[Bug target/51784] PIC register not correctly preserved in nested funcs / with non-local goto

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51784

--- Comment #25 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2012-01-14 11:33:20 UTC ---
> I don't think this is a regression - I think it's been there for(ever/long
> time).

I don't want to waste time arguing about the regression tag, but
gcc.dg/tree-prof/pr44777.c and its avatars gcc.c-torture/execute/comp-goto-2.c
and gcc.c-torture/execute/920501-7.c pass (I do not say work) with 
-fprofile-generate -D_PROFILE_GENERATE -m32 for gcc 4.6.2 or for trunk with
r182920 reverted on x86_64-apple-darwin10 (i.e. no pr44777 on this platform).

> I guess xfailing is the thing to do for now ...

I hate xfail in this kind of situation: I see it as a hypocritical way to say
"won't fix". Note the test passes with -fno-pic, so I'ld prefer an additional
option -fno-pic for darwin.

BTW what happens on i?86-linux-* with -fpic?