https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66877
--- Comment #6 from rguenther at suse dot de <rguenther at suse dot de> --- On Tue, 19 Jan 2016, ktkachov at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66877 > > --- Comment #5 from ktkachov at gcc dot gnu.org --- > (In reply to Richard Biener from comment #4) > > For some reason you get widening shifts recognized while I get them not > > supported by the HW (with the cross at -O2 -ftree-vectorize). -mfpu=neon > > doesn't help. > > > > I still can't reproduce your dump file with > > > > /space/rguenther/src/svn/trunk3/configure --target=arm-none-eabi > > gcc> /cc1 -quiet t.c -O2 -ftree-vectorize -fdump-tree-vect-details > > -fno-vect-cost-model -fno-common -mfpu=neon -march=armv7-a > > > > Can you try adding -mfloat-abi=hard to the command line? Thanks, that way it works. Just figured I can't test if the suggested testsuite addition works though.
