X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FTargetMachine.cpp;h=f50580332a65ace30c02494a9a0a0f569a5f56e1;hb=3d3067bf6bccc06ff2411caed50428f03dcd730d;hp=31277ff3cda384fc1d681f12609075a9d73cfcaa;hpb=4f9463772b10638c51226cbfb9b10e06f22d1cbc;p=oota-llvm.git diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp index 31277ff3cda..f50580332a6 100644 --- a/lib/Target/TargetMachine.cpp +++ b/lib/Target/TargetMachine.cpp @@ -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 @@ -26,70 +25,13 @@ // 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); - } -} - - -//--------------------------------------------------------------------------- -// 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 -} +unsigned TargetMachine::findOptimalStorageSize(const Type *Ty) const { + // Round integral values smaller than SubWordDataSize up to SubWordDataSize + if (Ty->isIntegral() && + Ty->getPrimitiveSize() < DataLayout.getSubWordDataSize()) + return DataLayout.getSubWordDataSize(); - -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; + return DataLayout.getTypeSize(Ty); } @@ -100,16 +42,7 @@ MachineInstrInfo::constantFitsInImmedField(MachineOpCode opCode, // 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);