re PR target/31334 (Bad codegen for vector initializer with constants prop'd into a vector initializer)

2008-03-28  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR target/31334
        * config/rs6000/rs6000.c (rs6000_expand_vector_init): Create a
        const_vector when all the vectors are constant.

2008-03-28  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR target/31334
        * gcc.target/powerpc/altivec-25.c: Nnew testcase.

From-SVN: r133674