-- If pattern --



// block A
switch (the_var) {
check == 10 {
 atob();
 // block B
 switch (the_var) {
 default: {
  btoc();
 }
 }
 break;
}
default: {
 atoc();
}
}
// block C



-- If-else pattern --



// block A
switch (the_var) {
check == 15 {
 // block B
 switch (the_var) {
 default: {
 }
 }
 break;
}
default: {
 // block C
 switch (the_var) {
 default: {
 }
 }
}
}
// block D



-- Loop + tail pattern --



L9: while(1) {
 // block A
 var check = maybe();
 switch (the_var) {
 default: {
 }
 }
 // block B
 switch (the_var) {
 check == 41 {
  break;
 }
 default: {
  break L9;
 }
 }
}
// block C



-- Loop with phi to head 

// code 1
switch (the_var) {
default: {
 var $i_0 = 0;var $x_0 = 5; 
}
}
L14: while(1) {
 // code 2
 switch (the_var) {
 $2 {
  break;
 }
 default: {
  var $x_1 = $x_0; 
  label = 18;
  break L14;
 }
 }
 // code 3
 switch (the_var) {
 $6 {
  break L14;
  break;
 }
 default: {
  var $i_0 = $7;var $x_0 = $5; 
 }
 }
}
if (label == 18) {
 // code 7
}
// code 4
switch (the_var) {
$10 {
 // code 5
 switch (the_var) {
 default: {
 }
 }
 break;
}
default: {
}
}
// code 6
switch (the_var) {
default: {
 var $x_1 = $13; 
}
}
// code 7



-- phi on split dead ends --



// block A...................................................................................................
switch (the_var) {
chak() {
 atob();
 // block B...................................................................................................
 switch (the_var) {
 default: {
  btod();
 }
 }
 // block D
 break;
}
default: {
 atoc();
 // block C...................................................................................................
 switch (the_var) {
 default: {
  ctod2();
 }
 }
 // block D
}
}



-- Unbalanced with a dead end --



// block A
switch (the_var) {
check == 10 {
 break;
}
default: {
 return C;
}
}
while(1) {
 // block B
 switch (the_var) {
 default: {
 }
 }
 // block D
 switch (the_var) {
 default: {
 }
 }
}



-- if (expensive || expensive2) X else Y; Z --



// block A
L37: do {
 switch (the_var) {
 expensive() {
  label = 33;
  break;
 }
 default: {
  // block B
  switch (the_var) {
  expensive2() {
   label = 33;
   break L37;
   break;
  }
  default: {
  }
  }
  // block D
  switch (the_var) {
  default: {
  }
  }
 }
 }
} while(0);
if (label == 33) {
 // block C;
 switch (the_var) {
 default: {
 }
 }
}
while(1) {
 // block E
 switch (the_var) {
 default: {
 }
 }
 // block F
 switch (the_var) {
 default: {
 }
 }
}



-- conditional loop --



// block A
L46: do {
 switch (the_var) {
 shouldLoop() {
  while(1) {
   // block B
   switch (the_var) {
   moarLoop() {
    break;
   }
   default: {
    break L46;
   }
   }
  }
  break;
 }
 default: {
 }
 }
} while(0);
// block C