forked from OSchip/llvm-project
64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
//===-- TargetMachine.cpp - General Target Information ---------------------==//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file describes the general parts of a Target machine.
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// This file also implements TargetCacheInfo.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Target/TargetMachine.h"
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#include "llvm/Target/TargetCacheInfo.h"
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#include "llvm/Type.h"
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#include "llvm/IntrinsicLowering.h"
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using namespace llvm;
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//---------------------------------------------------------------------------
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// TargetMachine Class
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//
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TargetMachine::TargetMachine(const std::string &name, IntrinsicLowering *il,
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bool LittleEndian,
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unsigned char PtrSize, unsigned char PtrAl,
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unsigned char DoubleAl, unsigned char FloatAl,
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unsigned char LongAl, unsigned char IntAl,
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unsigned char ShortAl, unsigned char ByteAl)
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: Name(name), DataLayout(name, LittleEndian,
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PtrSize, PtrAl, DoubleAl, FloatAl, LongAl,
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IntAl, ShortAl, ByteAl) {
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IL = il ? il : new DefaultIntrinsicLowering();
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}
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TargetMachine::~TargetMachine() {
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delete IL;
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}
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unsigned TargetMachine::findOptimalStorageSize(const Type *Ty) const {
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// All integer types smaller than ints promote to 4 byte integers.
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if (Ty->isIntegral() && Ty->getPrimitiveSize() < 4)
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return 4;
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return DataLayout.getTypeSize(Ty);
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}
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//---------------------------------------------------------------------------
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// TargetCacheInfo Class
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//
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void TargetCacheInfo::Initialize() {
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numLevels = 2;
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cacheLineSizes.push_back(16); cacheLineSizes.push_back(32);
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cacheSizes.push_back(1 << 15); cacheSizes.push_back(1 << 20);
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cacheAssoc.push_back(1); cacheAssoc.push_back(4);
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}
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