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[Bug tree-optimization/19701] [4.0 regression] Way too many IVs
- 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: 30 Jan 2005 01:08:24 -0000
- Subject: [Bug tree-optimization/19701] [4.0 regression] Way too many IVs
- References: <20050130004850.19701.falk@debian.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-30 01:08 -------
Confirmed, also happens on powerpc-darwin (This might be the one of the reasons why SPEC is slower
on the mainline on some tests with -fivopts turned on).
Yes this is one of the few true iv-opts problems. -fno-ivopts fixes the problem, I will attach the tree
dumps for PPC soon.
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |minor
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
GCC build triplet|alphaev68-unknown-linux-gnu |
GCC host triplet|alphaev68-unknown-linux-gnu |
GCC target triplet|alphaev68-unknown-linux-gnu |alpha*-*-*, powerpc*-*-*
Keywords| |missed-optimization
Last reconfirmed|0000-00-00 00:00:00 |2005-01-30 01:08:22
date| |
Target Milestone|--- |4.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19701