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[Bug target/40499] [missed optimization] branch to return
- From: "steven at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 20 Jun 2009 05:56:59 -0000
- Subject: [Bug target/40499] [missed optimization] branch to return
- References: <bug-40499-17659@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from steven at gcc dot gnu dot org 2009-06-20 05:56 -------
There is an optimization that does this (thread prologue/epilogue insns) but it
is not always a profitable transformation, see e.g. PR40361.
You should analyze why this transformation doesn't happen for your case.
But next time, please explain also why you think this is a bug. (This applies
to all your bug reports, which are, I'm sorry to say, not very good in
general.) E.g. does code size decrease if the jump is replaced with a return?
--
steven at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40499