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* [Bug middle-end/57805] New: Waste work in write_roots()
@ 2013-07-03 16:44 pchang9 at cs dot wisc.edu
2013-07-03 20:18 ` [Bug middle-end/57805] Wasted " pchang9 at cs dot wisc.edu
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: pchang9 at cs dot wisc.edu @ 2013-07-03 16:44 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57805
Bug ID: 57805
Summary: Waste work in write_roots()
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: pchang9 at cs dot wisc.edu
CC: nistor1 at illinois dot edu
The problem appears in revision 200588 in version 4.9.
In method "write_roots()" in gcc/gengtype.c, the loop on line 4682 should break
immediately after "skip_p" is set to "1". All the iterations after "skip_p" set
to "1" do not perform any useful work, at best they just set "skip_p" again to
"1".
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug middle-end/57805] Wasted work in write_roots()
2013-07-03 16:44 [Bug middle-end/57805] New: Waste work in write_roots() pchang9 at cs dot wisc.edu
@ 2013-07-03 20:18 ` pchang9 at cs dot wisc.edu
2013-07-17 16:47 ` pchang9 at cs dot wisc.edu
2013-07-18 16:10 ` law at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: pchang9 at cs dot wisc.edu @ 2013-07-03 20:18 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57805
--- Comment #1 from Po-Chun Chang <pchang9 at cs dot wisc.edu> ---
Created attachment 30438
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30438&action=edit
Suggested patch
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug middle-end/57805] Wasted work in write_roots()
2013-07-03 16:44 [Bug middle-end/57805] New: Waste work in write_roots() pchang9 at cs dot wisc.edu
2013-07-03 20:18 ` [Bug middle-end/57805] Wasted " pchang9 at cs dot wisc.edu
@ 2013-07-17 16:47 ` pchang9 at cs dot wisc.edu
2013-07-18 16:10 ` law at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: pchang9 at cs dot wisc.edu @ 2013-07-17 16:47 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57805
--- Comment #2 from Po-Chun Chang <pchang9 at cs dot wisc.edu> ---
Patch sent to gcc-patches@:
http://gcc.gnu.org/ml/gcc-patches/2013-07/msg00661.html
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug middle-end/57805] Wasted work in write_roots()
2013-07-03 16:44 [Bug middle-end/57805] New: Waste work in write_roots() pchang9 at cs dot wisc.edu
2013-07-03 20:18 ` [Bug middle-end/57805] Wasted " pchang9 at cs dot wisc.edu
2013-07-17 16:47 ` pchang9 at cs dot wisc.edu
@ 2013-07-18 16:10 ` law at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: law at redhat dot com @ 2013-07-18 16:10 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57805
Jeffrey A. Law <law at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
CC| |law at redhat dot com
Resolution|--- |FIXED
--- Comment #3 from Jeffrey A. Law <law at redhat dot com> ---
Fixed on trunk.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-07-18 16:10 UTC | newest]
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2013-07-03 16:44 [Bug middle-end/57805] New: Waste work in write_roots() pchang9 at cs dot wisc.edu
2013-07-03 20:18 ` [Bug middle-end/57805] Wasted " pchang9 at cs dot wisc.edu
2013-07-17 16:47 ` pchang9 at cs dot wisc.edu
2013-07-18 16:10 ` law at redhat dot com
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