[Ffmpeg-devel] Re: Broken trunk on AMD64 with PIC enabled

[Loren Merritt]

On Wed, 4 Apr 2007, Diego 'Flameeyes' Petten? wrote:
> On Tue, 3 Apr 2007, Michael Niedermayer wrote:
>
>> maybe you should check what syntax gcc uses when rip relative
>> addressing is inpossible
>
> And I've been trying to find out, sincerely, I have no idea of ASM at
> all.. that's why I posted, I hoped someone else had a clue.

gcc uses extra instructions

non-PIC:
   mov foo(rcx, rdx, 2), eax

PIC:
   lea foo(rip), rax
   lea (rax, rdx, 2), rax
   mov (rax, rcx, 1), eax

--Loren Merritt