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* [Bug c/107387] New: gcc trunk -O2 crashes when enable UBSan @ 2022-10-24 20:38 shaohua.li at inf dot ethz.ch 2022-10-24 20:42 ` [Bug c/107387] [13 Regression] " mpolacek at gcc dot gnu.org ` (4 more replies) 0 siblings, 5 replies; 6+ messages in thread From: shaohua.li at inf dot ethz.ch @ 2022-10-24 20:38 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107387 Bug ID: 107387 Summary: gcc trunk -O2 crashes when enable UBSan Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: shaohua.li at inf dot ethz.ch Target Milestone: --- % gcc-tk -v Using built-in specs. COLLECT_GCC=gcc-tk COLLECT_LTO_WRAPPER=/zdata/shaoli/compilers/ccbuilder-compilers/gcc-99da523359e9333555585484eb3b8f854a98f1b4/libexec/gcc/x86_64-pc-linux-gnu/13.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../configure --disable-multilib --disable-bootstrap --enable-languages=c,c++ --prefix=/zdata/shaoli/compilers/ccbuilder-compilers/gcc-99da523359e9333555585484eb3b8f854a98f1b4 Thread model: posix Supported LTO compression algorithms: zlib gcc version 13.0.0 20221013 (experimental) (GCC) % % gcc-tk -fsanitize=undefined -O2 a.c a.c: In function ‘m’: a.c:8:59: warning: division by zero [-Wdiv-by-zero] 8 | static inline __attribute__((always_inline)) void m() { 0 / 0; } | ^ during GIMPLE pass: slp a.c: In function ‘p.isra’: a.c:31:7: internal compiler error: in to_sreal_scale, at profile-count.cc:339 31 | void *p() { | ^ 0x2059aee internal_error(char const*, ...) ???:0 0x99f3c4 fancy_abort(char const*, int, char const*) ???:0 0x1310657 vect_optimize_slp_pass::start_choosing_layouts() ???:0 0x13118af vect_optimize_slp_pass::run() ???:0 0x1319cd9 vect_slp_function(function*) ???:0 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. % % cat a.c int a, b, c, e, k; char *d; struct { short f; short g; } l; static int h = 1; static inline __attribute__((always_inline)) void m() { 0 / 0; } static int n() { return a && b && a < b ?: b; } static int *o(); static void *p(); static unsigned short q(int); void r() { p(); o(&a); m(); } int *o(int *s) { *s = n(); } unsigned short q(int s) { if (s) { int i = 0; for (; i < 7;) i = 7; k = n(); } } void *p() { int i, j; char *t[81]; for (; i < 8; i++) for (; j; j++) t[e] = d; q(h); if (c) l.g = l.f = 0; } % Compiler explorer: https://godbolt.org/z/qEWr71vbd ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/107387] [13 Regression] gcc trunk -O2 crashes when enable UBSan 2022-10-24 20:38 [Bug c/107387] New: gcc trunk -O2 crashes when enable UBSan shaohua.li at inf dot ethz.ch @ 2022-10-24 20:42 ` mpolacek at gcc dot gnu.org 2022-10-24 20:44 ` [Bug tree-optimization/107387] " mpolacek at gcc dot gnu.org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: mpolacek at gcc dot gnu.org @ 2022-10-24 20:42 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107387 Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2022-10-24 Summary|gcc trunk -O2 crashes when |[13 Regression] gcc trunk |enable UBSan |-O2 crashes when enable | |UBSan CC| |mpolacek at gcc dot gnu.org Status|UNCONFIRMED |NEW Ever confirmed|0 |1 Target Milestone|--- |13.0 --- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Confirmed. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/107387] [13 Regression] gcc trunk -O2 crashes when enable UBSan 2022-10-24 20:38 [Bug c/107387] New: gcc trunk -O2 crashes when enable UBSan shaohua.li at inf dot ethz.ch 2022-10-24 20:42 ` [Bug c/107387] [13 Regression] " mpolacek at gcc dot gnu.org @ 2022-10-24 20:44 ` mpolacek at gcc dot gnu.org 2022-10-25 7:01 ` [Bug tree-optimization/107387] [13 Regression] gcc trunk -O2 crashes when enable UBSan since r13-2288-g61c4c989034548 rguenth at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: mpolacek at gcc dot gnu.org @ 2022-10-24 20:44 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107387 Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rsandifo at gcc dot gnu.org Component|c |tree-optimization --- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Started with r13-2288-g61c4c989034548. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/107387] [13 Regression] gcc trunk -O2 crashes when enable UBSan since r13-2288-g61c4c989034548 2022-10-24 20:38 [Bug c/107387] New: gcc trunk -O2 crashes when enable UBSan shaohua.li at inf dot ethz.ch 2022-10-24 20:42 ` [Bug c/107387] [13 Regression] " mpolacek at gcc dot gnu.org 2022-10-24 20:44 ` [Bug tree-optimization/107387] " mpolacek at gcc dot gnu.org @ 2022-10-25 7:01 ` rguenth at gcc dot gnu.org 2022-10-25 9:06 ` rsandifo at gcc dot gnu.org 2022-10-26 9:07 ` rsandifo at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu.org @ 2022-10-25 7:01 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107387 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P3 |P1 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/107387] [13 Regression] gcc trunk -O2 crashes when enable UBSan since r13-2288-g61c4c989034548 2022-10-24 20:38 [Bug c/107387] New: gcc trunk -O2 crashes when enable UBSan shaohua.li at inf dot ethz.ch ` (2 preceding siblings ...) 2022-10-25 7:01 ` [Bug tree-optimization/107387] [13 Regression] gcc trunk -O2 crashes when enable UBSan since r13-2288-g61c4c989034548 rguenth at gcc dot gnu.org @ 2022-10-25 9:06 ` rsandifo at gcc dot gnu.org 2022-10-26 9:07 ` rsandifo at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: rsandifo at gcc dot gnu.org @ 2022-10-25 9:06 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107387 rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |rsandifo at gcc dot gnu.org --- Comment #3 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> --- Mine. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/107387] [13 Regression] gcc trunk -O2 crashes when enable UBSan since r13-2288-g61c4c989034548 2022-10-24 20:38 [Bug c/107387] New: gcc trunk -O2 crashes when enable UBSan shaohua.li at inf dot ethz.ch ` (3 preceding siblings ...) 2022-10-25 9:06 ` rsandifo at gcc dot gnu.org @ 2022-10-26 9:07 ` rsandifo at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: rsandifo at gcc dot gnu.org @ 2022-10-26 9:07 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107387 rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |DUPLICATE --- Comment #4 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> --- Seems to be a dup of PR106896. I'm still not sure how to fix that -- hopefully Honza can point me in the right direction. :-) *** This bug has been marked as a duplicate of bug 106896 *** ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-10-26 9:07 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2022-10-24 20:38 [Bug c/107387] New: gcc trunk -O2 crashes when enable UBSan shaohua.li at inf dot ethz.ch 2022-10-24 20:42 ` [Bug c/107387] [13 Regression] " mpolacek at gcc dot gnu.org 2022-10-24 20:44 ` [Bug tree-optimization/107387] " mpolacek at gcc dot gnu.org 2022-10-25 7:01 ` [Bug tree-optimization/107387] [13 Regression] gcc trunk -O2 crashes when enable UBSan since r13-2288-g61c4c989034548 rguenth at gcc dot gnu.org 2022-10-25 9:06 ` rsandifo at gcc dot gnu.org 2022-10-26 9:07 ` rsandifo at gcc dot gnu.org
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