[Issue 23963] New: Illegal instruction / segfalult with -preview=dip1021

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23963

          Issue ID: 23963
           Summary: Illegal instruction / segfalult with -preview=dip1021
           Product: D
           Version: D2
          Hardware: x86
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: witold.baryluk+d at gmail.com

Created attachment 1879
  --> https://issues.dlang.org/attachment.cgi?id=1879&action=edit
Minimized with dustmite

dmd v2.104.0, Linux 64-bit


ulong richards() {
struct task {
  }

  int qpktcount = 0;
  int holdcount ;
  task* findtcb(int id) {
      task* t ;

        import std.stdio ;
        writefln!"\nBad task id %d"(id);
      return t;
  }

  return qpktcount ;
}



$ dmd -c -preview=dip1021 richards.reduced/richards.d 
Illegal instruction (core dumped)
$

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