[Bug middle-end/108721] [10/11/12/13 Regression] csmith: really old bug with -O2

2023-02-16 Thread jakub at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108721 Jakub Jelinek changed: What|Removed |Added Resolution|--- |INVALID Status|UNCONFIRMED

[Bug middle-end/108721] [10/11/12/13 Regression] csmith: really old bug with -O2

2023-02-16 Thread jakub at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108721 --- Comment #4 from Jakub Jelinek --- In the reduced testcase there is certainly an aliasing violation. struct { unsigned f0 } g_95 = {65531}; ... *g_412 = _95; ... --g_95.f0; *g_86 = g_613 || 0; *g_412 = 0; short *l_873 = _95;

[Bug middle-end/108721] [10/11/12/13 Regression] csmith: really old bug with -O2

2023-02-15 Thread dcb314 at hotmail dot com via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108721 --- Comment #3 from David Binderman --- Created attachment 54471 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54471=edit C source code After a short reduction.