https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68785

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to rguent...@suse.de from comment #5)
> Err, no - the only option would be to _not_ fold if elen < size.  As
> said, SCCVN aggressively folds reads from initializers (even if
> in differing types).  I invented the "offset" parameter for this.

But that is what will happen, if there aren't enough bytes in the buffer for
a value you want native_interpret_*, then it returns NULL_TREE.
Look at all the native_interpret_* functions, they start with checking if there
are enough bytes in the buffer for what they want.

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