https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #16 from Jakub Jelinek jakub at gcc dot gnu.org ---
So, I had a brief look at the #c14 issues.
--- gcc/match.pd.jj2015-01-05 13:07:14.0 +0100
+++ gcc/match.pd2015-01-16 16:27:08.053817209 +0100
@@ -614,6 +614,16 @@
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #17 from Jakub Jelinek jakub at gcc dot gnu.org ---
Or try to deal with this in combine. We have:
(insn 91 90 92 18 (parallel [
(set (reg:DI 149 [ D.1943 ])
(and:DI (reg:DI 147 [ D.1943 ])
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #13 from Jakub Jelinek jakub at gcc dot gnu.org ---
Author: jakub
Date: Fri Oct 17 10:54:54 2014
New Revision: 216393
URL: https://gcc.gnu.org/viewcvs?rev=216393root=gccview=rev
Log:
PR tree-optimization/63464
* gimple.h
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
Jakub Jelinek jakub at gcc dot gnu.org changed:
What|Removed |Added
CC||uros at gcc dot
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #15 from Uroš Bizjak ubizjak at gmail dot com ---
(In reply to Jakub Jelinek from comment #14)
So, supposedly there is something we want to match-and-simplify, perhaps
also something we want to simplify at the RTL level, and check
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #12 from Jakub Jelinek jakub at gcc dot gnu.org ---
Created attachment 33724
-- https://gcc.gnu.org/bugzilla/attachment.cgi?id=33724action=edit
gcc5-pr63464.patch
Untested patch.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #11 from rguenther at suse dot de rguenther at suse dot de ---
On Mon, 13 Oct 2014, jakub at gcc dot gnu.org wrote:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #9 from Jakub Jelinek jakub at gcc dot gnu.org ---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #9 from Jakub Jelinek jakub at gcc dot gnu.org ---
Created attachment 33697
-- https://gcc.gnu.org/bugzilla/attachment.cgi?id=33697action=edit
gcc5-pr63464.patch
WIP patch. What is missing:
1) the optimize_range_tests_to_bit_test
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #10 from Jakub Jelinek jakub at gcc dot gnu.org ---
Created attachment 33698
-- https://gcc.gnu.org/bugzilla/attachment.cgi?id=33698action=edit
bittest.c
Testcase I've been playing with.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #8 from Jakub Jelinek jakub at gcc dot gnu.org ---
Author: jakub
Date: Fri Oct 10 12:15:30 2014
New Revision: 216072
URL: https://gcc.gnu.org/viewcvs?rev=216072root=gccview=rev
Log:
PR tree-optimization/63464
*
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #4 from Jakub Jelinek jakub at gcc dot gnu.org ---
Created attachment 33658
-- https://gcc.gnu.org/bugzilla/attachment.cgi?id=33658action=edit
gcc5-pr63464.patch
Updated patch for the switchconv, this time checking rtx costs.
As
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #5 from rguenther at suse dot de rguenther at suse dot de ---
On Tue, 7 Oct 2014, jakub at gcc dot gnu.org wrote:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #4 from Jakub Jelinek jakub at gcc dot gnu.org ---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #6 from Marc Glisse glisse at gcc dot gnu.org ---
(In reply to Jakub Jelinek from comment #1)
We have this optimization implemented for switches,
Thanks, that's indeed the most natural place for it, although I hadn't thought
of
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #7 from Marc Glisse glisse at gcc dot gnu.org ---
The SLP version is slightly slower than the bit test in this case (at least on
my old desktop), but it can more easily handle testing for characters that are
not within 64 of each
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
Jakub Jelinek jakub at gcc dot gnu.org changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #2 from rguenther at suse dot de rguenther at suse dot de ---
On Mon, 6 Oct 2014, jakub at gcc dot gnu.org wrote:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
Jakub Jelinek jakub at gcc dot gnu.org changed:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63464
--- Comment #3 from Jakub Jelinek jakub at gcc dot gnu.org ---
Created attachment 33654
-- https://gcc.gnu.org/bugzilla/attachment.cgi?id=33654action=edit
gcc5-pr63464.patch
Untested patch to avoid the subtraction of info.range_min from index.
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