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63c7457853
This function seems target-independent so far: all the target-specific behaviour is isolated in the CCAssignFn and the ValueHandler (which we're also extracting into the generic CallLowering). The intention is to use this in the ARM backend. Differential Revision: https://reviews.llvm.org/D27045 llvm-svn: 288658
57 lines
1.9 KiB
C++
57 lines
1.9 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/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, const Function &F,
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ArrayRef<unsigned> VRegs) const override;
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bool lowerCall(MachineIRBuilder &MIRBuilder, const MachineOperand &Callee,
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const ArgInfo &OrigRet,
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ArrayRef<ArgInfo> OrigArgs) const override;
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private:
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typedef std::function<void(MachineIRBuilder &, Type *, unsigned,
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CCValAssign &)>
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RegHandler;
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typedef std::function<void(MachineIRBuilder &, int, CCValAssign &)>
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MemHandler;
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typedef std::function<void(ArrayRef<unsigned>, ArrayRef<uint64_t>)>
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SplitArgTy;
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void splitToValueTypes(const ArgInfo &OrigArgInfo,
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SmallVectorImpl<ArgInfo> &SplitArgs,
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const DataLayout &DL, MachineRegisterInfo &MRI,
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SplitArgTy SplitArg) const;
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};
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} // End of namespace llvm;
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#endif
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