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[Bug middle-end/38856] loop iv detection failure
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 15 Jan 2009 21:13:04 -0000
- Subject: [Bug middle-end/38856] loop iv detection failure
- References: <bug-38856-17190@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from pinskia at gcc dot gnu dot org 2009-01-15 21:13 -------
This bug is a bit funny, autoincrement is not the issue, just the detecting of
the induction variable's limits correctly. For an example I noticed that if I
compile this on a LP64 target, the induction variable is found correctly.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|c |middle-end
Keywords| |missed-optimization
Summary|loop iv detection failure, |loop iv detection failure
|SSA autoincrement |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38856