https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106101
--- Comment #11 from Andreas Krebbel <krebbel at gcc dot gnu.org> ---
I've tried to change our movstrict backend patterns to use a predicate on the
dest operand which enforces a subreg. However, since reload strips the subreg
away when assigning hard regs we end up with a STRICT_LOW_PART of a reg again.
At least after reload something like this should be acceptable - right?
298r.ira:
(insn 8 16 17 3 (set (strict_low_part (subreg:SI (reg/v:DI 64 [ e ]) 4))
(const_int 0 [0])) "t.cc":37:17 1485 {movstrictsi}
(nil))
299r.reload:
(insn 8 16 17 3 (set (strict_low_part (reg:SI 11 %r11 [orig:64 e+4 ] [64]))
(mem/u/c:SI (symbol_ref/u:DI ("*.LC0") [flags 0x2]) [0 S4 A32]))
"t.cc":37:17 1485 {movstrictsi}
(nil))
