[Bug ld/32591] undue GOTPCREL relaxation attempts

[hjl.tools at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=32591

--- Comment #8 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Jan Beulich from comment #7)
> You say "estimate", and since you exclude linker created sections it looks
> like it very much is just an estimate. While for the specific case of Xen
> this may be sufficient (see below though), in the general case it won't
> afaict.
> 
> From looking over the patch I also didn't get the impression that this would
> allow to fall back to the MOV -> LEA transformation when the MOV-from-GOT ->
> MOV-imm one would result in an overflow. Did I overlook anything?

My patch doesn't support fallback which is very intrusive with few benefits.
My patch should cover most cases.

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