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25d739d334
Includes support for expanding va_copy. Also adds support for using 'aligned' registers when necessary for vararg calls, and ensure the frame pointer always points to the bottom of the vararg spill region. This is necessary to ensure that the saved return address and stack pointer are always available at fixed known offsets of the frame pointer. Differential Revision: https://reviews.llvm.org/D40805 llvm-svn: 322215
45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
//=- RISCVMachineFunctionInfo.h - RISCV machine function info -----*- C++ -*-=//
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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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// This file declares RISCV-specific per-machine-function information.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_RISCV_RISCVMACHINEFUNCTIONINFO_H
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#define LLVM_LIB_TARGET_RISCV_RISCVMACHINEFUNCTIONINFO_H
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#include "llvm/CodeGen/MachineFunction.h"
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namespace llvm {
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/// RISCVMachineFunctionInfo - This class is derived from MachineFunctionInfo
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/// and contains private RISCV-specific information for each MachineFunction.
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class RISCVMachineFunctionInfo : public MachineFunctionInfo {
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/// FrameIndex for start of varargs area
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int VarArgsFrameIndex = 0;
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/// Size of the save area used for varargs
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int VarArgsSaveSize = 0;
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public:
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RISCVMachineFunctionInfo() = default;
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explicit RISCVMachineFunctionInfo(MachineFunction &MF) {}
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int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
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void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
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unsigned getVarArgsSaveSize() const { return VarArgsSaveSize; }
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void setVarArgsSaveSize(int Size) { VarArgsSaveSize = Size; }
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};
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} // end namespace llvm
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#endif // LLVM_LIB_TARGET_RISCV_RISCVMACHINEFUNCTIONINFO_H
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