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Re: optimization/9279: [3.2 regression] [Sparc] combine bug
| > (2) possibly a wrong code generation -- David gave some
| > references.
|
| I must have missed this discussion, Could you give me a pointer?
Sorry, that is part of e-mail exhancge I had with Eric Dadid
yesterday. Quoting him:
This patch and the necessary PowerPC patch exposed other bugs in
the compiler regarding REG_EQUAL notes in loop unrolling:
2002-10-04 David Edelsohn <edelsohn@gnu.org>
* unroll.c (copy_loop_body): Remove REG_EQUAL note attached to
copied instruction if the note is not loop invariant.
The patches may have other co-dependencies we do not know about.
Eric agreed with him.
I would like to avoid last time minute patch chasing.
-- Gaby