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https://github.com/c64scene-ar/llvm-6502.git
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027dcc5b22
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161 91177308-0d34-0410-b5e6-96231b3b80d8
105 lines
3.2 KiB
C++
105 lines
3.2 KiB
C++
//===-- llvm/iMemory.h - Memory Operator node definitions --------*- C++ -*--=//
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//
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// This file contains the declarations of all of the memory related operators.
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// This includes: malloc, free, alloca, load, store, getfield, putfield
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_IMEMORY_H
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#define LLVM_IMEMORY_H
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#include "llvm/Instruction.h"
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#include "llvm/DerivedTypes.h"
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class AllocationInst : public Instruction {
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public:
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AllocationInst(const Type *Ty, Value *ArraySize, unsigned iTy,
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const string &Name = "")
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: Instruction(Ty, iTy, Name) {
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assert(Ty->isPointerType() && "Can't allocate a non pointer type!");
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if (ArraySize) {
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// Make sure they didn't try to specify a size for !(unsized array) type
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assert((getType()->getValueType()->isArrayType() &&
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((const ArrayType*)getType()->getValueType())->isUnsized()) &&
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"Trying to allocate something other than unsized array, with size!");
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Operands.reserve(1);
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Operands.push_back(Use(ArraySize, this));
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}
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}
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// getType - Overload to return most specific pointer type...
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inline const PointerType *getType() const {
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return (const PointerType*)Instruction::getType();
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}
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virtual Instruction *clone() const = 0;
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};
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class MallocInst : public AllocationInst {
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public:
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MallocInst(const Type *Ty, Value *ArraySize = 0, const string &Name = "")
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: AllocationInst(Ty, ArraySize, Malloc, Name) {}
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virtual Instruction *clone() const {
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return new MallocInst(getType(), Operands.size() ? Operands[1] : 0);
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}
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virtual const char *getOpcodeName() const { return "malloc"; }
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};
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class AllocaInst : public AllocationInst {
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public:
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AllocaInst(const Type *Ty, Value *ArraySize = 0, const string &Name = "")
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: AllocationInst(Ty, ArraySize, Alloca, Name) {}
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virtual Instruction *clone() const {
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return new AllocaInst(getType(), Operands.size() ? Operands[1] : 0);
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}
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virtual const char *getOpcodeName() const { return "alloca"; }
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};
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class FreeInst : public Instruction {
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public:
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FreeInst(Value *Ptr, const string &Name = "")
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: Instruction(Type::VoidTy, Free, Name) {
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assert(Ptr->getType()->isPointerType() && "Can't free nonpointer!");
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Operands.reserve(1);
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Operands.push_back(Use(Ptr, this));
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}
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virtual Instruction *clone() const { return new FreeInst(Operands[0]); }
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virtual const char *getOpcodeName() const { return "free"; }
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};
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class LoadInst : public Instruction {
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LoadInst(const LoadInst &LI) : Instruction(LI.getType(), Load) {
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Operands.reserve(LI.Operands.size());
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for (unsigned i = 0, E = LI.Operands.size(); i != E; ++i)
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Operands.push_back(Use(LI.Operands[i], this));
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}
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public:
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LoadInst(Value *Ptr, const vector<ConstPoolVal*> &Idx,
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const string &Name = "");
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virtual Instruction *clone() const { return new LoadInst(*this); }
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virtual const char *getOpcodeName() const { return "load"; }
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// getIndexedType - Returns the type of the element that would be loaded with
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// a load instruction with the specified parameters.
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//
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// A null type is returned if the indices are invalid for the specified
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// pointer type.
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//
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static const Type *getIndexedType(const Type *Ptr,
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const vector<ConstPoolVal*> &);
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};
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#endif // LLVM_IMEMORY_H
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