https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116570
--- Comment #6 from uis ---
I looked into tree-ssa-dse.cc. Does it only work with builtins? I testes with
mismatched free(malloc_test and regular free), store was removed.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116570
--- Comment #5 from Xi Ruoyao ---
(In reply to uis from comment #4)
> I tried even adding restrict keyword and leaf attribute.
Why would they make any difference?
If do_something_with is a macro the leaf attribute won't invalidate my example.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116570
--- Comment #4 from uis ---
I tried even adding restrict keyword and leaf attribute.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116570
--- Comment #3 from uis ---
And there is no way to tell compiler that store is dead without at least
disabling writes to globals?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116570
Xi Ruoyao changed:
What|Removed |Added
CC||xry111 at gcc dot gnu.org
Statu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116570
--- Comment #1 from uis ---
Maybe I need some attribute to mark returned pointer as not potentially being
memory-mapped file?
