https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80845
--- Comment #3 from Tom de Vries <vries at gcc dot gnu.org> ---
Likewise, a split reg example in gcc/testsuite/gcc.target/nvptx/abi-vararg-2.c:
...
//(insn 29 27 30 4
// (set (reg:DI 40)
// (subreg:DI (reg:TI 23) 0)) 5 {*movdi_insn}
// (nil))
cvt.u64.u64 %r40, %r23$0; // 29 *movdi_insn/1
...
With dst_inner == DI and src_inner == TI we end up printing cvt.u64.u64 instead
of mov.u64.
