerType>(CV->getType()));
 }
+
+} // End llvm namespace