| //===-- TargetMachine.cpp - General Target 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. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file describes the general parts of a Target machine. |
| // This file also implements TargetCacheInfo. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/Target/TargetMachine.h" |
| #include "llvm/Target/TargetCacheInfo.h" |
| #include "llvm/Type.h" |
| |
| namespace llvm { |
| |
| //--------------------------------------------------------------------------- |
| // class TargetMachine |
| // |
| // Purpose: |
| // Machine description. |
| // |
| //--------------------------------------------------------------------------- |
| |
| |
| // function TargetMachine::findOptimalStorageSize |
| // |
| unsigned TargetMachine::findOptimalStorageSize(const Type *Ty) const { |
| // All integer types smaller than ints promote to 4 byte integers. |
| if (Ty->isIntegral() && Ty->getPrimitiveSize() < 4) |
| return 4; |
| |
| return DataLayout.getTypeSize(Ty); |
| } |
| |
| |
| //--------------------------------------------------------------------------- |
| // class TargetCacheInfo |
| // |
| // Purpose: |
| // Describes properties of the target cache architecture. |
| //--------------------------------------------------------------------------- |
| |
| void TargetCacheInfo::Initialize() { |
| numLevels = 2; |
| cacheLineSizes.push_back(16); cacheLineSizes.push_back(32); |
| cacheSizes.push_back(1 << 15); cacheSizes.push_back(1 << 20); |
| cacheAssoc.push_back(1); cacheAssoc.push_back(4); |
| } |
| |
| } // End llvm namespace |