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      1 //===-- NVPTXUtilities - Utilities -----------------------------*- C++ -*-====//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file contains the declaration of the NVVM specific utility functions.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #ifndef NVPTXUTILITIES_H
     15 #define NVPTXUTILITIES_H
     16 
     17 #include "llvm/IR/Function.h"
     18 #include "llvm/IR/GlobalVariable.h"
     19 #include "llvm/IR/IntrinsicInst.h"
     20 #include "llvm/IR/Value.h"
     21 #include <cstdarg>
     22 #include <set>
     23 #include <string>
     24 #include <vector>
     25 
     26 namespace llvm {
     27 
     28 #define NVCL_IMAGE2D_READONLY_FUNCNAME "__is_image2D_readonly"
     29 #define NVCL_IMAGE3D_READONLY_FUNCNAME "__is_image3D_readonly"
     30 
     31 bool findOneNVVMAnnotation(const llvm::GlobalValue *, std::string, unsigned &);
     32 bool findAllNVVMAnnotation(const llvm::GlobalValue *, std::string,
     33                            std::vector<unsigned> &);
     34 
     35 bool isTexture(const llvm::Value &);
     36 bool isSurface(const llvm::Value &);
     37 bool isSampler(const llvm::Value &);
     38 bool isImage(const llvm::Value &);
     39 bool isImageReadOnly(const llvm::Value &);
     40 bool isImageWriteOnly(const llvm::Value &);
     41 
     42 std::string getTextureName(const llvm::Value &);
     43 std::string getSurfaceName(const llvm::Value &);
     44 std::string getSamplerName(const llvm::Value &);
     45 
     46 bool getMaxNTIDx(const llvm::Function &, unsigned &);
     47 bool getMaxNTIDy(const llvm::Function &, unsigned &);
     48 bool getMaxNTIDz(const llvm::Function &, unsigned &);
     49 
     50 bool getReqNTIDx(const llvm::Function &, unsigned &);
     51 bool getReqNTIDy(const llvm::Function &, unsigned &);
     52 bool getReqNTIDz(const llvm::Function &, unsigned &);
     53 
     54 bool getMinCTASm(const llvm::Function &, unsigned &);
     55 bool isKernelFunction(const llvm::Function &);
     56 
     57 bool getAlign(const llvm::Function &, unsigned index, unsigned &);
     58 bool getAlign(const llvm::CallInst &, unsigned index, unsigned &);
     59 
     60 bool isBarrierIntrinsic(llvm::Intrinsic::ID);
     61 
     62 /// make_vector - Helper function which is useful for building temporary vectors
     63 /// to pass into type construction of CallInst ctors.  This turns a null
     64 /// terminated list of pointers (or other value types) into a real live vector.
     65 ///
     66 template <typename T> inline std::vector<T> make_vector(T A, ...) {
     67   va_list Args;
     68   va_start(Args, A);
     69   std::vector<T> Result;
     70   Result.push_back(A);
     71   while (T Val = va_arg(Args, T))
     72     Result.push_back(Val);
     73   va_end(Args);
     74   return Result;
     75 }
     76 
     77 bool isMemorySpaceTransferIntrinsic(Intrinsic::ID id);
     78 const Value *skipPointerTransfer(const Value *V, bool ignore_GEP_indices);
     79 const Value *
     80 skipPointerTransfer(const Value *V, std::set<const Value *> &processed);
     81 BasicBlock *getParentBlock(Value *v);
     82 Function *getParentFunction(Value *v);
     83 void dumpBlock(Value *v, char *blockName);
     84 Instruction *getInst(Value *base, char *instName);
     85 void dumpInst(Value *base, char *instName);
     86 void dumpInstRec(Value *v, std::set<Instruction *> *visited);
     87 void dumpInstRec(Value *v);
     88 void dumpParent(Value *v);
     89 
     90 }
     91 
     92 #endif
     93