https://issues.dlang.org/show_bug.cgi?id=15988

          Issue ID: 15988
           Summary: [REG v2.070] Massive Compile Time Slowdown
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: regression
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: jack@jackstouffer.com

According to http://forum.dlang.org/post/yhnfnliteruwixsaefab@forum.dlang.org and http://forum.dlang.org/post/byhninhkueqpscawffqh@forum.dlang.org DMD suffered anywhere between a 47% to 360% increase in compile times.

My largest project actually saw a decrease in compile times, so we have to solicit the community for examples.

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