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+//===-- 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