[Bug middle-end/112683] Optimizing memcpy range by extending to word bounds

2023-11-24 Thread rguenth at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112683 --- Comment #2 from Richard Biener --- Note copying more will likely trigger valgrind complaints accessing uninitialized memory? Technically it also makes the IL to invoke undefined behavior, if we'd expand this to byte-by-byte copies with regi

[Bug middle-end/112683] Optimizing memcpy range by extending to word bounds

2023-11-23 Thread pinskia at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112683 Andrew Pinski changed: What|Removed |Added Component|target |middle-end --- Comment #1 from Andrew P