[LLVMdev] [patch] add support for PIC on linux x86-64

[Rafael Espindola]

The attached patch adds support for PIC on linux x86-64. It also adds
some tests. The patch fixes tests 1, 10 and 11. I would like to keep
all tests, since I find the assembler printer code a bit hard to read,
and I like to have tests around to find out if a change does what I
think it does.

With this patch I was able to bootstrap gcc in linux x86-64 with
shared libraries enabled :-)

Cheers,
-- 
Rafael Avila de Espindola

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