llvm-6502/lib/Target/NVPTX/NVPTX.h
Justin Holewinski 7536ecf291 [NVPTX] Add GenericToNVVM IR converter to better handle idiomatic LLVM IR inputs
This converter currently only handles global variables in address space 0. For
these variables, they are promoted to address space 1 (global memory), and all
uses are updated to point to the result of a cvta.global instruction on the new
variable.

The motivation for this is address space 0 global variables are illegal since we
cannot declare variables in the generic address space.  Instead, we place the
variables in address space 1 and explicitly convert the pointer to address
space 0. This is primarily intended to help new users who expect to be able to
place global variables in the default address space.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182254 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 12:13:32 +00:00

143 lines
2.9 KiB
C++

//===-- NVPTX.h - Top-level interface for NVPTX 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 NVPTX back-end.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TARGET_NVPTX_H
#define LLVM_TARGET_NVPTX_H
#include "MCTargetDesc/NVPTXBaseInfo.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Value.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Target/TargetMachine.h"
#include <cassert>
#include <iosfwd>
namespace llvm {
class NVPTXTargetMachine;
class FunctionPass;
class formatted_raw_ostream;
namespace NVPTXCC {
enum CondCodes {
EQ,
NE,
LT,
LE,
GT,
GE
};
}
inline static const char *NVPTXCondCodeToString(NVPTXCC::CondCodes CC) {
switch (CC) {
case NVPTXCC::NE:
return "ne";
case NVPTXCC::EQ:
return "eq";
case NVPTXCC::LT:
return "lt";
case NVPTXCC::LE:
return "le";
case NVPTXCC::GT:
return "gt";
case NVPTXCC::GE:
return "ge";
}
llvm_unreachable("Unknown condition code");
}
FunctionPass *
createNVPTXISelDag(NVPTXTargetMachine &TM, llvm::CodeGenOpt::Level OptLevel);
FunctionPass *createLowerStructArgsPass(NVPTXTargetMachine &);
FunctionPass *createNVPTXReMatPass(NVPTXTargetMachine &);
FunctionPass *createNVPTXReMatBlockPass(NVPTXTargetMachine &);
ModulePass *createGenericToNVVMPass();
bool isImageOrSamplerVal(const Value *, const Module *);
extern Target TheNVPTXTarget32;
extern Target TheNVPTXTarget64;
namespace NVPTX {
enum DrvInterface {
NVCL,
CUDA,
TEST
};
// A field inside TSFlags needs a shift and a mask. The usage is
// always as follows :
// ((TSFlags & fieldMask) >> fieldShift)
// The enum keeps the mask, the shift, and all valid values of the
// field in one place.
enum VecInstType {
VecInstTypeShift = 0,
VecInstTypeMask = 0xF,
VecNOP = 0,
VecLoad = 1,
VecStore = 2,
VecBuild = 3,
VecShuffle = 4,
VecExtract = 5,
VecInsert = 6,
VecDest = 7,
VecOther = 15
};
enum SimpleMove {
SimpleMoveMask = 0x10,
SimpleMoveShift = 4
};
enum LoadStore {
isLoadMask = 0x20,
isLoadShift = 5,
isStoreMask = 0x40,
isStoreShift = 6
};
namespace PTXLdStInstCode {
enum AddressSpace {
GENERIC = 0,
GLOBAL = 1,
CONSTANT = 2,
SHARED = 3,
PARAM = 4,
LOCAL = 5
};
enum FromType {
Unsigned = 0,
Signed,
Float
};
enum VecType {
Scalar = 1,
V2 = 2,
V4 = 4
};
}
}
} // end namespace llvm;
// Defines symbolic names for NVPTX registers. This defines a mapping from
// register name to register number.
#define GET_REGINFO_ENUM
#include "NVPTXGenRegisterInfo.inc"
// Defines symbolic names for the NVPTX instructions.
#define GET_INSTRINFO_ENUM
#include "NVPTXGenInstrInfo.inc"
#endif