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() || CPU == "generic") 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 if (HasLA32 == HasLA64) 43 report_fatal_error("Please use one feature of 32bit and 64bit."); 44 45 if (Is64Bit && HasLA32) 46 report_fatal_error("Feature 32bit should be used for loongarch32 target."); 47 48 if (!Is64Bit && HasLA64) 49 report_fatal_error("Feature 64bit should be used for loongarch64 target."); 50 51 // TODO: ILP32{S,F} LP64{S,F} 52 TargetABI = Is64Bit ? LoongArchABI::ABI_LP64D : LoongArchABI::ABI_ILP32D; 53 return *this; 54 } 55 56 LoongArchSubtarget::LoongArchSubtarget(const Triple &TT, StringRef CPU, 57 StringRef TuneCPU, StringRef FS, 58 StringRef ABIName, 59 const TargetMachine &TM) 60 : LoongArchGenSubtargetInfo(TT, CPU, TuneCPU, FS), 61 FrameLowering( 62 initializeSubtargetDependencies(TT, CPU, TuneCPU, FS, ABIName)), 63 InstrInfo(*this), RegInfo(getHwMode()), TLInfo(TM, *this) {} 64