[Bug target/43700] [4.4/4.5/4.6 Regression] global register variables defect

[mikpe at it dot uu dot se]

------- Comment #5 from mikpe at it dot uu dot se  2010-04-12 09:02 -------
(In reply to comment #4)
> Isn't this just a user error then?  You should have used -ffixed-20 if you use
> a call saved register as global register IMHO.

gcc's documentation (I'm looking at the global register variables node in 4.5's
extend.texi) states that passing -ffixed-reg is only needed if the translation
unit doesn't contain a declaration of that global register variable.

In this PR's test case the declaration is present, so -ffixed-20 should not be
needed.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43700