This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/21829] [4.1/4.2 Regression] missed jump threading after unroller
- From: "law at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 21 Mar 2006 05:10:52 -0000
- Subject: [Bug tree-optimization/21829] [4.1/4.2 Regression] missed jump threading after unroller
- References: <bug-21829-6528@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #8 from law at redhat dot com 2006-03-21 05:10 -------
Today's patch picks up the missed const-propagation and allows
simplification of the modulo operation.
THere's still the opportunitity to use range information to simplify
a conditional. However, fixing that is just basically iterating
VRP in response to CFG changes -- not something we're going to
do as it's simply too expensive.
Thus I'm changing the state of this bug to WONTFIX.
--
law at redhat dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |WONTFIX
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21829