https://gcc.gnu.org/bugzilla/show_bug.cgi?id=37516
Andrew Pinski changed:
What|Removed |Added
Target Milestone|--- |11.0
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=37516
--- Comment #7 from Richard Biener ---
A match.pd rule should be reasonably easy to write. Beware that ~a is not
undefined but -a - 1 might be if it overflows. That is
(simplify
(bit_not (minus INTEGER_CST@0 @1))
(plus @1 (minus (negate
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37516
--- Comment #6 from Andrew Pinski pinskia at gcc dot gnu.org 2012-02-26
00:49:54 UTC ---
(In reply to comment #5)
I think def scanning is ok, but all SSA names should be valueized via
a hook first.
I wrote up something quickly (but I want to
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37516
--- Comment #5 from rguenther at suse dot de rguenther at suse dot de
2012-02-24 08:38:19 UTC ---
On Thu, 23 Feb 2012, pinskia at gcc dot gnu.org wrote:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37516
--- Comment #4 from Andrew Pinski
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37516
Andrew Pinski pinskia at gcc dot gnu.org changed:
What|Removed |Added
Status|UNCONFIRMED |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37516
--- Comment #3 from rguenther at suse dot de rguenther at suse dot de
2012-02-23 08:47:55 UTC ---
On Thu, 23 Feb 2012, pinskia at gcc dot gnu.org wrote:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37516
Andrew Pinski pinskia at gcc dot
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37516
--- Comment #4 from Andrew Pinski pinskia at gcc dot gnu.org 2012-02-23
22:15:05 UTC ---
Maybe get away with these old-stylish names ('tree' and 'fold') and
make it match reality, gimple-ssa-combine.c ;)
That sounds like a good idea. I have
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pinskia at gcc dot gnu dot org changed:
What|Removed |Added
Severity|normal |enhancement
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37516
--- Comment #1 from pinskia at gcc dot gnu dot org 2008-09-14 04:56 ---
That is I found this with the patch for PR 37451 included but this does not
need that patch to show the issue really.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37516
