64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
//=== CSKYCallingConv.h - CSKY Custom Calling Convention Routines -*-C++-*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the custom routines for the CSKY Calling Convention that
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// aren't done by tablegen.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_CSKY_CSKYCALLINGCONV_H
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#define LLVM_LIB_TARGET_CSKY_CSKYCALLINGCONV_H
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#include "CSKY.h"
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#include "CSKYSubtarget.h"
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#include "llvm/CodeGen/CallingConvLower.h"
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#include "llvm/CodeGen/TargetInstrInfo.h"
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#include "llvm/IR/CallingConv.h"
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namespace llvm {
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static bool CC_CSKY_ABIV2_SOFT_64(unsigned &ValNo, MVT &ValVT, MVT &LocVT,
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CCValAssign::LocInfo &LocInfo,
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ISD::ArgFlagsTy &ArgFlags, CCState &State) {
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static const MCPhysReg ArgGPRs[] = {CSKY::R0, CSKY::R1, CSKY::R2, CSKY::R3};
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Register Reg = State.AllocateReg(ArgGPRs);
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LocVT = MVT::i32;
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if (!Reg) {
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unsigned StackOffset = State.AllocateStack(8, Align(4));
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State.addLoc(
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CCValAssign::getMem(ValNo, ValVT, StackOffset, LocVT, LocInfo));
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return true;
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}
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if (!State.AllocateReg(ArgGPRs))
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State.AllocateStack(4, Align(4));
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State.addLoc(CCValAssign::getReg(ValNo, ValVT, Reg, LocVT, LocInfo));
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return true;
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}
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static bool Ret_CSKY_ABIV2_SOFT_64(unsigned &ValNo, MVT &ValVT, MVT &LocVT,
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CCValAssign::LocInfo &LocInfo,
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ISD::ArgFlagsTy &ArgFlags, CCState &State) {
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static const MCPhysReg ArgGPRs[] = {CSKY::R0, CSKY::R1};
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Register Reg = State.AllocateReg(ArgGPRs);
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LocVT = MVT::i32;
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if (!Reg)
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return false;
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if (!State.AllocateReg(ArgGPRs))
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return false;
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State.addLoc(CCValAssign::getReg(ValNo, ValVT, Reg, LocVT, LocInfo));
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return true;
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}
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} // namespace llvm
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#endif
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