void FUN_00422d84(void)

{

  int iVar1;

  if (DAT_004411b4 == (undefined4 *)0x0) {

    DAT_004411b4 = (undefined4 *)malloc(4)   //possible issue identified - semgrep

    if (DAT_004411b4 == (undefined4 *)0x0) {

      FUN_00422d3c("out of dynamic memory in yyensure_buffer_stack()");

    }

    *DAT_004411b4 = 0;

    DAT_004411c0 = 1;

    DAT_004411b8 = 0;

  }

  else {

    iVar1 = DAT_004411c0 + 8;

    if (DAT_004411c0 - 1U <= DAT_004411b8) {

      DAT_004411b4 = (undefined4 *)realloc(DAT_004411b4,iVar1 * 4)   //possible issue identified - semgrep

      if (DAT_004411b4 == (undefined4 *)0x0) {

        FUN_00422d3c("out of dynamic memory in yyensure_buffer_stack()");

      }

      memset((void *)((int)DAT_004411b4 + DAT_004411c0 * 4),0,0x20)   //possible issue identified - semgrep

      DAT_004411c0 = iVar1;

      return;

    }

  }

  return;

}