Method parseRegion

lib/Bytecode/Reader/BytecodeReader.cpp:1263–1289

Helper function to parse a region during deserialization.

  /// Helper function to parse a region during deserialization.
  static LogicalResult
  parseRegion(EncodingReader &reader, OpBuilder &builder, Location loc,
              std::vector<Value> &parentValueIndexList,
              ArrayRef<ArrayRef<uint8_t>> constants, LazyTypeTable &types,
              DenseElementsAttrCache &constCache,
              DebugInfoReader::Iterator &diIterator, MLIRContext &context,
              Region &regionToPopulate,
              const BytecodeVersion &bytecodeVersion) {
    // Read number of blocks in the region.
    uint64_t numBlocks;
    if (failed(reader.readVarInt(numBlocks)))
      return reader.emitError() << "failed to read region block count";

    // Parse each block in the region.
    for (uint64_t i = 0; i < numBlocks; ++i) {
      Block &currentBlock = regionToPopulate.emplaceBlock();
      // The value context for this block's arguments and operations starts
      // with values defined in the parent scope.
      if (failed(parseBlock(reader, builder, loc, currentBlock,
                            parentValueIndexList, constants, types, constCache,
                            diIterator, context, bytecodeVersion)))
        return reader.emitError()
               << "failed to parse block " << i << " in region.";
    }

    return success();
  }

  // ===----------------------------------------------------------------------===//
  // Helper Functions for Attribute Deserialization