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[Bug tree-optimization/81703] memcpy folding defeats strlen optimization
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 04 Aug 2017 07:56:00 +0000
- Subject: [Bug tree-optimization/81703] memcpy folding defeats strlen optimization
- Auto-submitted: auto-generated
- References: <bug-81703-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81703
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-08-04
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I think there's a duplicate of this bug. Note the user could have written the
code in the same way as the folding produces so a) is the only real fix.