On Thu, Sep 27, 2012 at 8:20 PM, Jakub Jelinek <ja...@redhat.com> wrote: > On Thu, Sep 27, 2012 at 08:04:58PM +0200, Uros Bizjak wrote: >> After some off-line discussion with Richard, attached is v2 of the patch. >> >> 2012-09-27 Uros Bizjak <ubiz...@gmail.com> >> >> PR rtl-optimization/54457 >> * simplify-rtx.c (simplify_subreg): >> Simplify (subreg:SI (op:DI ((x:DI) (y:DI)), 0) >> to (op:SI (subreg:SI (x:DI) 0) (subreg:SI (x:DI) 0)). > > Is that a good idea even for WORD_REGISTER_OPERATIONS targets?
I have bootstrapped and regtested [1] the patch on alphaev68-pc-linux-gnu, a WORD_REGISTER_OPERATIONS target, and there were no additional failures. [1] http://gcc.gnu.org/ml/gcc-testresults/2012-09/msg02828.html Uros.
