[Bug rtl-optimization/87361] [9 regression] gcc.target/sparc/20161111-1.c FAILs

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87361

--- Comment #6 from Segher Boessenkool <segher at gcc dot gnu.org> ---
I think nonzero_bits should use SUBREG_PROMOTED_VAR_P and
SUBREG_PROMOTED_UNSIGNED_P for REGs, not LOAD_EXTEND_OP, which is
only for MEMs.