1 //===- ARMLegalizerInfo.cpp --------------------------------------*- C++ -*-==// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 /// \file 10 /// This file implements the targeting of the Machinelegalizer class for ARM. 11 /// \todo This should be generated by TableGen. 12 //===----------------------------------------------------------------------===// 13 14 #include "ARMLegalizerInfo.h" 15 #include "llvm/CodeGen/ValueTypes.h" 16 #include "llvm/IR/DerivedTypes.h" 17 #include "llvm/IR/Type.h" 18 #include "llvm/Target/TargetOpcodes.h" 19 20 using namespace llvm; 21 22 #ifndef LLVM_BUILD_GLOBAL_ISEL 23 #error "You shouldn't build this" 24 #endif 25 26 ARMLegalizerInfo::ARMLegalizerInfo() { 27 using namespace TargetOpcode; 28 29 const LLT p0 = LLT::pointer(0, 32); 30 31 const LLT s1 = LLT::scalar(1); 32 const LLT s8 = LLT::scalar(8); 33 const LLT s16 = LLT::scalar(16); 34 const LLT s32 = LLT::scalar(32); 35 36 setAction({G_FRAME_INDEX, p0}, Legal); 37 38 for (auto Ty : {s1, s8, s16, s32, p0}) 39 setAction({G_LOAD, Ty}, Legal); 40 setAction({G_LOAD, 1, p0}, Legal); 41 42 for (auto Ty : {s1, s8, s16, s32}) 43 setAction({G_ADD, Ty}, Legal); 44 45 for (unsigned Op : {G_SEXT, G_ZEXT}) { 46 setAction({Op, s32}, Legal); 47 for (auto Ty : {s1, s8, s16}) 48 setAction({Op, 1, Ty}, Legal); 49 } 50 51 // FIXME: This is a bit sloppy, but for now we'll just rely on the instruction 52 // selector to complain if it doesn't support floating point. 53 setAction({G_FADD, s32}, Legal); 54 55 computeTables(); 56 } 57