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//===---- MipsABIInfo.cpp - Information about MIPS ABI's ------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "MipsABIInfo.h"
#include "MipsRegisterInfo.h"
using namespace llvm;
namespace {
static const MCPhysReg O32IntRegs[4] = {Mips::A0, Mips::A1, Mips::A2, Mips::A3};
static const MCPhysReg Mips64IntRegs[8] = {
Mips::A0_64, Mips::A1_64, Mips::A2_64, Mips::A3_64,
Mips::T0_64, Mips::T1_64, Mips::T2_64, Mips::T3_64};
}
const ArrayRef<MCPhysReg> MipsABIInfo::GetByValArgRegs() const {
if (IsO32())
return makeArrayRef(O32IntRegs);
if (IsN32() || IsN64())
return makeArrayRef(Mips64IntRegs);
llvm_unreachable("Unhandled ABI");
}
const ArrayRef<MCPhysReg> MipsABIInfo::GetVarArgRegs() const {
if (IsO32())
return makeArrayRef(O32IntRegs);
if (IsN32() || IsN64())
return makeArrayRef(Mips64IntRegs);
llvm_unreachable("Unhandled ABI");
}
unsigned MipsABIInfo::GetCalleeAllocdArgSizeInBytes(CallingConv::ID CC) const {
if (IsO32())
return CC != CallingConv::Fast ? 16 : 0;
if (IsN32() || IsN64() || IsEABI())
return 0;
llvm_unreachable("Unhandled ABI");
}
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