[Bug tree-optimization/25809] missed PRE optimization - move invariant casts out of loops
--- Comment #8 from dorit at il dot ibm dot com 2007-05-09 07:14 --- So I guess this should be handled somewhere else. I'll open a new missed-optimization PR instead (not against PRE this time). thanks. This is now PR31873 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25809
[Bug tree-optimization/25809] missed PRE optimization - move invariant casts out of loops
--- Comment #5 from dorit at il dot ibm dot com 2007-04-17 07:22 --- Doing cast motion actually causes about 25 *more* failures in the vectorizer testsuite. I'm closing this as won't fix since it seems there was no other reason to do this. can you please send me the patch so that I could look at this failures before you close this PR? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25809
[Bug tree-optimization/25809] missed PRE optimization - move invariant casts out of loops
--- Comment #6 from dorit at il dot ibm dot com 2007-04-17 07:38 --- can you please send me the patch so that I could look at this failures before you close this PR? I'm going over my inbox top down, so I just saw that you had laready sent the patch... so I will look into it. (thanks!) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25809
[Bug tree-optimization/25809] missed PRE optimization - move invariant casts out of loops
--- Comment #7 from dorit at il dot ibm dot com 2007-04-17 19:31 --- so I will look into it. (for reference: http://gcc.gnu.org/ml/gcc-patches/2007-04/msg01103.html). So I guess this should be handled somewhere else. I'll open a new missed-optimization PR instead (not against PRE this time). thanks. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25809
[Bug tree-optimization/25809] missed PRE optimization - move invariant casts out of loops
--- Comment #4 from dberlin at gcc dot gnu dot org 2007-04-16 19:14 --- Doing cast motion actually causes about 25 *more* failures in the vectorizer testsuite. I'm closing this as won't fix since it seems there was no other reason to do this. -- dberlin at gcc dot gnu dot org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution||WONTFIX http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25809
[Bug tree-optimization/25809] missed PRE optimization - move invariant casts out of loops
--- Comment #3 from dberlin at gcc dot gnu dot org 2007-04-16 03:12 --- PRE actually would perform the optimization on these two cases, but it sees the cast as an induction variable. Found partial redundancy for expression (short unsigned int) VH.29 (VH.37) Skipping insertion of phi for partial redundancy: Looks like an induction variable I will change it to decide that only binary expressions are induction variables, for the moment. -- dberlin at gcc dot gnu dot org changed: What|Removed |Added AssignedTo|unassigned at gcc dot gnu |dberlin at gcc dot gnu dot |dot org |org Status|NEW |ASSIGNED Last reconfirmed|2006-01-17 11:47:14 |2007-04-16 03:12:10 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25809
[Bug tree-optimization/25809] missed PRE optimization - move invariant casts out of loops
--- Comment #1 from rguenth at gcc dot gnu dot org 2006-01-17 11:47 --- Confirmed. LIM could do it also, and it looks like its a full redundancy even. -- rguenth at gcc dot gnu dot org changed: What|Removed |Added Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|-00-00 00:00:00 |2006-01-17 11:47:14 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25809
[Bug tree-optimization/25809] missed PRE optimization - move invariant casts out of loops
--- Comment #2 from dberlin at gcc dot gnu dot org 2006-01-17 14:27 --- Subject: Re: missed PRE optimization - move invariant casts out of loops rguenth at gcc dot gnu dot org wrote: --- Comment #1 from rguenth at gcc dot gnu dot org 2006-01-17 11:47 --- Confirmed. LIM could do it also, and it looks like its a full redundancy even. Well, PRE certainly can't sink the one assignment out the bottom, but it should be able to move the one to the top :) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25809
