https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67618
roc at ocallahan dot org <roc at ocallahan dot org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |roc at ocallahan dot org --- Comment #13 from roc at ocallahan dot org <roc at ocallahan dot org> --- Here's one case where this optimization really is invalid: when you're compiling an implementation of calloc() :-(.