#ifndef LLVM_LIB_CODEGEN_SELECTIONDAG_SELECTIONDAGBUILDER_H
#define LLVM_LIB_CODEGEN_SELECTIONDAG_SELECTIONDAGBUILDER_H
+#include "StatepointLowering.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/SelectionDAGNodes.h"
#include "llvm/IR/CallSite.h"
+#include "llvm/IR/Statepoint.h"
#include "llvm/IR/Constants.h"
#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Target/TargetLowering.h"
#include <vector>
namespace llvm {
/// get simple disambiguation between loads without worrying about alias
/// analysis.
SmallVector<SDValue, 8> PendingLoads;
+
+ /// State used while lowering a statepoint sequence (gc_statepoint,
+ /// gc_relocate, and gc_result). See StatepointLowering.hpp/cpp for details.
+ StatepointLoweringState StatepointLowering;
private:
/// PendingExports - CopyToReg nodes that copy values to virtual registers
}
};
- size_t Clusterify(CaseVector &Cases, const SwitchInst &SI);
+ void Clusterify(CaseVector &Cases, const SwitchInst &SI);
/// CaseBlock - This structure is used to communicate between
/// SelectionDAGBuilder and SDISel for the code generation of additional basic
BitTestBlock(APInt F, APInt R, const Value* SV,
unsigned Rg, MVT RgVT, bool E,
MachineBasicBlock* P, MachineBasicBlock* D,
- const BitTestInfo& C):
+ BitTestInfo C):
First(F), Range(R), SValue(SV), Reg(Rg), RegVT(RgVT), Emitted(E),
- Parent(P), Default(D), Cases(C) { }
+ Parent(P), Default(D), Cases(std::move(C)) { }
APInt First;
APInt Range;
const Value *SValue;
assert(!shouldEmitStackProtector() && "Stack Protector Descriptor is "
"already initialized!");
ParentMBB = MBB;
- SuccessMBB = AddSuccessorMBB(BB, MBB);
- FailureMBB = AddSuccessorMBB(BB, MBB, FailureMBB);
+ SuccessMBB = AddSuccessorMBB(BB, MBB, /* IsLikely */ true);
+ FailureMBB = AddSuccessorMBB(BB, MBB, /* IsLikely */ false, FailureMBB);
if (!Guard)
Guard = StackProtCheckCall.getArgOperand(0);
}
/// Add a successor machine basic block to ParentMBB. If the successor mbb
/// has not been created yet (i.e. if SuccMBB = 0), then the machine basic
- /// block will be created.
+ /// block will be created. Assign a large weight if IsLikely is true.
MachineBasicBlock *AddSuccessorMBB(const BasicBlock *BB,
MachineBasicBlock *ParentMBB,
+ bool IsLikely,
MachineBasicBlock *SuccMBB = nullptr);
};
N = NewN;
}
+ void removeValue(const Value *V) {
+ // This is to support hack in lowerCallFromStatepoint
+ // Should be removed when hack is resolved
+ NodeMap.erase(V);
+ }
+
void setUnusedArgValue(const Value *V, SDValue NewN) {
SDValue &N = UnusedArgNodeMap[V];
assert(!N.getNode() && "Already set a value for this node!");
void LowerCallTo(ImmutableCallSite CS, SDValue Callee, bool IsTailCall,
MachineBasicBlock *LandingPad = nullptr);
- std::pair<SDValue, SDValue> LowerCallOperands(const CallInst &CI,
- unsigned ArgIdx,
- unsigned NumArgs,
- SDValue Callee,
- bool useVoidTy = false);
+ std::pair<SDValue, SDValue> lowerCallOperands(
+ ImmutableCallSite CS,
+ unsigned ArgIdx,
+ unsigned NumArgs,
+ SDValue Callee,
+ bool UseVoidTy = false,
+ MachineBasicBlock *LandingPad = nullptr,
+ bool IsPatchPoint = false);
/// UpdateSplitBlock - When an MBB was split during scheduling, update the
/// references that need to refer to the last resulting block.
void UpdateSplitBlock(MachineBasicBlock *First, MachineBasicBlock *Last);
+ // This function is responsible for the whole statepoint lowering process.
+ void LowerStatepoint(ImmutableStatepoint Statepoint);
private:
+ std::pair<SDValue, SDValue> lowerInvokable(
+ TargetLowering::CallLoweringInfo &CLI,
+ MachineBasicBlock *LandingPad);
+
// Terminator instructions.
void visitRet(const ReturnInst &I);
void visitBr(const BranchInst &I);
bool handleBTSplitSwitchCase(CaseRec& CR,
CaseRecVector& WorkList,
const Value* SV,
- MachineBasicBlock* Default,
MachineBasicBlock *SwitchBB);
+ void splitSwitchCase(CaseRec &CR, CaseItr Pivot, CaseRecVector &WorkList,
+ const Value *SV, MachineBasicBlock *SwitchBB);
bool handleBitTestsSwitchCase(CaseRec& CR,
CaseRecVector& WorkList,
const Value* SV,
void visitJumpTable(JumpTable &JT);
void visitJumpTableHeader(JumpTable &JT, JumpTableHeader &JTH,
MachineBasicBlock *SwitchBB);
+ unsigned visitLandingPadClauseBB(GlobalValue *ClauseGV,
+ MachineBasicBlock *LPadMBB);
private:
// These all get lowered before this pass.
void visitAlloca(const AllocaInst &I);
void visitLoad(const LoadInst &I);
void visitStore(const StoreInst &I);
+ void visitMaskedLoad(const CallInst &I);
+ void visitMaskedStore(const CallInst &I);
void visitAtomicCmpXchg(const AtomicCmpXchgInst &I);
void visitAtomicRMW(const AtomicRMWInst &I);
void visitFence(const FenceInst &I);
bool visitStrLenCall(const CallInst &I);
bool visitStrNLenCall(const CallInst &I);
bool visitUnaryFloatCall(const CallInst &I, unsigned Opcode);
+ bool visitBinaryFloatCall(const CallInst &I, unsigned Opcode);
void visitAtomicLoad(const LoadInst &I);
void visitAtomicStore(const StoreInst &I);
void visitVAEnd(const CallInst &I);
void visitVACopy(const CallInst &I);
void visitStackmap(const CallInst &I);
- void visitPatchpoint(const CallInst &I);
+ void visitPatchpoint(ImmutableCallSite CS,
+ MachineBasicBlock *LandingPad = nullptr);
+
+ // These three are implemented in StatepointLowering.cpp
+ void visitStatepoint(const CallInst &I);
+ void visitGCRelocate(const CallInst &I);
+ void visitGCResult(const CallInst &I);
void visitUserOp1(const Instruction &I) {
llvm_unreachable("UserOp1 should not exist at instruction selection time!");
/// EmitFuncArgumentDbgValue - If V is an function argument then create
/// corresponding DBG_VALUE machine instruction for it now. At the end of
/// instruction selection, they will be inserted to the entry BB.
- bool EmitFuncArgumentDbgValue(const Value *V, MDNode *Variable,
+ bool EmitFuncArgumentDbgValue(const Value *V, MDNode *Variable, MDNode *Expr,
int64_t Offset, bool IsIndirect,
const SDValue &N);
};
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