http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56275
--- Comment #2 from Uros Bizjak <ubizjak at gmail dot com> 2013-02-10 16:15:13 UTC --- More reduced testcase --cut here-- typedef long long v2tw __attribute__ ((vector_size (2 * sizeof (long long)))); void tiger_block_v2 (long long in1, v2tw *res) { v2tw i1 = { in1, in1 }; *res = i1 << 1; } --cut here--