[Bug tree-optimization/64715] [5 Regression] __builtin_object_size (..., 1) fails to locate subobject

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64715

--- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> ---
Created attachment 35064
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35064&action=edit
patch

I am testing the attached, testcases to be ameded from the dups.