> 2015-02-02 Jakub Jelinek
>
> PR rtl-optimization/64756
> * cse.c (cse_insn): If dest != SET_DEST (sets[i].rtl) and
> HASH (SET_DEST (sets[i].rtl), mode) computation sets do_not_record,
> invalidate and do not record it.
>
> * gcc.c-torture/execute/pr64756.c: New
Hi!
We miscompile the following testcase, because first we add
a mem/v into the hash table (which should not happen), later on
during merge_equiv_classes a new element for that mem/v is added
and doesn't even have in_memory set (because HASH failed with do_not_record
but nothing checked it) and la