[Bug c++/35144] [4.3 regression] ICE in generate_element_copy

[jakub at gcc dot gnu dot org]

------- Comment #2 from jakub at gcc dot gnu dot org  2008-02-09 10:30 -------
Why do the structs need to be the same?  They have TYPE_STRUCTURAL_EQUALITY_P
set and useless_type_conversion_p is true for these two types.  And that's the
tree-ssa check for type compatibility.  It is very likely --combine can create
similar IL, so SRA needs to be able to deal with it.
I believe we could in cp_genericize_r replace all TYPE_PTRMEMFUNC_P types
with a single canonical RECORD_TYPE representing pointer to member, I don't
think
the middle-end should care about the differences, but that would be only a
workaround for the tree-sra inability to handle structuraly equal but not
identical aggregates.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35144