[Bug tree-optimization/63169] ivopts rewrite_uses pessimizes debug info

2016-03-15 Thread amodra at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63169 Alan Modra changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug tree-optimization/63169] ivopts rewrite_uses pessimizes debug info

2014-09-04 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63169 --- Comment #1 from Richard Biener --- IVOPTs depends on CSE to remove the effect of building its (sometimes gigantic) GENERIC expressions figuring out IVs and inserting them multiple times. Not sure if we even try to optimize the IV chosen to r