1 //===-- LoongArchSubtarget.cpp - LoongArch Subtarget Information -*- C++ -*--=// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file implements the LoongArch specific subclass of TargetSubtargetInfo. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "LoongArchSubtarget.h" 14 #include "LoongArchFrameLowering.h" 15 16 using namespace llvm; 17 18 #define DEBUG_TYPE "loongarch-subtarget" 19 20 #define GET_SUBTARGETINFO_TARGET_DESC 21 #define GET_SUBTARGETINFO_CTOR 22 #include "LoongArchGenSubtargetInfo.inc" 23 24 void LoongArchSubtarget::anchor() {} 25 26 LoongArchSubtarget &LoongArchSubtarget::initializeSubtargetDependencies( 27 const Triple &TT, StringRef CPU, StringRef TuneCPU, StringRef FS, 28 StringRef ABIName) { 29 bool Is64Bit = TT.isArch64Bit(); 30 if (CPU.empty()) 31 CPU = Is64Bit ? "generic-la64" : "generic-la32"; 32 33 if (TuneCPU.empty()) 34 TuneCPU = CPU; 35 36 ParseSubtargetFeatures(CPU, TuneCPU, FS); 37 if (Is64Bit) { 38 GRLenVT = MVT::i64; 39 GRLen = 64; 40 } 41 42 // TODO: ILP32{S,F} LP64{S,F} 43 TargetABI = Is64Bit ? LoongArchABI::ABI_LP64D : LoongArchABI::ABI_ILP32D; 44 return *this; 45 } 46 47 LoongArchSubtarget::LoongArchSubtarget(const Triple &TT, StringRef CPU, 48 StringRef TuneCPU, StringRef FS, 49 StringRef ABIName, 50 const TargetMachine &TM) 51 : LoongArchGenSubtargetInfo(TT, CPU, TuneCPU, FS), 52 FrameLowering( 53 initializeSubtargetDependencies(TT, CPU, TuneCPU, FS, ABIName)), 54 InstrInfo(*this), RegInfo(getHwMode()), TLInfo(TM, *this) {} 55