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* [Bug middle-end/27896] lower-gimple produces extra goto for once return functions
[not found] <bug-27896-4@http.gcc.gnu.org/bugzilla/>
@ 2021-12-23 5:28 ` pinskia at gcc dot gnu.org
2024-02-20 11:59 ` rguenth at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-12-23 5:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=27896
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2008-12-07 00:46:46 |2021-12-22
Severity|normal |enhancement
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug middle-end/27896] lower-gimple produces extra goto for once return functions
[not found] <bug-27896-4@http.gcc.gnu.org/bugzilla/>
2021-12-23 5:28 ` [Bug middle-end/27896] lower-gimple produces extra goto for once return functions pinskia at gcc dot gnu.org
@ 2024-02-20 11:59 ` rguenth at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: rguenth at gcc dot gnu.org @ 2024-02-20 11:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=27896
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|NEW |RESOLVED
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
This is now producing
int foo ()
{
int D.2772;
D.2772 = 1;
return D.2772;
}
the temporary is produced by return gimplification (RETURN_EXPR have an
embedded MODIFY_EXPR).
I'll call the original issue fixed, the temporary is a design decision.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug middle-end/27896] lower-gimple produces extra goto for once return functions
2006-06-05 7:10 [Bug tree-optimization/27896] New: inefficient lowering for return dann at godzilla dot ics dot uci dot edu
@ 2010-02-24 16:34 ` steven at gcc dot gnu dot org
0 siblings, 0 replies; 3+ messages in thread
From: steven at gcc dot gnu dot org @ 2010-02-24 16:34 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from steven at gcc dot gnu dot org 2010-02-24 16:34 -------
Still a problem, actually worse now than before (.009t.lower dump at r156926):
;; Function foo (foo)
foo ()
{
int D.1974;
D.1974 = 1;
goto <D.1975>;
<D.1975>:
return D.1974;
}
The decomposition of "return 1" shows up already in the "004t.gimple" dump.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27896
^ permalink raw reply [flat|nested] 3+ messages in thread
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[not found] <bug-27896-4@http.gcc.gnu.org/bugzilla/>
2021-12-23 5:28 ` [Bug middle-end/27896] lower-gimple produces extra goto for once return functions pinskia at gcc dot gnu.org
2024-02-20 11:59 ` rguenth at gcc dot gnu.org
2006-06-05 7:10 [Bug tree-optimization/27896] New: inefficient lowering for return dann at godzilla dot ics dot uci dot edu
2010-02-24 16:34 ` [Bug middle-end/27896] lower-gimple produces extra goto for once return functions steven at gcc dot gnu dot org
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