//
//===----------------------------------------------------------------------===//
-#ifndef MIPS_MACHINE_FUNCTION_INFO_H
-#define MIPS_MACHINE_FUNCTION_INFO_H
+#ifndef LLVM_LIB_TARGET_MIPS_MIPSMACHINEFUNCTION_H
+#define LLVM_LIB_TARGET_MIPS_MIPSMACHINEFUNCTION_H
-#include "MipsSubtarget.h"
-#include "llvm/CodeGen/MachineFunction.h"
+#include "Mips16HardFloatInfo.h"
+#include "llvm/ADT/StringMap.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/MachineMemOperand.h"
+#include "llvm/CodeGen/PseudoSourceValue.h"
+#include "llvm/IR/GlobalValue.h"
+#include "llvm/IR/ValueMap.h"
#include "llvm/Target/TargetFrameLowering.h"
#include "llvm/Target/TargetMachine.h"
+#include <map>
+#include <string>
#include <utility>
namespace llvm {
+/// \brief A class derived from PseudoSourceValue that represents a GOT entry
+/// resolved by lazy-binding.
+class MipsCallEntry : public PseudoSourceValue {
+public:
+ explicit MipsCallEntry(StringRef N);
+ explicit MipsCallEntry(const GlobalValue *V);
+ bool isConstant(const MachineFrameInfo *) const override;
+ bool isAliased(const MachineFrameInfo *) const override;
+ bool mayAlias(const MachineFrameInfo *) const override;
+
+private:
+ void printCustom(raw_ostream &O) const override;
+#ifndef NDEBUG
+ std::string Name;
+ const GlobalValue *Val;
+#endif
+};
+
/// MipsFunctionInfo - This class is derived from MachineFunction private
/// Mips target-specific information for each MachineFunction.
class MipsFunctionInfo : public MachineFunctionInfo {
+public:
+ MipsFunctionInfo(MachineFunction &MF)
+ : MF(MF), SRetReturnReg(0), GlobalBaseReg(0), Mips16SPAliasReg(0),
+ VarArgsFrameIndex(0), CallsEhReturn(false), SaveS2(false),
+ MoveF64ViaSpillFI(-1) {}
+
+ ~MipsFunctionInfo();
+
+ unsigned getSRetReturnReg() const { return SRetReturnReg; }
+ void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
+
+ bool globalBaseRegSet() const;
+ unsigned getGlobalBaseReg();
+
+ bool mips16SPAliasRegSet() const;
+ unsigned getMips16SPAliasReg();
+
+ int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
+ void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
+
+ bool hasByvalArg() const { return HasByvalArg; }
+ void setFormalArgInfo(unsigned Size, bool HasByval) {
+ IncomingArgSize = Size;
+ HasByvalArg = HasByval;
+ }
+
+ unsigned getIncomingArgSize() const { return IncomingArgSize; }
+
+ bool callsEhReturn() const { return CallsEhReturn; }
+ void setCallsEhReturn() { CallsEhReturn = true; }
+
+ void createEhDataRegsFI();
+ int getEhDataRegFI(unsigned Reg) const { return EhDataRegFI[Reg]; }
+ bool isEhDataRegFI(int FI) const;
+
+ /// \brief Create a MachinePointerInfo that has a MipsCallEntr object
+ /// representing a GOT entry for an external function.
+ MachinePointerInfo callPtrInfo(StringRef Name);
+
+ /// \brief Create a MachinePointerInfo that has a MipsCallEntr object
+ /// representing a GOT entry for a global function.
+ MachinePointerInfo callPtrInfo(const GlobalValue *Val);
+
+ void setSaveS2() { SaveS2 = true; }
+ bool hasSaveS2() const { return SaveS2; }
+
+ int getMoveF64ViaSpillFI(const TargetRegisterClass *RC);
+
+ std::map<const char *, const llvm::Mips16HardFloatInfo::FuncSignature *>
+ StubsNeeded;
+
+private:
virtual void anchor();
MachineFunction& MF;
/// relocation models.
unsigned GlobalBaseReg;
+ /// Mips16SPAliasReg - keeps track of the virtual register initialized for
+ /// use as an alias for SP for use in load/store of halfword/byte from/to
+ /// the stack
+ unsigned Mips16SPAliasReg;
+
/// VarArgsFrameIndex - FrameIndex for start of varargs area.
int VarArgsFrameIndex;
- // Range of frame object indices.
- // InArgFIRange: Range of indices of all frame objects created during call to
- // LowerFormalArguments.
- // OutArgFIRange: Range of indices of all frame objects created during call to
- // LowerCall except for the frame object for restoring $gp.
- std::pair<int, int> InArgFIRange, OutArgFIRange;
- unsigned MaxCallFrameSize;
-
- bool EmitNOAT;
-
-public:
- MipsFunctionInfo(MachineFunction& MF)
- : MF(MF), SRetReturnReg(0), GlobalBaseReg(0),
- VarArgsFrameIndex(0), InArgFIRange(std::make_pair(-1, 0)),
- OutArgFIRange(std::make_pair(-1, 0)), MaxCallFrameSize(0), EmitNOAT(false)
- {}
-
- bool isInArgFI(int FI) const {
- return FI <= InArgFIRange.first && FI >= InArgFIRange.second;
- }
- void setLastInArgFI(int FI) { InArgFIRange.second = FI; }
+ /// True if function has a byval argument.
+ bool HasByvalArg;
- bool isOutArgFI(int FI) const {
- return FI <= OutArgFIRange.first && FI >= OutArgFIRange.second;
- }
- void extendOutArgFIRange(int FirstFI, int LastFI) {
- if (!OutArgFIRange.second)
- // this must be the first time this function was called.
- OutArgFIRange.first = FirstFI;
- OutArgFIRange.second = LastFI;
- }
+ /// Size of incoming argument area.
+ unsigned IncomingArgSize;
- unsigned getSRetReturnReg() const { return SRetReturnReg; }
- void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
+ /// CallsEhReturn - Whether the function calls llvm.eh.return.
+ bool CallsEhReturn;
- bool globalBaseRegSet() const;
- unsigned getGlobalBaseReg();
+ /// Frame objects for spilling eh data registers.
+ int EhDataRegFI[4];
- int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
- void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
+ // saveS2
+ bool SaveS2;
- unsigned getMaxCallFrameSize() const { return MaxCallFrameSize; }
- void setMaxCallFrameSize(unsigned S) { MaxCallFrameSize = S; }
+ /// FrameIndex for expanding BuildPairF64 nodes to spill and reload when the
+ /// O32 FPXX ABI is enabled. -1 is used to denote invalid index.
+ int MoveF64ViaSpillFI;
- bool getEmitNOAT() const { return EmitNOAT; }
- void setEmitNOAT() { EmitNOAT = true; }
+ /// MipsCallEntry maps.
+ StringMap<const MipsCallEntry *> ExternalCallEntries;
+ ValueMap<const GlobalValue *, const MipsCallEntry *> GlobalCallEntries;
};
} // end of namespace llvm
-#endif // MIPS_MACHINE_FUNCTION_INFO_H
+#endif
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