#include "llvm/BasicBlock.h"
#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/SmallSet.h"
#include "llvm/CodeGen/SelectionDAGNodes.h"
namespace llvm {
+class AllocaInst;
class ConstantFP;
+class Instruction;
class MachineBasicBlock;
class MachineConstantPool;
class MachineFunction;
+class MachineFrameInfo;
+class MachineModuleInfo;
class MachineRegisterInfo;
class TargetData;
class TargetInstrInfo;
DenseMap<const Value *, unsigned> LocalValueMap;
DenseMap<const Value *, unsigned> &ValueMap;
DenseMap<const BasicBlock *, MachineBasicBlock *> &MBBMap;
+ DenseMap<const AllocaInst *, int> &StaticAllocaMap;
+#ifndef NDEBUG
+ SmallSet<Instruction*, 8> &CatchInfoLost;
+#endif
MachineFunction &MF;
+ MachineModuleInfo *MMI;
MachineRegisterInfo &MRI;
+ MachineFrameInfo &MFI;
+ MachineConstantPool &MCP;
const TargetMachine &TM;
const TargetData &TD;
const TargetInstrInfo &TII;
const TargetLowering &TLI;
public:
+ /// startNewBlock - Set the current block, to which generated
+ /// machine instructions will be appended, and clear the local
+ /// CSE map.
+ ///
+ void startNewBlock(MachineBasicBlock *mbb) {
+ setCurrentBlock(mbb);
+ LocalValueMap.clear();
+ }
+
/// setCurrentBlock - Set the current block, to which generated
/// machine instructions will be appended.
///
/// be assigned the value for the given LLVM value.
unsigned getRegForValue(Value *V);
+ /// lookUpRegForValue - Look up the value to see if its value is already
+ /// cached in a register. It may be defined by instructions across blocks or
+ /// defined locally.
+ unsigned lookUpRegForValue(Value *V);
+
+ /// getRegForGEPIndex - This is a wrapper around getRegForValue that also
+ /// takes care of truncating or sign-extending the given getelementptr
+ /// index value.
+ unsigned getRegForGEPIndex(Value *V);
+
virtual ~FastISel();
protected:
FastISel(MachineFunction &mf,
+ MachineModuleInfo *mmi,
DenseMap<const Value *, unsigned> &vm,
- DenseMap<const BasicBlock *, MachineBasicBlock *> &bm);
+ DenseMap<const BasicBlock *, MachineBasicBlock *> &bm,
+ DenseMap<const AllocaInst *, int> &am
+#ifndef NDEBUG
+ , SmallSet<Instruction*, 8> &cil
+#endif
+ );
/// FastEmit_r - This method is called by target-independent code
/// to request that an instruction with the given type and opcode
/// from a specified index of a superregister.
unsigned FastEmitInst_extractsubreg(unsigned Op0, uint32_t Idx);
+ /// FastEmitBranch - Emit an unconditional branch to the given block,
+ /// unless it is the immediate (fall-through) successor, and update
+ /// the CFG.
+ void FastEmitBranch(MachineBasicBlock *MBB);
+
void UpdateValueMap(Value* I, unsigned Reg);
unsigned createResultReg(const TargetRegisterClass *RC);
/// TargetMaterializeConstant - Emit a constant in a register using
/// target-specific logic, such as constant pool loads.
- virtual unsigned TargetMaterializeConstant(Constant* C,
- MachineConstantPool* MCP) {
+ virtual unsigned TargetMaterializeConstant(Constant* C) {
+ return 0;
+ }
+
+ /// TargetMaterializeAlloca - Emit an alloca address in a register using
+ /// target-specific logic.
+ virtual unsigned TargetMaterializeAlloca(AllocaInst* C) {
return 0;
}
bool SelectGetElementPtr(User *I);
+ bool SelectCall(User *I);
+
bool SelectBitCast(User *I);
bool SelectCast(User *I, ISD::NodeType Opcode);