Home | History | Annotate | Download | only in libSPIRV 
      1 //===- SPIRVBasicBlock.cpp - SPIR-V Basic Block ------------------*- C++ -*-===//
      2 //
      3 //                     The LLVM/SPIRV Translator
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 // Copyright (c) 2014 Advanced Micro Devices, Inc. All rights reserved.
      9 //
     10 // Permission is hereby granted, free of charge, to any person obtaining a
     11 // copy of this software and associated documentation files (the "Software"),
     12 // to deal with the Software without restriction, including without limitation
     13 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
     14 // and/or sell copies of the Software, and to permit persons to whom the
     15 // Software is furnished to do so, subject to the following conditions:
     16 //
     17 // Redistributions of source code must retain the above copyright notice,
     18 // this list of conditions and the following disclaimers.
     19 // Redistributions in binary form must reproduce the above copyright notice,
     20 // this list of conditions and the following disclaimers in the documentation
     21 // and/or other materials provided with the distribution.
     22 // Neither the names of Advanced Micro Devices, Inc., nor the names of its
     23 // contributors may be used to endorse or promote products derived from this
     24 // Software without specific prior written permission.
     25 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     26 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     27 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     28 // CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     29 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     30 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH
     31 // THE SOFTWARE.
     32 //
     33 //===----------------------------------------------------------------------===//
     34 /// \file
     35 ///
     36 /// This file implements SPIRV basic block.
     37 ///
     38 //===----------------------------------------------------------------------===//
     39 
     40 #include "SPIRVEntry.h"
     41 #include "SPIRVValue.h"
     42 #include "SPIRVBasicBlock.h"
     43 #include "SPIRVInstruction.h"
     44 #include "SPIRVFunction.h"
     45 #include "SPIRVStream.h"
     46 
     47 #include <iostream>
     48 
     49 using namespace SPIRV;
     50 
     51 SPIRVBasicBlock::SPIRVBasicBlock(SPIRVId TheId, SPIRVFunction *Func)
     52   :SPIRVValue(Func->getModule(), 2, OpLabel, TheId), ParentF(Func) {
     53   setAttr();
     54   validate();
     55 }
     56 
     57 SPIRVDecoder
     58 SPIRVBasicBlock::getDecoder(std::istream &IS){
     59   return SPIRVDecoder(IS, *this);
     60 }
     61 
     62 /// Assume I contains valid Id.
     63 SPIRVInstruction *
     64 SPIRVBasicBlock::addInstruction(SPIRVInstruction *I) {
     65   assert(I && "Invalid instruction");
     66   Module->add(I);
     67   I->setParent(this);
     68   InstVec.push_back(I);
     69   return I;
     70 }
     71 
     72 void
     73 SPIRVBasicBlock::encodeChildren(spv_ostream &O) const {
     74   O << SPIRVNL();
     75   for (size_t i = 0, e = InstVec.size(); i != e; ++i)
     76     O << *InstVec[i];
     77 }
     78 
     79 _SPIRV_IMP_ENCDEC1(SPIRVBasicBlock, Id)
     80 
     81 void
     82 SPIRVBasicBlock::setScope(SPIRVEntry *Scope) {
     83   assert(Scope && Scope->getOpCode() == OpFunction && "Invalid scope");
     84   setParent(static_cast<SPIRVFunction*>(Scope));
     85 }
     86