internal error: lval-rval width mismatch

[cliffordwolf]

The following module fails to build with icarus verilog:

module issue_022(a, y);
  input [1:0] a;
  output [1:0] y;
  assign y = 'bx ? 2'b0 : a;
endmodule

the error message produced is:

internal error: lval-rval width mismatch: rval->vector_width()==1, lval->vector_width()==2
assert: elaborate.cc:150: failed assertion rval->vector_width() >= lval->vector_width()

This is with git rev 68f8de2.

[martinwhitaker]

I've pushed a fix for this bug to the git master branch.