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Diffstat (limited to 'contrib/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonBaseInfo.h')
-rw-r--r-- | contrib/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonBaseInfo.h | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonBaseInfo.h b/contrib/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonBaseInfo.h new file mode 100644 index 000000000000..8519cf314e6f --- /dev/null +++ b/contrib/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonBaseInfo.h @@ -0,0 +1,184 @@ +//===-- HexagonBaseInfo.h - Top level definitions for Hexagon --*- 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 Hexagon target useful for the compiler back-end and the MC libraries. +// As such, it deliberately does not include references to LLVM core +// code gen types, passes, etc.. +// +//===----------------------------------------------------------------------===// + +#ifndef HEXAGONBASEINFO_H +#define HEXAGONBASEINFO_H + +#include "HexagonMCTargetDesc.h" +#include "llvm/Support/ErrorHandling.h" + +namespace llvm { + +/// HexagonII - This namespace holds all of the target specific flags that +/// instruction info tracks. +/// +namespace HexagonII { + // *** The code below must match HexagonInstrFormat*.td *** // + + // Insn types. + // *** Must match HexagonInstrFormat*.td *** + enum Type { + TypePSEUDO = 0, + TypeALU32 = 1, + TypeCR = 2, + TypeJR = 3, + TypeJ = 4, + TypeLD = 5, + TypeST = 6, + TypeSYSTEM = 7, + TypeXTYPE = 8, + TypeMEMOP = 9, + TypeNV = 10, + TypePREFIX = 30, // Such as extenders. + TypeENDLOOP = 31 // Such as end of a HW loop. + }; + + enum SubTarget { + HasV2SubT = 0xf, + HasV2SubTOnly = 0x1, + NoV2SubT = 0x0, + HasV3SubT = 0xe, + HasV3SubTOnly = 0x2, + NoV3SubT = 0x1, + HasV4SubT = 0xc, + NoV4SubT = 0x3, + HasV5SubT = 0x8, + NoV5SubT = 0x7 + }; + + enum AddrMode { + NoAddrMode = 0, // No addressing mode + Absolute = 1, // Absolute addressing mode + AbsoluteSet = 2, // Absolute set addressing mode + BaseImmOffset = 3, // Indirect with offset + BaseLongOffset = 4, // Indirect with long offset + BaseRegOffset = 5, // Indirect with register offset + PostInc = 6 // Post increment addressing mode + }; + + enum MemAccessSize { + NoMemAccess = 0, // Not a memory acces instruction. + ByteAccess = 1, // Byte access instruction (memb). + HalfWordAccess = 2, // Half word access instruction (memh). + WordAccess = 3, // Word access instruction (memw). + DoubleWordAccess = 4 // Double word access instruction (memd) + }; + + // MCInstrDesc TSFlags + // *** Must match HexagonInstrFormat*.td *** + enum { + // This 5-bit field describes the insn type. + TypePos = 0, + TypeMask = 0x1f, + + // Solo instructions. + SoloPos = 5, + SoloMask = 0x1, + + // Predicated instructions. + PredicatedPos = 6, + PredicatedMask = 0x1, + PredicatedFalsePos = 7, + PredicatedFalseMask = 0x1, + PredicatedNewPos = 8, + PredicatedNewMask = 0x1, + + // New-Value consumer instructions. + NewValuePos = 9, + NewValueMask = 0x1, + + // New-Value producer instructions. + hasNewValuePos = 10, + hasNewValueMask = 0x1, + + // Which operand consumes or produces a new value. + NewValueOpPos = 11, + NewValueOpMask = 0x7, + + // Which bits encode the new value. + NewValueBitsPos = 14, + NewValueBitsMask = 0x3, + + // Stores that can become new-value stores. + mayNVStorePos = 16, + mayNVStoreMask = 0x1, + + // New-value store instructions. + NVStorePos = 17, + NVStoreMask = 0x1, + + // Extendable insns. + ExtendablePos = 18, + ExtendableMask = 0x1, + + // Insns must be extended. + ExtendedPos = 19, + ExtendedMask = 0x1, + + // Which operand may be extended. + ExtendableOpPos = 20, + ExtendableOpMask = 0x7, + + // Signed or unsigned range. + ExtentSignedPos = 23, + ExtentSignedMask = 0x1, + + // Number of bits of range before extending operand. + ExtentBitsPos = 24, + ExtentBitsMask = 0x1f, + + // Valid subtargets + validSubTargetPos = 29, + validSubTargetMask = 0xf, + + // Addressing mode for load/store instructions. + AddrModePos = 33, + AddrModeMask = 0x7, + + // Access size of memory access instructions (load/store). + MemAccessSizePos = 36, + MemAccesSizeMask = 0x7 + }; + + // *** The code above must match HexagonInstrFormat*.td *** // + + // Hexagon specific MO operand flag mask. + enum HexagonMOTargetFlagVal { + //===------------------------------------------------------------------===// + // Hexagon Specific MachineOperand flags. + MO_NO_FLAG, + + HMOTF_ConstExtended = 1, + + /// MO_PCREL - On a symbol operand, indicates a PC-relative relocation + /// Used for computing a global address for PIC compilations + MO_PCREL, + + /// MO_GOT - Indicates a GOT-relative relocation + MO_GOT, + + // Low or high part of a symbol. + MO_LO16, MO_HI16, + + // Offset from the base of the SDA. + MO_GPREL + }; + +} // End namespace HexagonII. + +} // End namespace llvm. + +#endif |