https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87701
Segher Boessenkool <segher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |segher at gcc dot
gnu.org
--- Comment #6 from Segher Boessenkool <segher at gcc dot gnu.org> ---
We start off with
(insn 36 35 9 2 (set (reg:V4SI 104)
(subreg:V4SI (reg:TI 1 dx [ b ]) 0)) "87701.cc":13:31 -1
(expr_list:REG_DEAD (reg:DI 2 cx)
(expr_list:REG_DEAD (reg:DI 1 dx)
(nil))))
and replace that with
(insn 41 35 42 2 (set (reg:V4SI 107)
(reg:TI 1 dx [ b ])) "87701.cc":13:31 -1
(expr_list:REG_DEAD (reg:TI 1 dx [ b ])
(nil)))
42: r104:V4SI=r107:V4SI
REG_DEAD r107:V4SI
(no long form dump for that last one, sorry). Note the subreg has
gone missing. So which is correct here: with or without subreg?
