[dmd-beta] dmd 2.049 beta

David Simcha dsimcha at gmail.com
Tue Sep 14 18:06:47 PDT 2010

  I've found the offending lines of code and committed a workaround to 
Phobos.  DFL now compiles properly.  Obviously the underlying bug is in 
DMD, not Phobos, but I suggest we go ahead w/ this release anyhow because:

1.  I have no freakin' clue how to even reproduce the underlying DMD bug 
in a reasonably small test case, let alone fix it.  About all I know is 
that it's somehow related to auto returns (because that's what "solved" 
the problem when I changed it in Phobos).  My gut feeling is that this 
is probably one of those bugs that only shows up under a very weird 
combination of circumstances, such that it's very unlikely anyone will 
run into it.

2.  It's not a regression (or at least not a recent one) because the bug 
shows up using 2.048 DMD with recent SVNs of Phobos.

On 9/14/2010 7:55 PM, David Simcha wrote:
>> Issues:
>> (Major)  Compiling DFL crashes DMD on dfl's socket.d.  This is 
>> related to changes in Phobos, not DMD.  Compiling DFL with DMD 2.049 
>> + Phobos 2.049 OR DMD 2.048 + SVN Phobos crashes DMD, but compiling 
>> w/ DMD 2.048 + Phobos 2.048 doesn't.  I'm working on figuring out 
>> exactly when/how this broke.  I will keep the list posted.
> Ok, I've done the dirty work of binary searching through revisions to 
> find the one that actually broke this.  It's Phobos revision 1923 
> (http://dsource.org/projects/phobos/changeset/1923).  If I use DMD 
> 2.049 + druntime 2.049 + Phobos SVN 1922, DFL compiles fine.  If I use 
> DMD 20.49 + druntime 2.049 + Phobos SVN 1923, the compiler just hard 
> crashes without any error message whatsoever on Windows 7.

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