https://gcc.gnu.org/bugzilla/show_bug.cgi?id=27090
Bug 27090 depends on bug 15459, which changed state.
Bug 15459 Summary: [meta-bug] there should be a tree combiner like the rtl one
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=15459
What|Removed |Added
--- Comment #12 from rguenth at gcc dot gnu dot org 2006-06-19 20:10
---
Subject: Bug 27090
Author: rguenth
Date: Mon Jun 19 20:10:02 2006
New Revision: 114786
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=114786
Log:
2006-06-19 Richard Guenther [EMAIL PROTECTED]
PR
--- Comment #10 from rguenth at gcc dot gnu dot org 2006-05-04 13:57
---
Subject: Bug 27090
Author: rguenth
Date: Thu May 4 13:56:52 2006
New Revision: 113527
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=113527
Log:
2006-05-04 Richard Guenther [EMAIL PROTECTED]
PR
--- Comment #11 from rguenth at gcc dot gnu dot org 2006-05-04 15:01
---
Testcase in comment #4 is fixed, for the original testcase the folding
missed-optimization still holds. But that's for another bug.
Fixed.
--
rguenth at gcc dot gnu dot org changed:
What
--- Comment #9 from rguenth at gcc dot gnu dot org 2006-04-21 14:46 ---
Hm, fold_unary does not fold
(struct FooD.1993 *)(struct BarFooD.1994 *) f
where f is of type (struct FooD.1993 ). Oh well.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27090
--- Comment #7 from rguenth at gcc dot gnu dot org 2006-04-20 13:52 ---
I have a patch to teach GVN tree-combining.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27090
--- Comment #8 from rguenth at gcc dot gnu dot org 2006-04-20 13:54 ---
Which, for the testcase in comment #4 gives us
;; Function f (f)
Created value VH.0 for a_1
Created value VH.1 for *VH.0 vuses: (SMT.4_8)
Created value VH.2 for (unsigned int *) VH.0
Created value VH.3 for (int *)
--
pinskia at gcc dot gnu dot org changed:
What|Removed |Added
CC||pinskia at gcc dot gnu dot
|
--- Comment #5 from pinskia at gcc dot gnu dot org 2006-04-11 01:21 ---
Just a note VN.2 should really have not been created (maybe there is no way
around this because it is just equivalant to VN.0). This actually gets fixed
by a real tree combiner since fold is able to fix up
--- Comment #6 from pinskia at gcc dot gnu dot org 2006-04-11 01:33 ---
So I talked to Daniel about this and he said a new Number value system or the
tree combiner so basicially there is nothing can be done currently. Guess
maybe it is time for you Richard to stop hacking on fowardprop
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