[cfe-dev] LTO on FreeBSD

[Clark Gaebel]

Just theoretically, would it be relatively easy to make the driver do
it? It sure would make -O4 a lot more enticing.

On 06/29/10 18:14, David Chisnall wrote:
> On 29 Jun 2010, at 23:05, SKL wrote:
>
>   
>> What is the OS X version finding and using that the FreeBSD version isn't? I see mention on the llvm site of compiling and using the ld gold plugins, but that appears to be more for llvm-gcc than clang.
>>     
>
> Exactly that.  The FreeBSD linker does not support LTO.  Gold is GPLv3, so is unlikely to ever make it into the FreeBSD base system.  If you want to use LTO on FreeBSD, then you have to do it manually, via llvm-link + opt + llc.  So far, no one has been sufficiently motivated to make the clang driver able to do this itself.
>
> David
>
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-- 
Regards,
-Clark