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MRegisterInfo.h - Added prototypes for functions we need to map a register to
an appropriate TargetRegisterClass, also adds TargetRegisterClass definition. TargetMachine.h - speling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4781 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -6,11 +6,14 @@
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_MREGISTERINFO_H
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#define LLVM_CODEGEN_MREGISTERINFO_H
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#ifndef LLVM_TARGET_MREGISTERINFO_H
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#define LLVM_TARGET_MREGISTERINFO_H
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#include "llvm/CodeGen/MachineBasicBlock.h"
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#include <assert.h>
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class Type;
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/// MRegisterDesc - This record contains all of the information known about a
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/// particular register.
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///
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@ -38,6 +41,30 @@ namespace MRF { // MRF = Machine Register Flags
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};
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};
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class TargetRegisterClass {
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protected:
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TargetRegisterClass() {}
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public:
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typedef unsigned* iterator;
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typedef unsigned* const_iterator;
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iterator begin();
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iterator end();
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const_iterator begin() const;
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const_iterator end() const;
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virtual unsigned getNumRegs() const { return 0; }
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virtual unsigned getRegister(unsigned idx) const { return 0; }
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virtual unsigned getDataSize() const { return 0; }
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//const std::vector<unsigned> &getRegsInClass(void) { return Regs; }
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//void getAliases(void);
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};
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/// MRegisterInfo base class - We assume that the target defines a static array
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/// of MRegisterDesc objects that represent all of the machine registers that
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/// the target has. As such, we simply have to track a pointer to this array so
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@ -79,8 +106,25 @@ public:
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///
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const MRegisterDesc &get(unsigned RegNo) const { return operator[](RegNo); }
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// This will eventually get some virtual methods...
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virtual void copyReg2PCRel(MachineBasicBlock *MBB,
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MachineBasicBlock::iterator &MBBI,
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unsigned SrcReg, unsigned ImmOffset,
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unsigned dataSize) const = 0;
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virtual void copyPCRel2Reg(MachineBasicBlock *MBB,
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MachineBasicBlock::iterator &MBBI,
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unsigned ImmOffset, unsigned DestReg,
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unsigned dataSize) const = 0;
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/// Register class iterators
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typedef const TargetRegisterClass* const_iterator;
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virtual const_iterator const_regclass_begin() const = 0;
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virtual const_iterator const_regclass_end() const = 0;
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virtual unsigned getNumRegClasses() const = 0;
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virtual const TargetRegisterClass* getRegClassForType(const Type* Ty) const=0;
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};
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#endif
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@ -1,4 +1,4 @@
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//===-- llvm/Target/Machine.h - General Target Information -------*- C++ -*-==//
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//===-- llvm/Target/TargetMachine.h - General Target Information -*- C++ -*-==//
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//
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// This file describes the general parts of a Target machine.
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//
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@ -68,7 +68,7 @@ public:
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virtual const MachineOptInfo& getOptInfo() const = 0;
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/// getRegisterInfo - If register information is available, return it. If
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/// not, return null. This is kept seperate from RegInfo until RegInfo gets
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/// not, return null. This is kept separate from RegInfo until RegInfo gets
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/// straightened out.
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///
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virtual const MRegisterInfo* getRegisterInfo() const { return 0; }
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