On Sun, Nov 17, 2013 at 8:33 PM, Bill Schmidt <wschm...@linux.vnet.ibm.com> wrote: > Hi, > > As Ulrich Weigand discovered, libcpp/lex.c contains some code optimized > for use with Altivec that is incorrect for little endian targets. This > breaks bootstrap on powerpc64le-unknown-linux-gnu when configured with > --with-cpu=power7. > > This patch makes appropriate modifications for little endian. The > transformation of lvsr/vperm(x,y,z) into lvsl/vperm(y,x,z) is familiar > from a previous patch. The other obvious change is converting > count-leading-zeroes into count-trailing-zeroes. > > Bootstrapped on powerpc64-unknown-linux-gnu (BE) using --with-cpu=power7 > with no regressions. Bootstrap for powerpc64le-unknown-linux-gnu (LE) > using --with-cpu=power7 now completes with this patch. There are still > failures for --with-cpu=power7 that are not present using > --with-cpu=power6 that need to be investigated, but they are unrelated > to this change. > > Ok for trunk? > > Thanks, > Bill > > > 2013-11-17 Bill Schmidt <wschm...@linux.vnet.ibm.com> > > * lex.c (search_line_fast): Correct for little endian.
Okay. Thanks, David
