https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97071
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
REG_EQUAL notes aren't really needed for that, we have functions to query the
values from the constant pool for loads from it.
So guess it is a matter of looking at the constant pool entry, if the negation
of it is already emitted and the current value is not, try if instruction with
the negation can be recognized.
If neither of the constant pool entries is emitted already, but both are
present, it should try to canonicalize to one of them...
