[PATCH] D19040: Remove unnecessary load via GOT when accessing globals with PIE in x86_64

[H.J. Lu via llvm-commits]

On Thu, Apr 14, 2016 at 4:15 PM, Sriraman Tallam <tmsriram at google.com> wrote:
> On Thu, Apr 14, 2016 at 4:07 PM, H.J. Lu <hjl.tools at gmail.com> wrote:
>> On Thu, Apr 14, 2016 at 4:05 PM, Sriraman Tallam <tmsriram at google.com> wrote:
>>> On Thu, Apr 14, 2016 at 3:59 PM, H.J Lu <hjl.tools at gmail.com> wrote:
>>>> hjl.tools added a subscriber: hjl.tools.
>>>> hjl.tools added a comment.
>>>>
>>>> Does it fix
>>>>
>>>> https://llvm.org/bugs/show_bug.cgi?id=24964
>>>
>>> Yes it does.  Infact, I used an identical example to motivate this
>>> patch. I will reference this bug.
>>>
>>
>> Here is another related one if  you are interested:
>>
>> https://llvm.org/bugs/show_bug.cgi?id=24970
>
> Thanks.  LLVM need not generate the @PLT but the linker knows how to
> remove that so this is not an issue IMO.
>

It isn't an issue for x86-64.  But setting up PLT is expensive for i386,
which requires EBX.


H.J.