Liu <pro...@gmail.com> writes: > On Wed, Mar 30, 2011 at 11:45 PM, Ian Lance Taylor <i...@google.com> wrote: >> Liu <pro...@gmail.com> writes: >> >>> if (GET_MODE (dest) == V32QImode) >>> tmp_reg = gen_reg_rtx (V32QImode); >> >>> vpaddd.c:33:1: internal compiler error: in gen_reg_rtx, at emit-rtl.c:863 >>> Please submit a full bug report, >>> with preprocessed source if appropriate. >>> See <http://gcc.gnu.org/bugs.html> for instructions. >>> >>> emit-rtl.c:863 is gcc_assert (can_create_pseudo_p ()); >> >> You can only call gen_reg_rtx if can_create_pseudo_p returns true. It >> will return false during and after register allocation. Your code is >> being called at that time somehow, probably during reload. You have to >> either ensure that that does not happen, or, more likely, you have to >> arrange to use an existing register rather than create a new one. For >> example, look for uses of can_create_pseudo_p in mips.c. >> >> Ian >> > > Thank you very much Ian! > > Does SCRATCH will be OK?
Not directly, no. You can use match_scratch as part of a secondary reload, though. I don't know whether you need a secondary reload here or not. Ian
