Method Analyze

source/opt/loop_utils.cpp:717–735

Class to gather some metrics about a region of interest.

// Class to gather some metrics about a region of interest.
void CodeMetrics::Analyze(const Loop& loop) {
  CFG& cfg = *loop.GetContext()->cfg();

  roi_size_ = 0;
  block_sizes_.clear();

  for (uint32_t id : loop.GetBlocks()) {
    const BasicBlock* bb = cfg.block(id);
    size_t bb_size = 0;
    bb->ForEachInst([&bb_size](const Instruction* insn) {
      if (insn->opcode() == spv::Op::OpLabel) return;
      if (insn->IsNop()) return;
      if (insn->opcode() == spv::Op::OpPhi) return;
      bb_size++;
    });
    block_sizes_[bb->id()] = bb_size;
    roi_size_ += bb_size;
  }
}

}  // namespace opt
}  // namespace spvtools