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* [Bug tree-optimization/106417] New: [13 Regression] Wrong code with -O0
@ 2022-07-23 4:03 vsevolod.livinskiy at gmail dot com
2022-07-25 6:51 ` [Bug tree-optimization/106417] [13 Regression] Wrong code with -O0 since r13-1779-g375668e0508fbe17 marxin at gcc dot gnu.org
2022-07-25 7:04 ` marxin at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: vsevolod.livinskiy at gmail dot com @ 2022-07-23 4:03 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106417
Bug ID: 106417
Summary: [13 Regression] Wrong code with -O0
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: vsevolod.livinskiy at gmail dot com
Target Milestone: ---
Reproducer:
#include <stdio.h>
signed char var_84 = (signed char)-125;
int a;
void test() __attribute__((noipa));
void test() { var_84 = ~((a < 4094) ^ int(!a)); }
int main() {
test();
printf("%d\n", var_84);
if (var_84 != -1)
__builtin_abort();
}
Error:
>$ /usr/bin/g++ -O0 driver.cpp && ./a.out
-1
>$ g++ -O0 driver.cpp && ./a.out
1
Aborted (core dumped)
gcc version 13.0.0 20220722 (3c4af0f0549a07799d76e9e48d3d3bd85197b92a)
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug tree-optimization/106417] [13 Regression] Wrong code with -O0 since r13-1779-g375668e0508fbe17
2022-07-23 4:03 [Bug tree-optimization/106417] New: [13 Regression] Wrong code with -O0 vsevolod.livinskiy at gmail dot com
@ 2022-07-25 6:51 ` marxin at gcc dot gnu.org
2022-07-25 7:04 ` marxin at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-07-25 6:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106417
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2022-07-25
CC| |marxin at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
Priority|P3 |P1
Ever confirmed|0 |1
Target Milestone|--- |13.0
Summary|[13 Regression] Wrong code |[13 Regression] Wrong code
|with -O0 |with -O0 since
| |r13-1779-g375668e0508fbe17
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r13-1779-g375668e0508fbe17.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug tree-optimization/106417] [13 Regression] Wrong code with -O0 since r13-1779-g375668e0508fbe17
2022-07-23 4:03 [Bug tree-optimization/106417] New: [13 Regression] Wrong code with -O0 vsevolod.livinskiy at gmail dot com
2022-07-25 6:51 ` [Bug tree-optimization/106417] [13 Regression] Wrong code with -O0 since r13-1779-g375668e0508fbe17 marxin at gcc dot gnu.org
@ 2022-07-25 7:04 ` marxin at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-07-25 7:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106417
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Dup.
*** This bug has been marked as a duplicate of bug 106414 ***
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2022-07-25 7:04 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2022-07-23 4:03 [Bug tree-optimization/106417] New: [13 Regression] Wrong code with -O0 vsevolod.livinskiy at gmail dot com
2022-07-25 6:51 ` [Bug tree-optimization/106417] [13 Regression] Wrong code with -O0 since r13-1779-g375668e0508fbe17 marxin at gcc dot gnu.org
2022-07-25 7:04 ` marxin at gcc dot gnu.org
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