| //===-- MipsBaseInfo.h - Top level definitions for MIPS MC ------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file contains small standalone helper functions and enum definitions for |
| // the Mips target useful for the compiler back-end and the MC libraries. |
| // |
| //===----------------------------------------------------------------------===// |
| #ifndef LLVM_LIB_TARGET_MIPS_MCTARGETDESC_MIPSBASEINFO_H |
| #define LLVM_LIB_TARGET_MIPS_MCTARGETDESC_MIPSBASEINFO_H |
| |
| #include "MipsFixupKinds.h" |
| #include "MipsMCTargetDesc.h" |
| #include "llvm/MC/MCExpr.h" |
| #include "llvm/Support/DataTypes.h" |
| #include "llvm/Support/ErrorHandling.h" |
| |
| namespace llvm { |
| |
| /// MipsII - This namespace holds all of the target specific flags that |
| /// instruction info tracks. |
| /// |
| namespace MipsII { |
| /// Target Operand Flag enum. |
| enum TOF { |
| //===------------------------------------------------------------------===// |
| // Mips Specific MachineOperand flags. |
| |
| MO_NO_FLAG, |
| |
| /// MO_GOT - Represents the offset into the global offset table at which |
| /// the address the relocation entry symbol resides during execution. |
| MO_GOT, |
| |
| /// MO_GOT_CALL - Represents the offset into the global offset table at |
| /// which the address of a call site relocation entry symbol resides |
| /// during execution. This is different from the above since this flag |
| /// can only be present in call instructions. |
| MO_GOT_CALL, |
| |
| /// MO_GPREL - Represents the offset from the current gp value to be used |
| /// for the relocatable object file being produced. |
| MO_GPREL, |
| |
| /// MO_ABS_HI/LO - Represents the hi or low part of an absolute symbol |
| /// address. |
| MO_ABS_HI, |
| MO_ABS_LO, |
| |
| /// MO_TLSGD - Represents the offset into the global offset table at which |
| // the module ID and TSL block offset reside during execution (General |
| // Dynamic TLS). |
| MO_TLSGD, |
| |
| /// MO_TLSLDM - Represents the offset into the global offset table at which |
| // the module ID and TSL block offset reside during execution (Local |
| // Dynamic TLS). |
| MO_TLSLDM, |
| MO_DTPREL_HI, |
| MO_DTPREL_LO, |
| |
| /// MO_GOTTPREL - Represents the offset from the thread pointer (Initial |
| // Exec TLS). |
| MO_GOTTPREL, |
| |
| /// MO_TPREL_HI/LO - Represents the hi and low part of the offset from |
| // the thread pointer (Local Exec TLS). |
| MO_TPREL_HI, |
| MO_TPREL_LO, |
| |
| // N32/64 Flags. |
| MO_GPOFF_HI, |
| MO_GPOFF_LO, |
| MO_GOT_DISP, |
| MO_GOT_PAGE, |
| MO_GOT_OFST, |
| |
| /// MO_HIGHER/HIGHEST - Represents the highest or higher half word of a |
| /// 64-bit symbol address. |
| MO_HIGHER, |
| MO_HIGHEST, |
| |
| /// MO_GOT_HI16/LO16, MO_CALL_HI16/LO16 - Relocations used for large GOTs. |
| MO_GOT_HI16, |
| MO_GOT_LO16, |
| MO_CALL_HI16, |
| MO_CALL_LO16 |
| }; |
| |
| enum { |
| //===------------------------------------------------------------------===// |
| // Instruction encodings. These are the standard/most common forms for |
| // Mips instructions. |
| // |
| |
| // Pseudo - This represents an instruction that is a pseudo instruction |
| // or one that has not been implemented yet. It is illegal to code generate |
| // it, but tolerated for intermediate implementation stages. |
| Pseudo = 0, |
| |
| /// FrmR - This form is for instructions of the format R. |
| FrmR = 1, |
| /// FrmI - This form is for instructions of the format I. |
| FrmI = 2, |
| /// FrmJ - This form is for instructions of the format J. |
| FrmJ = 3, |
| /// FrmFR - This form is for instructions of the format FR. |
| FrmFR = 4, |
| /// FrmFI - This form is for instructions of the format FI. |
| FrmFI = 5, |
| /// FrmOther - This form is for instructions that have no specific format. |
| FrmOther = 6, |
| |
| FormMask = 15, |
| /// IsCTI - Instruction is a Control Transfer Instruction. |
| IsCTI = 1 << 4, |
| /// HasForbiddenSlot - Instruction has a forbidden slot. |
| HasForbiddenSlot = 1 << 5, |
| /// IsPCRelativeLoad - A Load instruction with implicit source register |
| /// ($pc) with explicit offset and destination register |
| IsPCRelativeLoad = 1 << 6, |
| /// HasFCCRegOperand - Instruction uses an $fcc<x> register. |
| HasFCCRegOperand = 1 << 7 |
| |
| }; |
| } |
| } |
| |
| #endif |