Survey: Can we drop support for LLVM versions prior to 3.5?

Daniel N via digitalmars-d-ldc digitalmars-d-ldc at
Fri Apr 10 02:08:29 PDT 2015

On Friday, 10 April 2015 at 05:56:36 UTC, Kai Nacke wrote:
> Hi all!
> Currently LDC can be compiled with LLVM 3.1-3.6 with support 
> for LLVM trunk constantly added.
> Because the LLVM API is not stable this broad support becomes 
> more and more a burden. It is also likely that this set of LLVM 
> libraries will not be supported by the new Travis container 
> (which I like to use because of more RAM and CPU cores).
> Versions 3.1, 3.2 and 3.3 have serious bugs which forces us to 
> disable optimizations for some tests. Especially 3.3 is 
> unusable with OS X!
> Therefore I like to know which LLVM version do you use with LDC.
> If no one objects then the plan would be that the next major 
> release is the last one which can be compiled with LLVM 3.1-3.4.
> Please give feedback!
> Regards,
> Kai

Yes, please do! Personally I only use 3.6+ but 3.5 is a 
reasonable level, I have been meaning to suggest the same.

Considering llvm project is very refactoring happy, any new code 
I tried to write for ldc quickly degraded into ifdef hell, 
actually to the point where I lost motivation to contribute at 
all, my respects that you have managed this long.

If we jump to 3.5 I might give it another whirl. :)

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