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Re: Problems building GNAT on OS X with top-of-tree

On Thursday, October 17, 2002, at 02:38  PM, Geoffrey Keating wrote:
On Thursday, October 17, 2002, at 02:10  PM, Dale Johannesen wrote:
Actually this looks like it is connected to Geoff's recent patch
which introduced the LSJR label.  Geoff, is
current_function_uses_pic_offset_table not getting set anywhere?
That would account for his symptom.

It is supposed to be set by machopic_function_base_name, which is called to generate the label. Looking at the code, my suspicion is that the original load_macho_picbase pattern is getting deleted by flow because it appears dead, but that also deletes the label that the macho_correct_pic needs.

If so, the solution is to use a real CODE_LABEL instead of having the label inside load_macho_picbase, but this will be a complex change.
Hmm. How do you keep the bcl and the following label together through the scheduler?
SCHED_GROUP_P used to work on labels, but it doesn't any more, and I never found
another way to do it. Would a USE of the label work?

(This is probably unrelated to your earlier bug.)
Well, it's certainly related, in the sense that if I hadn't fixed that bug this code would now fail at runtime instead of compile-time…
(I meant Geert Bosch's earlier bug, not yours.  Sorry to be unclear.)

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