[Bug sanitizer/82046] [7/8 Regression] Bogus -fsanitize=undefined error with -O2 -Wall

2017-12-07 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82046 Jakub Jelinek changed: What|Removed |Added Status|NEW |RESOLVED Resolution|---

[Bug sanitizer/82046] [7/8 Regression] Bogus -fsanitize=undefined error with -O2 -Wall

2017-12-05 Thread msebor at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82046 --- Comment #5 from Martin Sebor --- I don't have a huge problem with closing this as won't fix. I do hope to get around to pr79265 and eliminate some of the unnecessary instrumentation to improve the efficiency of the instrumented code. If tha

[Bug sanitizer/82046] [7/8 Regression] Bogus -fsanitize=undefined error with -O2 -Wall

2017-12-05 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82046 --- Comment #4 from Jakub Jelinek --- At least for warnings that require optimizations in order to avoid false positives like these, I think you need to accept some false positives with sanitizers, which necessarily cause fewer optimizations (oth

[Bug sanitizer/82046] [7/8 Regression] Bogus -fsanitize=undefined error with -O2 -Wall

2017-08-31 Thread msebor at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82046 Martin Sebor changed: What|Removed |Added See Also||https://gcc.gnu.org/bugzill

[Bug sanitizer/82046] [7/8 Regression] Bogus -fsanitize=undefined error with -O2 -Wall

2017-08-31 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82046 Richard Biener changed: What|Removed |Added Keywords||diagnostic Priority|P3

[Bug sanitizer/82046] [7/8 Regression] Bogus -fsanitize=undefined error with -O2 -Wall

2017-08-31 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82046 --- Comment #2 from Richard Biener --- I suppose fancy threading gets in the way... [84.09%]: # p_4 = PHI if (p_4 == 0B) goto ; [0.04%] else goto ; [99.96%] [0.03%]: __builtin___ubsan_handle_nonnull_arg (&*.Lubsan_data0);

[Bug sanitizer/82046] [7/8 Regression] Bogus -fsanitize=undefined error with -O2 -Wall

2017-08-31 Thread marxin at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82046 Martin Liška changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|