CExpressionEvaluator::SimplifyNode

/* CExpressionEvaluator::SimplifyNode(ExprNode*&) */

ExprNode __thiscall
CExpressionEvaluator::SimplifyNode(CExpressionEvaluator *this,ExprNode **param_1)

{
  byte bVar1;
  byte bVar2;
  ExprNode EVar3;
  ExprNode *pEVar4;
  
  EVar3 = (ExprNode)0x0;
  if (*param_1 != (ExprNode *)0x0) {
    bVar1 = SimplifyNode(this,(ExprNode **)*param_1);
    bVar2 = SimplifyNode(this,(ExprNode **)(*param_1 + 4));
    pEVar4 = *param_1;
    if (*(int *)(pEVar4 + 8) == 0) {
      if (pEVar4[0xc] == (ExprNode)0x26) {
        pEVar4[0xc] = (ExprNode)(bVar2 & bVar1);
        pEVar4 = *param_1;
      }
      else {
        pEVar4[0xc] = (ExprNode)(bVar2 | bVar1);
        pEVar4 = *param_1;
      }
    }
    else if (*(int *)(pEVar4 + 8) == 1) {
      pEVar4[0xc] = (ExprNode)(bVar2 ^ 1);
      pEVar4 = *param_1;
    }
    *(undefined4 *)(pEVar4 + 8) = 2;
    EVar3 = (*param_1)[0xc];
  }
  return EVar3;
}