[PATCH] D19528: [ELF] - Implemented -z combrelocs/nocombreloc.

[George Rimar via llvm-commits]

>On 26 April 2016 at 06:30, George Rimar <grimar at accesssoftek.com> wrote:
>> grimar created this revision.
>> grimar added reviewers: ruiu, rafael.
>> grimar added subscribers: grimar, llvm-commits.
>>
>> This is the option which sorts relocs to optimize dynamic linker performance.
>> -z combelocs is the default in gold, also it ignores -z nocombreloc
>> (https://sourceware.org/bugzilla/show_bug.cgi?id=11062), so I guess we can do the same.
>> So this patch does not add handling of these options, just ignores them,
>> but adds sorting of relocations before writing them to rel[a].dyn section.
>>
>> Details about option (taken from http://people.redhat.com/jakub/prelink.pdf, p.2):
>
>
>Does this have any application outside of prelinking? As far as I can
>tell that is pretty much dead.
>
>Cheers,
>Rafael

May be I am missing something, but I think -z combreloc is usefull ant 
very actual nowadays (up to 16% load time boost according to Ian Lance Taylor):
http://www.airs.com/blog/archives/186

George.