Function GetArrayLength

source/opt/interface_var_sroa.cpp:41–50

Get the length of the OpTypeArray |array_type|.

// Get the length of the OpTypeArray |array_type|.
uint32_t GetArrayLength(analysis::DefUseManager* def_use_mgr,
                        Instruction* array_type) {
  assert(array_type->opcode() == spv::Op::OpTypeArray);
  uint32_t const_int_id =
      array_type->GetSingleWordInOperand(kOpTypeArrayLengthInOperandIndex);
  Instruction* array_length_inst = def_use_mgr->GetDef(const_int_id);
  assert(array_length_inst->opcode() == spv::Op::OpConstant);
  return array_length_inst->GetSingleWordInOperand(
      kOpConstantValueInOperandIndex);
}

// Get the element type instruction of the OpTypeArray |array_type|.
Instruction* GetArrayElementType(analysis::DefUseManager* def_use_mgr,