[Bug debug/105158] ftree-ccp (CFG cleanup) drops DWARF const value attribute at -Og/-O1/-O2/-O3

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105158

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Created attachment 52748
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52748&action=edit
patch