[llvm-commits] CVS: llvm/lib/Target/MachineInstrInfo.cpp TargetMachine.cpp

Chris Lattner lattner at cs.uiuc.edu
Mon Oct 28 17:56:00 PST 2002


Changes in directory llvm/lib/Target:

MachineInstrInfo.cpp added (r1.1)
TargetMachine.cpp updated: 1.14 -> 1.15

---
Log message:

Seperate code out of TargetMachine into MachineInstrInfo


---
Diffs of the changes:

Index: llvm/lib/Target/TargetMachine.cpp
diff -u llvm/lib/Target/TargetMachine.cpp:1.14 llvm/lib/Target/TargetMachine.cpp:1.15
--- llvm/lib/Target/TargetMachine.cpp:1.14	Sun Oct 27 19:03:41 2002
+++ llvm/lib/Target/TargetMachine.cpp	Mon Oct 28 17:55:33 2002
@@ -1,14 +1,13 @@
 //===-- TargetMachine.cpp - General Target Information ---------------------==//
 //
 // This file describes the general parts of a Target machine.
-// This file also implements MachineInstrInfo and MachineCacheInfo.
+// This file also implements MachineCacheInfo.
 //
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/MachineInstrInfo.h"
 #include "llvm/Target/MachineCacheInfo.h"
-#include "llvm/Function.h"
+#include "llvm/Type.h"
 
 //---------------------------------------------------------------------------
 // class TargetMachine
@@ -45,71 +44,13 @@
 
 
 //---------------------------------------------------------------------------
-// class MachineInstructionInfo
-//	Interface to description of machine instructions
-//---------------------------------------------------------------------------
-
-
-/*ctor*/
-MachineInstrInfo::MachineInstrInfo(const TargetMachine& tgt,
-                                   const MachineInstrDescriptor* _desc,
-				   unsigned int _descSize,
-				   unsigned int _numRealOpCodes)
-  : target(tgt),
-    desc(_desc), descSize(_descSize), numRealOpCodes(_numRealOpCodes)
-{
-  // FIXME: TargetInstrDescriptors should not be global
-  assert(TargetInstrDescriptors == NULL && desc != NULL);
-  TargetInstrDescriptors = desc;	// initialize global variable
-}  
-
-
-MachineInstrInfo::~MachineInstrInfo()
-{
-  TargetInstrDescriptors = NULL;	// reset global variable
-}
-
-
-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)
-    {
-      // NEED TO HANDLE UNSIGNED VALUES SINCE THEY MAY BECOME MUCH
-      // SMALLER AFTER CASTING TO SIGN-EXTENDED int, short, or char.
-      // See CreateUIntSetInstruction in SparcInstrInfo.cpp.
-      
-      // Now check if the constant fits
-      if (intValue <= (int64_t) maxImmedValue &&
-	  intValue >= -((int64_t) maxImmedValue+1))
-	return true;
-    }
-  
-  return false;
-}
-
-
-//---------------------------------------------------------------------------
 // class MachineCacheInfo 
 // 
 // Purpose:
 //   Describes properties of the target cache architecture.
 //---------------------------------------------------------------------------
 
-/*ctor*/
-MachineCacheInfo::MachineCacheInfo(const TargetMachine& tgt)
-  : target(tgt)
-{
-  Initialize();
-}
-
-void
-MachineCacheInfo::Initialize()
-{
+void MachineCacheInfo::Initialize() {
   numLevels = 2;
   cacheLineSizes.push_back(16);  cacheLineSizes.push_back(32); 
   cacheSizes.push_back(1 << 15); cacheSizes.push_back(1 << 20);





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