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* [Bug middle-end/53776] New: pragma optimize does not support Os
@ 2012-06-26 8:15 vincenzo.innocente at cern dot ch
2012-06-26 8:43 ` [Bug middle-end/53776] " pinskia at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: vincenzo.innocente at cern dot ch @ 2012-06-26 8:15 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53776
Bug #: 53776
Summary: pragma optimize does not support Os
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: vincenzo.innocente@cern.ch
I need to compile optimized for size some portion of code.
The easiest is to "inject" pragmas in the source code at building time
unfortunately Os (and I think also Ofast) are not supported in
pragma optimize (and I think also not by __attribute__)
only numbers works
for instance take
cat optopt.cc
#pragma GCC optimize ("s")
void bar(int);
inline void foo(int i, int j) {
if (i>0) bar(i);
if (j>0) bar(j);
if (i>0) bar(j);
if (j>0) bar(i);
};
void foo1(int i, int j) {
foo(i,j);
}
void foo2(int i, int j) {
foo(i,j);
}
void foo3(int i, int j) {
foo(i,j);
}
c++ -O2 -c optopt.cc; nm -C optopt.o
U bar(int)
0000000000000000 T foo1(int, int)
0000000000000060 T foo2(int, int)
00000000000000c0 T foo3(int, int)
c++ -Os -c optopt.cc; nm -C optopt.o
U bar(int)
0000000000000000 W foo(int, int)
0000000000000000 T foo1(int, int)
0000000000000005 T foo2(int, int)
000000000000000a T foo3(int, int)
with
#pragma GCC optimize ("1")
one gets what intended
c++ -O2 -c optopt.cc; nm -C optopt.o
U bar(int)
0000000000000000 W foo(int, int)
0000000000000000 T foo1(int, int)
0000000000000010 T foo2(int, int)
0000000000000020 T foo3(int, int)
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug middle-end/53776] pragma optimize does not support Os 2012-06-26 8:15 [Bug middle-end/53776] New: pragma optimize does not support Os vincenzo.innocente at cern dot ch @ 2012-06-26 8:43 ` pinskia at gcc dot gnu.org 2012-06-26 8:58 ` rguenth at gcc dot gnu.org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu.org @ 2012-06-26 8:43 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53776 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-06-26 08:43:36 UTC --- Ofast is recorded as PR 48110. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/53776] pragma optimize does not support Os 2012-06-26 8:15 [Bug middle-end/53776] New: pragma optimize does not support Os vincenzo.innocente at cern dot ch 2012-06-26 8:43 ` [Bug middle-end/53776] " pinskia at gcc dot gnu.org @ 2012-06-26 8:58 ` rguenth at gcc dot gnu.org 2021-08-12 5:41 ` pinskia at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu.org @ 2012-06-26 8:58 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53776 Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2012-06-26 Blocks| |48110 Ever Confirmed|0 |1 --- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-06-26 08:57:52 UTC --- Confirmed. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/53776] pragma optimize does not support Os 2012-06-26 8:15 [Bug middle-end/53776] New: pragma optimize does not support Os vincenzo.innocente at cern dot ch 2012-06-26 8:43 ` [Bug middle-end/53776] " pinskia at gcc dot gnu.org 2012-06-26 8:58 ` rguenth at gcc dot gnu.org @ 2021-08-12 5:41 ` pinskia at gcc dot gnu.org 2021-11-29 6:47 ` pinskia at gcc dot gnu.org 2021-12-23 4:11 ` [Bug ipa/53776] " pinskia at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu.org @ 2021-08-12 5:41 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53776 --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Looks fully fixed since GCC 8.1.0. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/53776] pragma optimize does not support Os 2012-06-26 8:15 [Bug middle-end/53776] New: pragma optimize does not support Os vincenzo.innocente at cern dot ch ` (2 preceding siblings ...) 2021-08-12 5:41 ` pinskia at gcc dot gnu.org @ 2021-11-29 6:47 ` pinskia at gcc dot gnu.org 2021-12-23 4:11 ` [Bug ipa/53776] " pinskia at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu.org @ 2021-11-29 6:47 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53776 Bug 53776 depends on bug 37565, which changed state. Bug 37565 Summary: __optimize__ attribute doesn't work correctly https://gcc.gnu.org/bugzilla/show_bug.cgi?id=37565 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug ipa/53776] pragma optimize does not support Os 2012-06-26 8:15 [Bug middle-end/53776] New: pragma optimize does not support Os vincenzo.innocente at cern dot ch ` (3 preceding siblings ...) 2021-11-29 6:47 ` pinskia at gcc dot gnu.org @ 2021-12-23 4:11 ` pinskia at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu.org @ 2021-12-23 4:11 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53776 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to work| |5.1.0, 8.1.0 Target Milestone|--- |8.0 Component|middle-end |ipa Known to fail| |4.9.4 Status|NEW |RESOLVED Resolution|--- |FIXED CC| |marxin at gcc dot gnu.org --- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Fixed in GCC 8 so closing. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-12-23 4:11 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2012-06-26 8:15 [Bug middle-end/53776] New: pragma optimize does not support Os vincenzo.innocente at cern dot ch 2012-06-26 8:43 ` [Bug middle-end/53776] " pinskia at gcc dot gnu.org 2012-06-26 8:58 ` rguenth at gcc dot gnu.org 2021-08-12 5:41 ` pinskia at gcc dot gnu.org 2021-11-29 6:47 ` pinskia at gcc dot gnu.org 2021-12-23 4:11 ` [Bug ipa/53776] " pinskia at gcc dot gnu.org
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