45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
//===-- TargetMachine.cpp - General Target Information ---------------------==//
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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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//---------------------------------------------------------------------------
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// class TargetMachine
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//
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// Purpose:
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// Machine description.
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//
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//---------------------------------------------------------------------------
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// function TargetMachine::findOptimalStorageSize
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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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// class TargetCacheInfo
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//
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// Purpose:
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// Describes properties of the target cache architecture.
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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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