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Diffstat (limited to 'lib/CodeGen/SelectionDAG/FunctionLoweringInfo.h')
-rw-r--r-- | lib/CodeGen/SelectionDAG/FunctionLoweringInfo.h | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.h b/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.h deleted file mode 100644 index 4067a5b..0000000 --- a/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.h +++ /dev/null @@ -1,144 +0,0 @@ -//===-- FunctionLoweringInfo.h - Lower functions from LLVM IR to CodeGen --===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This implements routines for translating functions from LLVM IR into -// Machine IR. -// -//===----------------------------------------------------------------------===// - -#ifndef FUNCTIONLOWERINGINFO_H -#define FUNCTIONLOWERINGINFO_H - -#include "llvm/InlineAsm.h" -#include "llvm/Instructions.h" -#include "llvm/ADT/APInt.h" -#include "llvm/ADT/DenseMap.h" -#include "llvm/ADT/SmallVector.h" -#ifndef NDEBUG -#include "llvm/ADT/SmallSet.h" -#endif -#include "llvm/CodeGen/ValueTypes.h" -#include "llvm/CodeGen/ISDOpcodes.h" -#include "llvm/Support/CallSite.h" -#include <vector> - -namespace llvm { - -class AllocaInst; -class BasicBlock; -class CallInst; -class Function; -class GlobalVariable; -class Instruction; -class MachineInstr; -class MachineBasicBlock; -class MachineFunction; -class MachineModuleInfo; -class MachineRegisterInfo; -class TargetLowering; -class Value; - -//===--------------------------------------------------------------------===// -/// FunctionLoweringInfo - This contains information that is global to a -/// function that is used when lowering a region of the function. -/// -class FunctionLoweringInfo { -public: - const TargetLowering &TLI; - const Function *Fn; - MachineFunction *MF; - MachineRegisterInfo *RegInfo; - - /// CanLowerReturn - true iff the function's return value can be lowered to - /// registers. - bool CanLowerReturn; - - /// DemoteRegister - if CanLowerReturn is false, DemoteRegister is a vreg - /// allocated to hold a pointer to the hidden sret parameter. - unsigned DemoteRegister; - - /// MBBMap - A mapping from LLVM basic blocks to their machine code entry. - DenseMap<const BasicBlock*, MachineBasicBlock *> MBBMap; - - /// ValueMap - Since we emit code for the function a basic block at a time, - /// we must remember which virtual registers hold the values for - /// cross-basic-block values. - DenseMap<const Value*, unsigned> ValueMap; - - /// StaticAllocaMap - Keep track of frame indices for fixed sized allocas in - /// the entry block. This allows the allocas to be efficiently referenced - /// anywhere in the function. - DenseMap<const AllocaInst*, int> StaticAllocaMap; - - /// ArgDbgValues - A list of DBG_VALUE instructions created during isel for - /// function arguments that are inserted after scheduling is completed. - SmallVector<MachineInstr*, 8> ArgDbgValues; - -#ifndef NDEBUG - SmallSet<const Instruction *, 8> CatchInfoLost; - SmallSet<const Instruction *, 8> CatchInfoFound; -#endif - - struct LiveOutInfo { - unsigned NumSignBits; - APInt KnownOne, KnownZero; - LiveOutInfo() : NumSignBits(0), KnownOne(1, 0), KnownZero(1, 0) {} - }; - - /// LiveOutRegInfo - Information about live out vregs, indexed by their - /// register number offset by 'FirstVirtualRegister'. - std::vector<LiveOutInfo> LiveOutRegInfo; - - /// PHINodesToUpdate - A list of phi instructions whose operand list will - /// be updated after processing the current basic block. - /// TODO: This isn't per-function state, it's per-basic-block state. But - /// there's no other convenient place for it to live right now. - std::vector<std::pair<MachineInstr*, unsigned> > PHINodesToUpdate; - - explicit FunctionLoweringInfo(const TargetLowering &TLI); - - /// set - Initialize this FunctionLoweringInfo with the given Function - /// and its associated MachineFunction. - /// - void set(const Function &Fn, MachineFunction &MF, bool EnableFastISel); - - /// clear - Clear out all the function-specific state. This returns this - /// FunctionLoweringInfo to an empty state, ready to be used for a - /// different function. - void clear(); - - unsigned MakeReg(EVT VT); - - /// isExportedInst - Return true if the specified value is an instruction - /// exported from its block. - bool isExportedInst(const Value *V) { - return ValueMap.count(V); - } - - unsigned CreateRegForValue(const Value *V); - - unsigned InitializeRegForValue(const Value *V) { - unsigned &R = ValueMap[V]; - assert(R == 0 && "Already initialized this value register!"); - return R = CreateRegForValue(V); - } -}; - -/// AddCatchInfo - Extract the personality and type infos from an eh.selector -/// call, and add them to the specified machine basic block. -void AddCatchInfo(const CallInst &I, - MachineModuleInfo *MMI, MachineBasicBlock *MBB); - -/// CopyCatchInfo - Copy catch information from DestBB to SrcBB. -void CopyCatchInfo(const BasicBlock *SrcBB, const BasicBlock *DestBB, - MachineModuleInfo *MMI, FunctionLoweringInfo &FLI); - -} // end namespace llvm - -#endif |