mirror of
				https://github.com/YosysHQ/yosys
				synced 2025-11-03 21:09:12 +00:00 
			
		
		
		
	If a local variable is always assigned before it is used, then adding nosync prevents latches from being needlessly generated.
		
			
				
	
	
		
			21 lines
		
	
	
	
		
			255 B
		
	
	
	
		
			Text
		
	
	
	
	
	
			
		
		
	
	
			21 lines
		
	
	
	
		
			255 B
		
	
	
	
		
			Text
		
	
	
	
	
	
read_verilog -sv <<EOF
 | 
						|
module top;
 | 
						|
logic x;
 | 
						|
logic z;
 | 
						|
assign z = 1'b1;
 | 
						|
always_comb begin
 | 
						|
    logic y;
 | 
						|
    case (x)
 | 
						|
    1'b0:
 | 
						|
        y = 1;
 | 
						|
    default:
 | 
						|
        y = 0;
 | 
						|
    endcase
 | 
						|
    if (z)
 | 
						|
        x = y;
 | 
						|
    else
 | 
						|
        x = 1'b0;
 | 
						|
end
 | 
						|
endmodule
 | 
						|
EOF
 | 
						|
proc
 |