diff options
Diffstat (limited to 'lib/Target/AArch64/AArch64CallLowering.h')
| -rw-r--r-- | lib/Target/AArch64/AArch64CallLowering.h | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/lib/Target/AArch64/AArch64CallLowering.h b/lib/Target/AArch64/AArch64CallLowering.h index 4f428f254537..b0c601c7062c 100644 --- a/lib/Target/AArch64/AArch64CallLowering.h +++ b/lib/Target/AArch64/AArch64CallLowering.h @@ -40,16 +40,15 @@ public: bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F, ArrayRef<ArrayRef<Register>> VRegs) const override; - bool lowerCall(MachineIRBuilder &MIRBuilder, CallingConv::ID CallConv, - const MachineOperand &Callee, const ArgInfo &OrigRet, - ArrayRef<ArgInfo> OrigArgs, - Register SwiftErrorVReg) const override; + bool lowerCall(MachineIRBuilder &MIRBuilder, + CallLoweringInfo &Info) const override; - bool lowerCall(MachineIRBuilder &MIRBuilder, CallingConv::ID CallConv, - const MachineOperand &Callee, const ArgInfo &OrigRet, - ArrayRef<ArgInfo> OrigArgs) const override { - return lowerCall(MIRBuilder, CallConv, Callee, OrigRet, OrigArgs, 0); - } + /// Returns true if the call can be lowered as a tail call. + bool + isEligibleForTailCallOptimization(MachineIRBuilder &MIRBuilder, + CallLoweringInfo &Info, + SmallVectorImpl<ArgInfo> &InArgs, + SmallVectorImpl<ArgInfo> &OutArgs) const; bool supportSwiftError() const override { return true; } @@ -64,6 +63,18 @@ private: SmallVectorImpl<ArgInfo> &SplitArgs, const DataLayout &DL, MachineRegisterInfo &MRI, CallingConv::ID CallConv) const; + + bool lowerTailCall(MachineIRBuilder &MIRBuilder, CallLoweringInfo &Info, + SmallVectorImpl<ArgInfo> &OutArgs) const; + + bool + doCallerAndCalleePassArgsTheSameWay(CallLoweringInfo &Info, + MachineFunction &MF, + SmallVectorImpl<ArgInfo> &InArgs) const; + + bool + areCalleeOutgoingArgsTailCallable(CallLoweringInfo &Info, MachineFunction &MF, + SmallVectorImpl<ArgInfo> &OutArgs) const; }; } // end namespace llvm |