# verbose

graph macc22
	node mul_1 mul A 32 B 32 Y 32
	node mul_2 mul A 32 B 32 Y 32
	node add_1 add A 32 B 32 Y 32
	connect mul_1 Y add_1 A
	connect mul_2 Y add_1 B
	extern mul_1 A B
	extern mul_2 A B
	extern add_1 Y
endgraph

graph macc4x2
	node mul_1 mul A 32 B 32 Y 32
	node mul_2 mul A 32 B 32 Y 32
	node mul_3 mul A 32 B 32 Y 32
	node mul_4 mul A 32 B 32 Y 32
	node add_1 add A 32 B 32 Y 32
	node add_2 add A 32 B 32 Y 32
	node add_3 add A 32 B 32 Y 32
	connect mul_1 Y add_1 A
	connect mul_2 Y add_1 B
	connect mul_3 Y add_2 A
	connect mul_4 Y add_2 B
	connect add_1 Y add_3 A
	connect add_2 Y add_3 B
	extern mul_1 A B
	extern mul_2 A B
	extern mul_3 A B
	extern mul_4 A B
	extern add_3 Y
endgraph

solve macc22 macc4x2
expect 2

swapgroup mul A B

solve macc22 macc4x2
expect 2

swapperm add A B : B A

solve macc22 macc4x2
expect 4