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About PR optimization/9279
- From: Eric Botcazou <ebotcazou at libertysurf dot fr>
- To: Gabriel Dos Reis <gdr at integrable-solutions dot net>
- Cc: gcc at gcc dot gnu dot org
- Date: Fri, 21 Mar 2003 17:20:33 +0100
- Subject: About PR optimization/9279
Hello Gaby,
This is the famous PR about the unprecise semantics of LOAD_EXTEND_OP on the
3.2 branch, which causes the combine pass to perform overly optimistic
optimizations on several RISC platforms and breaks fputc_unlocked on
Sparc-linux.
As I feared, there has not been much activity on the problem since you asked
me to revert the fix because of the performance regression detected on
PowerPC. Therefore I think we should definitively mark the bug as "Won't fix"
and close the PR. Do I have your approval for doing so?
--
Eric Botcazou