Segfault in code generated by Verilator

[veripoolbot]

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Author Name: Clifford Wolf (@cliffordwolf)
Original Redmine Issue: 765 from https://www.veripool.org
Original Date: 2014-05-12
Original Assignee: Wilson Snyder (@wsnyder)

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Verilator 5f5a3db creates C code that segfaults for a=128.

  input signed [7:0] a;
  output [15:0] y;
  assign y = {3{{~22'd0}}} <<< {4{a}};
endmodule

Self-contained test case:

http://svn.clifford.at/handicraft/2014/verilatortest/test014.v

http://svn.clifford.at/handicraft/2014/verilatortest/test014.cc

http://svn.clifford.at/handicraft/2014/verilatortest/test014.sh

[veripoolbot]

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Original Redmine Comment
Author Name: Wilson Snyder (@wsnyder)
Original Date: 2014-05-13T12:12:20Z

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The << was so far over it became a negative number and confused it.

Fixed in git towards 3.862.

[veripoolbot]

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Original Redmine Comment
Author Name: Wilson Snyder (@wsnyder)
Original Date: 2014-06-11T00:57:22Z

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In 3.862.