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857a305024
More preparation for dropping source types from MachineInstrs: regsters coming out of already-selected code (i.e. non-generic instructions) don't have a type, but that information is needed so we must add it manually. This is done via a new G_TYPE instruction. llvm-svn: 280292
52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
//===-- llvm/lib/Target/AArch64/AArch64CallLowering.h - Call lowering -----===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// This file describes how to lower LLVM calls to machine code calls.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_AARCH64_AARCH64CALLLOWERING
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#define LLVM_LIB_TARGET_AARCH64_AARCH64CALLLOWERING
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#include "llvm/CodeGen/GlobalISel/CallLowering.h"
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#include "llvm/CodeGen/CallingConvLower.h"
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#include "llvm/CodeGen/ValueTypes.h"
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namespace llvm {
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class AArch64TargetLowering;
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class AArch64CallLowering: public CallLowering {
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public:
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AArch64CallLowering(const AArch64TargetLowering &TLI);
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bool lowerReturn(MachineIRBuilder &MIRBuiler, const Value *Val,
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unsigned VReg) const override;
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bool lowerFormalArguments(MachineIRBuilder &MIRBuilder,
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const Function::ArgumentListType &Args,
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ArrayRef<unsigned> VRegs) const override;
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bool lowerCall(MachineIRBuilder &MIRBuilder, const MachineOperand &Callee,
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ArrayRef<Type *> ResTys, ArrayRef<unsigned> ResRegs,
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ArrayRef<Type *> ArgTys,
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ArrayRef<unsigned> ArgRegs) const override;
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private:
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typedef std::function<void(MachineIRBuilder &, Type *, unsigned, unsigned)>
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AssignFnTy;
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bool handleAssignments(MachineIRBuilder &MIRBuilder, CCAssignFn *AssignFn,
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ArrayRef<Type *> ArgsTypes, ArrayRef<unsigned> ArgRegs,
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AssignFnTy AssignValToReg) const;
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};
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} // End of namespace llvm;
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#endif
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