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* [Bug c/35872] [4.1 regression] incorrect code for 32bit multiplication by constant
2008-04-08 16:12 [Bug c/35872] New: [4.1 regression] incorrect code for 32bit multiplication by constant a dot kaiser at gmx dot net
@ 2008-04-08 16:12 ` a dot kaiser at gmx dot net
2008-04-08 16:13 ` a dot kaiser at gmx dot net
` (7 subsequent siblings)
8 siblings, 0 replies; 11+ messages in thread
From: a dot kaiser at gmx dot net @ 2008-04-08 16:12 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from a dot kaiser at gmx dot net 2008-04-08 16:12 -------
Created an attachment (id=15447)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15447&action=view)
testcase
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35872
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c/35872] New: [4.1 regression] incorrect code for 32bit multiplication by constant
@ 2008-04-08 16:12 a dot kaiser at gmx dot net
2008-04-08 16:12 ` [Bug c/35872] " a dot kaiser at gmx dot net
` (8 more replies)
0 siblings, 9 replies; 11+ messages in thread
From: a dot kaiser at gmx dot net @ 2008-04-08 16:12 UTC (permalink / raw)
To: gcc-bugs
A 32bit multiplication by a constant results in incorrect code when compiled
for some AVR models (probably those having a hardware multiplier).
Command:
avr-gcc -mmcu=attiny25 -Os -S t1.c (correct)
avr-gcc -mmcu=atmega16 -Os -S t1.c (incorrect)
--
Summary: [4.1 regression] incorrect code for 32bit multiplication
by constant
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: a dot kaiser at gmx dot net
GCC host triplet: winavr 20040802
GCC target triplet: avr
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35872
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c/35872] [4.1 regression] incorrect code for 32bit multiplication by constant
2008-04-08 16:12 [Bug c/35872] New: [4.1 regression] incorrect code for 32bit multiplication by constant a dot kaiser at gmx dot net
2008-04-08 16:12 ` [Bug c/35872] " a dot kaiser at gmx dot net
2008-04-08 16:13 ` a dot kaiser at gmx dot net
@ 2008-04-08 16:13 ` a dot kaiser at gmx dot net
2008-04-08 18:07 ` [Bug target/35872] [4.3 " eric dot weddington at atmel dot com
` (5 subsequent siblings)
8 siblings, 0 replies; 11+ messages in thread
From: a dot kaiser at gmx dot net @ 2008-04-08 16:13 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from a dot kaiser at gmx dot net 2008-04-08 16:12 -------
Created an attachment (id=15448)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15448&action=view)
assembly output for tiny25
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35872
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c/35872] [4.1 regression] incorrect code for 32bit multiplication by constant
2008-04-08 16:12 [Bug c/35872] New: [4.1 regression] incorrect code for 32bit multiplication by constant a dot kaiser at gmx dot net
2008-04-08 16:12 ` [Bug c/35872] " a dot kaiser at gmx dot net
@ 2008-04-08 16:13 ` a dot kaiser at gmx dot net
2008-04-08 16:13 ` a dot kaiser at gmx dot net
` (6 subsequent siblings)
8 siblings, 0 replies; 11+ messages in thread
From: a dot kaiser at gmx dot net @ 2008-04-08 16:13 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from a dot kaiser at gmx dot net 2008-04-08 16:13 -------
Created an attachment (id=15449)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15449&action=view)
assembly output for mega16
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35872
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/35872] [4.3 regression] incorrect code for 32bit multiplication by constant
2008-04-08 16:12 [Bug c/35872] New: [4.1 regression] incorrect code for 32bit multiplication by constant a dot kaiser at gmx dot net
` (2 preceding siblings ...)
2008-04-08 16:13 ` a dot kaiser at gmx dot net
@ 2008-04-08 18:07 ` eric dot weddington at atmel dot com
2008-04-08 18:16 ` eric dot weddington at atmel dot com
` (4 subsequent siblings)
8 siblings, 0 replies; 11+ messages in thread
From: eric dot weddington at atmel dot com @ 2008-04-08 18:07 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from eric dot weddington at atmel dot com 2008-04-08 18:06 -------
Works for 4.2.2 (WinAVR 20071221)
--
eric dot weddington at atmel dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work|4.1.2 |4.1.2 4.2.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35872
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/35872] [4.3 regression] incorrect code for 32bit multiplication by constant
2008-04-08 16:12 [Bug c/35872] New: [4.1 regression] incorrect code for 32bit multiplication by constant a dot kaiser at gmx dot net
` (3 preceding siblings ...)
2008-04-08 18:07 ` [Bug target/35872] [4.3 " eric dot weddington at atmel dot com
@ 2008-04-08 18:16 ` eric dot weddington at atmel dot com
2008-04-08 20:18 ` rguenth at gcc dot gnu dot org
` (3 subsequent siblings)
8 siblings, 0 replies; 11+ messages in thread
From: eric dot weddington at atmel dot com @ 2008-04-08 18:16 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from eric dot weddington at atmel dot com 2008-04-08 18:16 -------
Confirmed on WinAVR 20080407 (gcc 4.3.0 plus patches).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35872
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/35872] [4.3 regression] incorrect code for 32bit multiplication by constant
2008-04-08 16:12 [Bug c/35872] New: [4.1 regression] incorrect code for 32bit multiplication by constant a dot kaiser at gmx dot net
` (4 preceding siblings ...)
2008-04-08 18:16 ` eric dot weddington at atmel dot com
@ 2008-04-08 20:18 ` rguenth at gcc dot gnu dot org
2008-04-08 20:39 ` eric dot weddington at atmel dot com
` (2 subsequent siblings)
8 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2008-04-08 20:18 UTC (permalink / raw)
To: gcc-bugs
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Keywords| |wrong-code
Priority|P3 |P4
Last reconfirmed|0000-00-00 00:00:00 |2008-04-08 20:17:37
date| |
Target Milestone|--- |4.3.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35872
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/35872] [4.3 regression] incorrect code for 32bit multiplication by constant
2008-04-08 16:12 [Bug c/35872] New: [4.1 regression] incorrect code for 32bit multiplication by constant a dot kaiser at gmx dot net
` (5 preceding siblings ...)
2008-04-08 20:18 ` rguenth at gcc dot gnu dot org
@ 2008-04-08 20:39 ` eric dot weddington at atmel dot com
2008-04-12 15:28 ` hutchinsonandy at gcc dot gnu dot org
2008-05-26 20:25 ` eric dot weddington at atmel dot com
8 siblings, 0 replies; 11+ messages in thread
From: eric dot weddington at atmel dot com @ 2008-04-08 20:39 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from eric dot weddington at atmel dot com 2008-04-08 20:38 -------
Andy's combine.c patch for bug #35519 fixes this bug. This means that 4.3.0 is
useless for the avr port until that patch is backported.
--
eric dot weddington at atmel dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |35519
Severity|normal |major
Priority|P4 |P3
Target Milestone|4.3.1 |---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35872
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/35872] [4.3 regression] incorrect code for 32bit multiplication by constant
2008-04-08 16:12 [Bug c/35872] New: [4.1 regression] incorrect code for 32bit multiplication by constant a dot kaiser at gmx dot net
` (6 preceding siblings ...)
2008-04-08 20:39 ` eric dot weddington at atmel dot com
@ 2008-04-12 15:28 ` hutchinsonandy at gcc dot gnu dot org
2008-05-26 20:25 ` eric dot weddington at atmel dot com
8 siblings, 0 replies; 11+ messages in thread
From: hutchinsonandy at gcc dot gnu dot org @ 2008-04-12 15:28 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from hutchinsonandy at gcc dot gnu dot org 2008-04-12 15:28 -------
Fixed 4.3 and 4.4
--
hutchinsonandy at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35872
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/35872] [4.3 regression] incorrect code for 32bit multiplication by constant
2008-04-08 16:12 [Bug c/35872] New: [4.1 regression] incorrect code for 32bit multiplication by constant a dot kaiser at gmx dot net
` (7 preceding siblings ...)
2008-04-12 15:28 ` hutchinsonandy at gcc dot gnu dot org
@ 2008-05-26 20:25 ` eric dot weddington at atmel dot com
8 siblings, 0 replies; 11+ messages in thread
From: eric dot weddington at atmel dot com @ 2008-05-26 20:25 UTC (permalink / raw)
To: gcc-bugs
--
eric dot weddington at atmel dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.3.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35872
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/35872] [4.3 regression] incorrect code for 32bit multiplication by constant
[not found] <bug-35872-4@http.gcc.gnu.org/bugzilla/>
@ 2014-02-16 13:16 ` jackie.rosen at hushmail dot com
0 siblings, 0 replies; 11+ messages in thread
From: jackie.rosen at hushmail dot com @ 2014-02-16 13:16 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35872
Jackie Rosen <jackie.rosen at hushmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jackie.rosen at hushmail dot com
--- Comment #8 from Jackie Rosen <jackie.rosen at hushmail dot com> ---
*** Bug 260998 has been marked as a duplicate of this bug. ***
Seen from the domain http://volichat.com
Page where seen: http://volichat.com/adult-chat-rooms
Marked for reference. Resolved as fixed @bugzilla.
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2014-02-16 13:16 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
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2008-04-08 16:12 [Bug c/35872] New: [4.1 regression] incorrect code for 32bit multiplication by constant a dot kaiser at gmx dot net
2008-04-08 16:12 ` [Bug c/35872] " a dot kaiser at gmx dot net
2008-04-08 16:13 ` a dot kaiser at gmx dot net
2008-04-08 16:13 ` a dot kaiser at gmx dot net
2008-04-08 18:07 ` [Bug target/35872] [4.3 " eric dot weddington at atmel dot com
2008-04-08 18:16 ` eric dot weddington at atmel dot com
2008-04-08 20:18 ` rguenth at gcc dot gnu dot org
2008-04-08 20:39 ` eric dot weddington at atmel dot com
2008-04-12 15:28 ` hutchinsonandy at gcc dot gnu dot org
2008-05-26 20:25 ` eric dot weddington at atmel dot com
[not found] <bug-35872-4@http.gcc.gnu.org/bugzilla/>
2014-02-16 13:16 ` jackie.rosen at hushmail dot com
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