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* [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL)
@ 2005-02-16 4:08 pinskia at gcc dot gnu dot org
2005-02-16 4:10 ` [Bug middle-end/19986] " pinskia at gcc dot gnu dot org
` (13 more replies)
0 siblings, 14 replies; 18+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-02-16 4:08 UTC (permalink / raw)
To: gcc-bugs
Just a meta-bug for all the missing fold which are missing which are in the RTL version of simplify_*.
--
Summary: [meta-bug] fold missing optimizations (compared to RTL)
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Keywords: missed-optimization, meta-bug, TREE
Severity: enhancement
Priority: P2
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: pinskia at gcc dot gnu dot org
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
2005-02-16 4:08 [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL) pinskia at gcc dot gnu dot org
@ 2005-02-16 4:10 ` pinskia at gcc dot gnu dot org
2005-02-16 4:34 ` pinskia at gcc dot gnu dot org
` (12 subsequent siblings)
13 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-02-16 4:10 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-02-15 22:14 -------
Confirmed, there might be others which I had forgot.
--
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |14752, 14753, 14792, 14796,
| |14844, 15347, 15458, 17141,
| |19792
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2005-02-15 22:14:06
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
2005-02-16 4:08 [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL) pinskia at gcc dot gnu dot org
2005-02-16 4:10 ` [Bug middle-end/19986] " pinskia at gcc dot gnu dot org
@ 2005-02-16 4:34 ` pinskia at gcc dot gnu dot org
2005-03-04 2:55 ` phython at gcc dot gnu dot org
` (11 subsequent siblings)
13 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-02-16 4:34 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
OtherBugsDependingO| |19987
nThis| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
2005-02-16 4:08 [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL) pinskia at gcc dot gnu dot org
2005-02-16 4:10 ` [Bug middle-end/19986] " pinskia at gcc dot gnu dot org
2005-02-16 4:34 ` pinskia at gcc dot gnu dot org
@ 2005-03-04 2:55 ` phython at gcc dot gnu dot org
2005-03-04 6:26 ` pinskia at gcc dot gnu dot org
` (10 subsequent siblings)
13 siblings, 0 replies; 18+ messages in thread
From: phython at gcc dot gnu dot org @ 2005-03-04 2:55 UTC (permalink / raw)
To: gcc-bugs
--
Bug 19986 depends on bug 15784, which changed state.
Bug 15784 Summary: fold misses binary optimization
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15784
What |Old Value |New Value
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
2005-02-16 4:08 [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL) pinskia at gcc dot gnu dot org
` (2 preceding siblings ...)
2005-03-04 2:55 ` phython at gcc dot gnu dot org
@ 2005-03-04 6:26 ` pinskia at gcc dot gnu dot org
2005-03-11 5:03 ` phython at gcc dot gnu dot org
` (9 subsequent siblings)
13 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-03-04 6:26 UTC (permalink / raw)
To: gcc-bugs
--
Bug 19986 depends on bug 15784, which changed state.
Bug 15784 Summary: fold misses binary optimization
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15784
What |Old Value |New Value
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
2005-02-16 4:08 [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL) pinskia at gcc dot gnu dot org
` (3 preceding siblings ...)
2005-03-04 6:26 ` pinskia at gcc dot gnu dot org
@ 2005-03-11 5:03 ` phython at gcc dot gnu dot org
2005-03-11 5:04 ` phython at gcc dot gnu dot org
` (8 subsequent siblings)
13 siblings, 0 replies; 18+ messages in thread
From: phython at gcc dot gnu dot org @ 2005-03-11 5:03 UTC (permalink / raw)
To: gcc-bugs
--
Bug 19986 depends on bug 15784, which changed state.
Bug 15784 Summary: fold misses binary optimization
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15784
What |Old Value |New Value
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
2005-02-16 4:08 [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL) pinskia at gcc dot gnu dot org
` (4 preceding siblings ...)
2005-03-11 5:03 ` phython at gcc dot gnu dot org
@ 2005-03-11 5:04 ` phython at gcc dot gnu dot org
2005-04-18 15:20 ` phython at gcc dot gnu dot org
` (7 subsequent siblings)
13 siblings, 0 replies; 18+ messages in thread
From: phython at gcc dot gnu dot org @ 2005-03-11 5:04 UTC (permalink / raw)
To: gcc-bugs
--
Bug 19986 depends on bug 20130, which changed state.
Bug 20130 Summary: Fold a * -1 - 1 into ~a;
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20130
What |Old Value |New Value
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
2005-02-16 4:08 [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL) pinskia at gcc dot gnu dot org
` (5 preceding siblings ...)
2005-03-11 5:04 ` phython at gcc dot gnu dot org
@ 2005-04-18 15:20 ` phython at gcc dot gnu dot org
2005-04-20 17:32 ` pinskia at gcc dot gnu dot org
` (6 subsequent siblings)
13 siblings, 0 replies; 18+ messages in thread
From: phython at gcc dot gnu dot org @ 2005-04-18 15:20 UTC (permalink / raw)
To: gcc-bugs
--
Bug 19986 depends on bug 20922, which changed state.
Bug 20922 Summary: missed always false conditional
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20922
What |Old Value |New Value
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
2005-02-16 4:08 [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL) pinskia at gcc dot gnu dot org
` (6 preceding siblings ...)
2005-04-18 15:20 ` phython at gcc dot gnu dot org
@ 2005-04-20 17:32 ` pinskia at gcc dot gnu dot org
2005-04-23 21:36 ` rguenth at gcc dot gnu dot org
` (5 subsequent siblings)
13 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-04-20 17:32 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-04-20 17:32 -------
Some mentioned here: <http://gcc.gnu.org/wiki/Simplifications>.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
2005-02-16 4:08 [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL) pinskia at gcc dot gnu dot org
` (7 preceding siblings ...)
2005-04-20 17:32 ` pinskia at gcc dot gnu dot org
@ 2005-04-23 21:36 ` rguenth at gcc dot gnu dot org
2005-05-17 16:39 ` law at redhat dot com
` (4 subsequent siblings)
13 siblings, 0 replies; 18+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2005-04-23 21:36 UTC (permalink / raw)
To: gcc-bugs
--
Bug 19986 depends on bug 21082, which changed state.
Bug 21082 Summary: &a[b] - &a[c] is not folded to b - c
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21082
What |Old Value |New Value
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
2005-02-16 4:08 [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL) pinskia at gcc dot gnu dot org
` (8 preceding siblings ...)
2005-04-23 21:36 ` rguenth at gcc dot gnu dot org
@ 2005-05-17 16:39 ` law at redhat dot com
2005-06-13 0:27 ` phython at gcc dot gnu dot org
` (3 subsequent siblings)
13 siblings, 0 replies; 18+ messages in thread
From: law at redhat dot com @ 2005-05-17 16:39 UTC (permalink / raw)
To: gcc-bugs
--
Bug 19986 depends on bug 17141, which changed state.
Bug 17141 Summary: *&a->b is not folded
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17141
What |Old Value |New Value
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
2005-02-16 4:08 [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL) pinskia at gcc dot gnu dot org
` (9 preceding siblings ...)
2005-05-17 16:39 ` law at redhat dot com
@ 2005-06-13 0:27 ` phython at gcc dot gnu dot org
2005-08-09 3:06 ` pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
13 siblings, 0 replies; 18+ messages in thread
From: phython at gcc dot gnu dot org @ 2005-06-13 0:27 UTC (permalink / raw)
To: gcc-bugs
--
Bug 19986 depends on bug 14796, which changed state.
Bug 14796 Summary: [tree-ssa] combine two shifts into one
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14796
What |Old Value |New Value
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
2005-02-16 4:08 [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL) pinskia at gcc dot gnu dot org
` (10 preceding siblings ...)
2005-06-13 0:27 ` phython at gcc dot gnu dot org
@ 2005-08-09 3:06 ` pinskia at gcc dot gnu dot org
2005-09-01 2:15 ` pinskia at gcc dot gnu dot org
2005-09-01 2:27 ` pinskia at gcc dot gnu dot org
13 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-08-09 3:06 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |23294
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
2005-02-16 4:08 [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL) pinskia at gcc dot gnu dot org
` (11 preceding siblings ...)
2005-08-09 3:06 ` pinskia at gcc dot gnu dot org
@ 2005-09-01 2:15 ` pinskia at gcc dot gnu dot org
2005-09-01 2:27 ` pinskia at gcc dot gnu dot org
13 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-09-01 2:15 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |23670
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
2005-02-16 4:08 [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL) pinskia at gcc dot gnu dot org
` (12 preceding siblings ...)
2005-09-01 2:15 ` pinskia at gcc dot gnu dot org
@ 2005-09-01 2:27 ` pinskia at gcc dot gnu dot org
13 siblings, 0 replies; 18+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-09-01 2:27 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |23672
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
[not found] <bug-19986-4@http.gcc.gnu.org/bugzilla/>
2021-06-27 23:26 ` roger at nextmovesoftware dot com
@ 2023-04-22 8:06 ` roger at nextmovesoftware dot com
1 sibling, 0 replies; 18+ messages in thread
From: roger at nextmovesoftware dot com @ 2023-04-22 8:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
Bug 19986 depends on bug 25186, which changed state.
Bug 25186 Summary: (short)(((int)short_var) <<1) should be folded so that the shift is done in the short type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25186
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
[not found] <bug-19986-4@http.gcc.gnu.org/bugzilla/>
@ 2021-06-27 23:26 ` roger at nextmovesoftware dot com
2023-04-22 8:06 ` roger at nextmovesoftware dot com
1 sibling, 0 replies; 18+ messages in thread
From: roger at nextmovesoftware dot com @ 2021-06-27 23:26 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
Bug 19986 depends on bug 20517, which changed state.
Bug 20517 Summary: bit shift/mask optimization potential
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=20517
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 18+ messages in thread
* [Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)
[not found] <bug-19986-6528@http.gcc.gnu.org/bugzilla/>
@ 2006-01-02 19:37 ` bonzini at gnu dot org
0 siblings, 0 replies; 18+ messages in thread
From: bonzini at gnu dot org @ 2006-01-02 19:37 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from bonzini at gnu dot org 2006-01-02 19:37 -------
Just for the record, I'm not sure about how much it is worth to have fold
perform all the various sorts of shift/and simplifications that combine can do.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986
^ permalink raw reply [flat|nested] 18+ messages in thread
end of thread, other threads:[~2023-04-22 8:06 UTC | newest]
Thread overview: 18+ messages (download: mbox.gz / follow: Atom feed)
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2005-02-16 4:08 [Bug middle-end/19986] New: [meta-bug] fold missing optimizations (compared to RTL) pinskia at gcc dot gnu dot org
2005-02-16 4:10 ` [Bug middle-end/19986] " pinskia at gcc dot gnu dot org
2005-02-16 4:34 ` pinskia at gcc dot gnu dot org
2005-03-04 2:55 ` phython at gcc dot gnu dot org
2005-03-04 6:26 ` pinskia at gcc dot gnu dot org
2005-03-11 5:03 ` phython at gcc dot gnu dot org
2005-03-11 5:04 ` phython at gcc dot gnu dot org
2005-04-18 15:20 ` phython at gcc dot gnu dot org
2005-04-20 17:32 ` pinskia at gcc dot gnu dot org
2005-04-23 21:36 ` rguenth at gcc dot gnu dot org
2005-05-17 16:39 ` law at redhat dot com
2005-06-13 0:27 ` phython at gcc dot gnu dot org
2005-08-09 3:06 ` pinskia at gcc dot gnu dot org
2005-09-01 2:15 ` pinskia at gcc dot gnu dot org
2005-09-01 2:27 ` pinskia at gcc dot gnu dot org
[not found] <bug-19986-6528@http.gcc.gnu.org/bugzilla/>
2006-01-02 19:37 ` bonzini at gnu dot org
[not found] <bug-19986-4@http.gcc.gnu.org/bugzilla/>
2021-06-27 23:26 ` roger at nextmovesoftware dot com
2023-04-22 8:06 ` roger at nextmovesoftware dot com
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