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https://github.com/YosysHQ/yosys
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51 lines
949 B
Text
51 lines
949 B
Text
read_verilog <<EOT
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module top(input A, output Y);
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assign A = 1;
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assign Y = A;
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endmodule
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EOT
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hierarchy -top top; proc
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logger -expect warning "Drivers conflicting with a constant" 1
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logger -expect log "Found and reported 1 problems." 1
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check
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logger -check-expected
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design -reset
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read_verilog <<EOT
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module top(input A, output Y);
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buffer some_buffer(A, Y);
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assign Y = 1;
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endmodule
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module buffer(input A, output Y);
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assign Y = A;
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endmodule
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EOT
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hierarchy -top top; proc
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logger -expect warning "Drivers conflicting with a constant" 1
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logger -expect log "Found and reported 1 problems." 1
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check
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logger -check-expected
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design -reset
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read_verilog <<EOT
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module top(input clk, input A, output Y);
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reg Q;
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always @(posedge clk) Q <= A;
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assign Q = 1;
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assign Y = A;
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endmodule
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EOT
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hierarchy -top top
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logger -expect warning "Drivers conflicting with a constant" 1
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logger -expect log "Found and reported 1 problems." 1
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check
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logger -check-expected
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