Does gcc violate the ia64 ABI?

[Andreas Schwab]

"H. J. Lu" <hjl@lucon.org> writes:

|> I will open a bug in gcc bugzilla when conversion is done. In the
|> meantime, I opened
|> 
|> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=91056
|> 
|> The problem is gcc doesn't save/store gp across call. According to the
|> ia64 ABI, callee can change gp and gp must be saved/restore by caller
|> across calls. It is on page 5-2 in the Itanium Software Conventions
|> and Runtime Architecture Guide. Am I right?

I don't see where's the problem.  If a function does not use a
call-clobbered register there is no need for saving/restoring it.  It's
the duty of the caller to do it.

Andreas.

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Andreas Schwab, SuSE Labs, schwab@suse.de
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