1 //=-- Hexagon.h - Top-level interface for Hexagon representation --*- 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 // 10 // This file contains the entry points for global functions defined in the LLVM 11 // Hexagon back-end. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_LIB_TARGET_HEXAGON_HEXAGON_H 16 #define LLVM_LIB_TARGET_HEXAGON_HEXAGON_H 17 18 #define Hexagon_POINTER_SIZE 4 19 20 #define Hexagon_PointerSize (Hexagon_POINTER_SIZE) 21 #define Hexagon_PointerSize_Bits (Hexagon_POINTER_SIZE * 8) 22 #define Hexagon_WordSize Hexagon_PointerSize 23 #define Hexagon_WordSize_Bits Hexagon_PointerSize_Bits 24 25 // allocframe saves LR and FP on stack before allocating 26 // a new stack frame. This takes 8 bytes. 27 #define HEXAGON_LRFP_SIZE 8 28 29 // Normal instruction size (in bytes). 30 #define HEXAGON_INSTR_SIZE 4 31 32 // Maximum number of words and instructions in a packet. 33 #define HEXAGON_PACKET_SIZE 4 34 #define HEXAGON_MAX_PACKET_SIZE (HEXAGON_PACKET_SIZE * HEXAGON_INSTR_SIZE) 35 // Minimum number of instructions in an end-loop packet. 36 #define HEXAGON_PACKET_INNER_SIZE 2 37 #define HEXAGON_PACKET_OUTER_SIZE 3 38 // Maximum number of instructions in a packet before shuffling, 39 // including a compound one or a duplex or an extender. 40 #define HEXAGON_PRESHUFFLE_PACKET_SIZE (HEXAGON_PACKET_SIZE + 3) 41 42 // Name of the global offset table as defined by the Hexagon ABI 43 #define HEXAGON_GOT_SYM_NAME "_GLOBAL_OFFSET_TABLE_" 44 45 #include "MCTargetDesc/HexagonMCTargetDesc.h" 46 #include "llvm/Target/TargetLowering.h" 47 #include "llvm/Target/TargetMachine.h" 48 49 namespace llvm { 50 class HexagonTargetMachine; 51 52 /// \brief Creates a Hexagon-specific Target Transformation Info pass. 53 ImmutablePass *createHexagonTargetTransformInfoPass(const HexagonTargetMachine *TM); 54 } // end namespace llvm; 55 56 #endif 57
