#ifndef SELECTIONDAGBUILDER_H
#define SELECTIONDAGBUILDER_H
-#include "llvm/Constants.h"
-#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/DenseMap.h"
+#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/SelectionDAGNodes.h"
#include "llvm/CodeGen/ValueTypes.h"
+#include "llvm/IR/Constants.h"
#include "llvm/Support/CallSite.h"
#include "llvm/Support/ErrorHandling.h"
#include <vector>
class SIToFPInst;
class StoreInst;
class SwitchInst;
-class TargetData;
+class DataLayout;
+class TargetLibraryInfo;
class TargetLowering;
class TruncInst;
class UIToFPInst;
class UnreachableInst;
-class UnwindInst;
class VAArgInst;
class ZExtInst;
/// Case - A struct to record the Value for a switch case, and the
/// case's target basic block.
struct Case {
- Constant* Low;
- Constant* High;
+ const Constant *Low;
+ const Constant *High;
MachineBasicBlock* BB;
+ uint32_t ExtraWeight;
+
+ Case() : Low(0), High(0), BB(0), ExtraWeight(0) { }
+ Case(const Constant *low, const Constant *high, MachineBasicBlock *bb,
+ uint32_t extraweight) : Low(low), High(high), BB(bb),
+ ExtraWeight(extraweight) { }
- Case() : Low(0), High(0), BB(0) { }
- Case(Constant* low, Constant* high, MachineBasicBlock* bb) :
- Low(low), High(high), BB(bb) { }
APInt size() const {
const APInt &rHigh = cast<ConstantInt>(High)->getValue();
const APInt &rLow = cast<ConstantInt>(Low)->getValue();
uint64_t Mask;
MachineBasicBlock* BB;
unsigned Bits;
+ uint32_t ExtraWeight;
- CaseBits(uint64_t mask, MachineBasicBlock* bb, unsigned bits):
- Mask(mask), BB(bb), Bits(bits) { }
+ CaseBits(uint64_t mask, MachineBasicBlock* bb, unsigned bits,
+ uint32_t Weight):
+ Mask(mask), BB(bb), Bits(bits), ExtraWeight(Weight) { }
};
typedef std::vector<Case> CaseVector;
typedef std::vector<CaseRec> CaseRecVector;
- /// The comparison function for sorting the switch case values in the vector.
- /// WARNING: Case ranges should be disjoint!
- struct CaseCmp {
- bool operator()(const Case &C1, const Case &C2) {
- assert(isa<ConstantInt>(C1.Low) && isa<ConstantInt>(C2.High));
- const ConstantInt* CI1 = cast<const ConstantInt>(C1.Low);
- const ConstantInt* CI2 = cast<const ConstantInt>(C2.High);
- return CI1->getValue().slt(CI2->getValue());
- }
- };
-
struct CaseBitsCmp {
bool operator()(const CaseBits &C1, const CaseBits &C2) {
return C1.Bits > C2.Bits;
CaseBlock(ISD::CondCode cc, const Value *cmplhs, const Value *cmprhs,
const Value *cmpmiddle,
MachineBasicBlock *truebb, MachineBasicBlock *falsebb,
- MachineBasicBlock *me)
+ MachineBasicBlock *me,
+ uint32_t trueweight = 0, uint32_t falseweight = 0)
: CC(cc), CmpLHS(cmplhs), CmpMHS(cmpmiddle), CmpRHS(cmprhs),
- TrueBB(truebb), FalseBB(falsebb), ThisBB(me) {}
+ TrueBB(truebb), FalseBB(falsebb), ThisBB(me),
+ TrueWeight(trueweight), FalseWeight(falseweight) { }
+
// CC - the condition code to use for the case block's setcc node
ISD::CondCode CC;
+
// CmpLHS/CmpRHS/CmpMHS - The LHS/MHS/RHS of the comparison to emit.
// Emit by default LHS op RHS. MHS is used for range comparisons:
// If MHS is not null: (LHS <= MHS) and (MHS <= RHS).
const Value *CmpLHS, *CmpMHS, *CmpRHS;
+
// TrueBB/FalseBB - the block to branch to if the setcc is true/false.
MachineBasicBlock *TrueBB, *FalseBB;
+
// ThisBB - the block into which to emit the code for the setcc and branches
MachineBasicBlock *ThisBB;
+
+ // TrueWeight/FalseWeight - branch weights.
+ uint32_t TrueWeight, FalseWeight;
};
+
struct JumpTable {
JumpTable(unsigned R, unsigned J, MachineBasicBlock *M,
MachineBasicBlock *D): Reg(R), JTI(J), MBB(M), Default(D) {}
typedef std::pair<JumpTableHeader, JumpTable> JumpTableBlock;
struct BitTestCase {
- BitTestCase(uint64_t M, MachineBasicBlock* T, MachineBasicBlock* Tr):
- Mask(M), ThisBB(T), TargetBB(Tr) { }
+ BitTestCase(uint64_t M, MachineBasicBlock* T, MachineBasicBlock* Tr,
+ uint32_t Weight):
+ Mask(M), ThisBB(T), TargetBB(Tr), ExtraWeight(Weight) { }
uint64_t Mask;
MachineBasicBlock *ThisBB;
MachineBasicBlock *TargetBB;
+ uint32_t ExtraWeight;
};
typedef SmallVector<BitTestCase, 3> BitTestInfo;
struct BitTestBlock {
BitTestBlock(APInt F, APInt R, const Value* SV,
- unsigned Rg, EVT RgVT, bool E,
+ unsigned Rg, MVT RgVT, bool E,
MachineBasicBlock* P, MachineBasicBlock* D,
const BitTestInfo& C):
First(F), Range(R), SValue(SV), Reg(Rg), RegVT(RgVT), Emitted(E),
APInt Range;
const Value *SValue;
unsigned Reg;
- EVT RegVT;
+ MVT RegVT;
bool Emitted;
MachineBasicBlock *Parent;
MachineBasicBlock *Default;
const TargetMachine &TM;
const TargetLowering &TLI;
SelectionDAG &DAG;
- const TargetData *TD;
+ const DataLayout *TD;
AliasAnalysis *AA;
+ const TargetLibraryInfo *LibInfo;
/// SwitchCases - Vector of CaseBlock structures used to communicate
/// SwitchInst code generation information.
/// GFI - Garbage collection metadata for the function.
GCFunctionInfo *GFI;
+ /// LPadToCallSiteMap - Map a landing pad to the call site indexes.
+ DenseMap<MachineBasicBlock*, SmallVector<unsigned, 4> > LPadToCallSiteMap;
+
/// HasTailCall - This is set to true if a call in the current
/// block has been translated as a tail call. In this case,
/// no subsequent DAG nodes should be created.
CodeGenOpt::Level ol)
: SDNodeOrder(0), TM(dag.getTarget()), TLI(dag.getTargetLoweringInfo()),
DAG(dag), FuncInfo(funcinfo), OptLevel(ol),
- HasTailCall(false), Context(dag.getContext()) {
+ HasTailCall(false) {
}
- void init(GCFunctionInfo *gfi, AliasAnalysis &aa);
+ void init(GCFunctionInfo *gfi, AliasAnalysis &aa,
+ const TargetLibraryInfo *li);
/// clear - Clear out the current SelectionDAG and the associated
/// state and prepare this SelectionDAGBuilder object to be used
void clear();
/// clearDanglingDebugInfo - Clear the dangling debug information
- /// map. This function is seperated from the clear so that debug
+ /// map. This function is separated from the clear so that debug
/// information that is dangling in a basic block can be properly
/// resolved in a different basic block. This allows the
/// SelectionDAG to resolve dangling debug information attached
const Value* SV,
MachineBasicBlock* Default,
MachineBasicBlock *SwitchBB);
+
+ uint32_t getEdgeWeight(const MachineBasicBlock *Src,
+ const MachineBasicBlock *Dst) const;
+ void addSuccessorWithWeight(MachineBasicBlock *Src, MachineBasicBlock *Dst,
+ uint32_t Weight = 0);
public:
void visitSwitchCase(CaseBlock &CB,
MachineBasicBlock *SwitchBB);
void visitBitTestHeader(BitTestBlock &B, MachineBasicBlock *SwitchBB);
void visitBitTestCase(BitTestBlock &BB,
MachineBasicBlock* NextMBB,
+ uint32_t BranchWeightToNext,
unsigned Reg,
BitTestCase &B,
MachineBasicBlock *SwitchBB);
private:
// These all get lowered before this pass.
void visitInvoke(const InvokeInst &I);
- void visitUnwind(const UnwindInst &I);
+ void visitResume(const ResumeInst &I);
void visitBinary(const User &I, unsigned OpCode);
void visitShift(const User &I, unsigned Opcode);
void visitSRem(const User &I) { visitBinary(I, ISD::SREM); }
void visitFRem(const User &I) { visitBinary(I, ISD::FREM); }
void visitUDiv(const User &I) { visitBinary(I, ISD::UDIV); }
- void visitSDiv(const User &I) { visitBinary(I, ISD::SDIV); }
+ void visitSDiv(const User &I);
void visitFDiv(const User &I) { visitBinary(I, ISD::FDIV); }
void visitAnd (const User &I) { visitBinary(I, ISD::AND); }
void visitOr (const User &I) { visitBinary(I, ISD::OR); }
void visitExtractValue(const ExtractValueInst &I);
void visitInsertValue(const InsertValueInst &I);
+ void visitLandingPad(const LandingPadInst &I);
void visitGetElementPtr(const User &I);
void visitSelect(const User &I);
void visitAlloca(const AllocaInst &I);
void visitLoad(const LoadInst &I);
void visitStore(const StoreInst &I);
+ void visitAtomicCmpXchg(const AtomicCmpXchgInst &I);
+ void visitAtomicRMW(const AtomicRMWInst &I);
+ void visitFence(const FenceInst &I);
void visitPHI(const PHINode &I);
void visitCall(const CallInst &I);
bool visitMemCmpCall(const CallInst &I);
-
+ bool visitUnaryFloatCall(const CallInst &I, unsigned Opcode);
+ void visitAtomicLoad(const LoadInst &I);
+ void visitAtomicStore(const StoreInst &I);
+
void visitInlineAsm(ImmutableCallSite CS);
const char *visitIntrinsicCall(const CallInst &I, unsigned Intrinsic);
void visitTargetIntrinsic(const CallInst &I, unsigned Intrinsic);
- void visitPow(const CallInst &I);
- void visitExp2(const CallInst &I);
- void visitExp(const CallInst &I);
- void visitLog(const CallInst &I);
- void visitLog2(const CallInst &I);
- void visitLog10(const CallInst &I);
-
void visitVAStart(const CallInst &I);
void visitVAArg(const VAArgInst &I);
void visitVAEnd(const CallInst &I);
void visitUserOp2(const Instruction &I) {
llvm_unreachable("UserOp2 should not exist at instruction selection time!");
}
-
- const char *implVisitBinaryAtomic(const CallInst& I, ISD::NodeType Op);
- const char *implVisitAluOverflow(const CallInst &I, ISD::NodeType Op);
void HandlePHINodesInSuccessorBlocks(const BasicBlock *LLVMBB);
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