[Bug middle-end/53875] calls to const functions are eliminated at -O0

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53875

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c++                         |middle-end

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This even happens in C.
It happens during expand phase:
;; Generating RTL for gimple basic block 2

;; pthread_self ();

(nil)

Maybe at -O0 or -Og, during expand we still expand the call ...