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* [Bug c++/15776] New: enum optimization produces wrong code @ 2004-06-02 13:15 gollin at informatik dot hu-berlin dot de 2004-06-02 13:18 ` [Bug c++/15776] " pinskia at gcc dot gnu dot org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: gollin at informatik dot hu-berlin dot de @ 2004-06-02 13:15 UTC (permalink / raw) To: gcc-bugs The following program doesn't run properly when compiled with -O #include <stdio.h> enum OptionStateEnum { SLEEPING, ACTIVE, INTENDED, DESIRED, EXECUTED, ABORTED }; int main() { OptionStateEnum l[2] = { EXECUTED, ACTIVE }; OptionStateEnum state; for ( int i = 0; i < 2; ++i ) { state = l[i]; printf( "state = %d\n", state ); if ( ( state == DESIRED ) || ( state == INTENDED ) || ( state == ACTIVE ) ) { printf( "break state = %d\n", state ); break; } } return 0; } The program was compiled using the following command: gcc -O -g0 optimize-enum.cpp -o optimize-enum.exe Resulting in the following output: state = 4 break state = 4 When compiled with -O0 the output is as expected: state = 4 state = 1 break state = 1 The problem also vanishes when checking for 4 or only 2 enums in the if-statement. Or when assigning explicit values to the enums (0, 2, 4, 8, 16, 32, 64). Cheers, Michael Gollin -- Summary: enum optimization produces wrong code Product: gcc Version: 3.4.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: gollin at informatik dot hu-berlin dot de CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15776 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/15776] enum optimization produces wrong code 2004-06-02 13:15 [Bug c++/15776] New: enum optimization produces wrong code gollin at informatik dot hu-berlin dot de @ 2004-06-02 13:18 ` pinskia at gcc dot gnu dot org 2004-07-27 23:32 ` pinskia at gcc dot gnu dot org 2004-07-27 23:32 ` pinskia at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-06-02 13:18 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2004-06-02 13:18 ------- This is a dup of bug 15069 which is fixed for 3.4.1. *** This bug has been marked as a duplicate of 15069 *** -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |DUPLICATE http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15776 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/15776] enum optimization produces wrong code 2004-06-02 13:15 [Bug c++/15776] New: enum optimization produces wrong code gollin at informatik dot hu-berlin dot de 2004-06-02 13:18 ` [Bug c++/15776] " pinskia at gcc dot gnu dot org @ 2004-07-27 23:32 ` pinskia at gcc dot gnu dot org 2004-07-27 23:32 ` pinskia at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-07-27 23:32 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2004-07-27 23:32 ------- *** This bug has been marked as a duplicate of 16372 *** -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |DUPLICATE http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15776 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/15776] enum optimization produces wrong code 2004-06-02 13:15 [Bug c++/15776] New: enum optimization produces wrong code gollin at informatik dot hu-berlin dot de 2004-06-02 13:18 ` [Bug c++/15776] " pinskia at gcc dot gnu dot org 2004-07-27 23:32 ` pinskia at gcc dot gnu dot org @ 2004-07-27 23:32 ` pinskia at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-07-27 23:32 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2004-07-27 23:32 ------- Reopen as I marked it as a wrong bug as a dup of. -- What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |UNCONFIRMED Resolution|DUPLICATE | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15776 ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2004-07-27 23:32 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2004-06-02 13:15 [Bug c++/15776] New: enum optimization produces wrong code gollin at informatik dot hu-berlin dot de 2004-06-02 13:18 ` [Bug c++/15776] " pinskia at gcc dot gnu dot org 2004-07-27 23:32 ` pinskia at gcc dot gnu dot org 2004-07-27 23:32 ` pinskia at gcc dot gnu dot org
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