[Bug tree-optimization/64330] [5 Regression] IPA-ICF merges const exported vars that could be addressable in other TUs

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64330

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |hubicka at gcc dot gnu.org

--- Comment #7 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
I think the test should be something like
 VIRTUAL || -fmerge-all-constants || (!TREE_ADDRESSABLE && !
externally_visible)

te current code seems to miss the externally_visible flag.  Indeed you can not
merge symbols that may have address taken.

How does asan behave with aliases?

Honza