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Merge pull request #976 from YosysHQ/clifford/fix974

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Fix width detection of memory access with bit slice
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Clifford Wolf 2019-05-03 15:29:44 +02:00 • committed by GitHub
commit 71ede7cb05
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22
tests/simple/mem2reg.v
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@ -92,3 +92,25 @@ module mem2reg_test5(input ctrl, output out);
assign out = bar[foo[0]];
endmodule
// ------------------------------------------------------
module mem2reg_test6 (din, dout);
input wire [3:0] din;
output reg [3:0] dout;
reg [1:0] din_array [1:0];
reg [1:0] dout_array [1:0];
always @* begin
din_array[0] = din[0 +: 2];
din_array[1] = din[2 +: 2];
dout_array[0] = din_array[0];
dout_array[1] = din_array[1];
{dout_array[0][1], dout_array[0][0]} = dout_array[0][0] + dout_array[1][0];
dout[0 +: 2] = dout_array[0];
dout[2 +: 2] = dout_array[1];
end
endmodule