Chandler Carruth 37097623bb This reverts a long string of commits to the Hexagon backend. These
commits have had several major issues pointed out in review, and those
issues are not being addressed in a timely fashion. Furthermore, this
was all committed leading up to the v3.1 branch, and we don't need piles
of code with outstanding issues in the branch.

It is possible that not all of these commits were necessary to revert to
get us back to a green state, but I'm going to let the Hexagon
maintainer sort that out. They can recommit, in order, after addressing
the feedback.

Reverted commits, with some notes:

Primary commit r154616: HexagonPacketizer
  - There are lots of review comments here. This is the primary reason
    for reverting. In particular, it introduced large amount of warnings
    due to a bad construct in tablegen.
  - Follow-up commits that should be folded back into this when
    reposting:
    - r154622: CMake fixes
    - r154660: Fix numerous build warnings in release builds.
  - Please don't resubmit this until the three commits above are
    included, and the issues in review addressed.

Primary commit r154695: Pass to replace transfer/copy ...
  - Reverted to minimize merge conflicts. I'm not aware of specific
    issues with this patch.

Primary commit r154703: New Value Jump.
  - Primarily reverted due to merge conflicts.
  - Follow-up commits that should be folded back into this when
    reposting:
    - r154703: Remove iostream usage
    - r154758: Fix CMake builds
    - r154759: Fix build warnings in release builds
  - Please incorporate these fixes and and review feedback before
    resubmitting.

Primary commit r154829: Hexagon V5 (floating point) support.
  - Primarily reverted due to merge conflicts.
  - Follow-up commits that should be folded back into this when
    reposting:
    - r154841: Remove unused variable (fixing build warnings)

There are also accompanying Clang commits that will be reverted for
consistency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155047 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-18 21:31:19 +00:00

74 lines
2.4 KiB
C++

//=-- Hexagon.h - Top-level interface for Hexagon representation --*- 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 the entry points for global functions defined in the LLVM
// Hexagon back-end.
//
//===----------------------------------------------------------------------===//
#ifndef TARGET_Hexagon_H
#define TARGET_Hexagon_H
#include "MCTargetDesc/HexagonMCTargetDesc.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetMachine.h"
namespace llvm {
class FunctionPass;
class TargetMachine;
class MachineInstr;
class MCInst;
class HexagonAsmPrinter;
class HexagonTargetMachine;
class raw_ostream;
FunctionPass *createHexagonISelDag(HexagonTargetMachine &TM);
FunctionPass *createHexagonDelaySlotFillerPass(TargetMachine &TM);
FunctionPass *createHexagonFPMoverPass(TargetMachine &TM);
FunctionPass *createHexagonRemoveExtendOps(HexagonTargetMachine &TM);
FunctionPass *createHexagonCFGOptimizer(HexagonTargetMachine &TM);
FunctionPass *createHexagonSplitTFRCondSets(HexagonTargetMachine &TM);
FunctionPass *createHexagonExpandPredSpillCode(HexagonTargetMachine &TM);
FunctionPass *createHexagonHardwareLoops();
FunctionPass *createHexagonPeephole();
FunctionPass *createHexagonFixupHwLoops();
/* TODO: object output.
MCCodeEmitter *createHexagonMCCodeEmitter(const Target &,
TargetMachine &TM,
MCContext &Ctx);
*/
/* TODO: assembler input.
TargetAsmBackend *createHexagonAsmBackend(const Target &, const std::string &);
*/
void HexagonLowerToMC(const MachineInstr *MI, MCInst &MCI,
HexagonAsmPrinter &AP);
} // end namespace llvm;
#define Hexagon_POINTER_SIZE 4
#define Hexagon_PointerSize (Hexagon_POINTER_SIZE)
#define Hexagon_PointerSize_Bits (Hexagon_POINTER_SIZE * 8)
#define Hexagon_WordSize Hexagon_PointerSize
#define Hexagon_WordSize_Bits Hexagon_PointerSize_Bits
// allocframe saves LR and FP on stack before allocating
// a new stack frame. This takes 8 bytes.
#define HEXAGON_LRFP_SIZE 8
// Normal instruction size (in bytes).
#define HEXAGON_INSTR_SIZE 4
// Maximum number of words in a packet (in instructions).
#define HEXAGON_PACKET_SIZE 4
#endif