------- Comment #14 from ubizjak at gmail dot com 2007-05-17 07:45 ------- Altivec PPC has int->float cvt insn and provides signed/unsigned vec_unpack v8hi insn. It should be trivial to implement short->float and unsigned short->float conversions by providing vec_unpacks_float_lo_v8hi, vec_unpacks_float_hi_v8hi, vec_unpacku_float_lo_v8hi and vec_unpacku_float_hi_v8hi patterns (please look into i386/sse.md file).
By providing these patterns, loops in gcc.dg/vect/vect-intfloat-conversion-4a.c and gcc.dg/vect/vect-intfloat-conversion-4b.c should be vectorized. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24659
