http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50181
--- Comment #1 from Peter Bergner <bergner at gcc dot gnu.org> 2012-02-28 14:53:57 UTC --- Created attachment 26769 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26769 Smaller C test case Here is a smaller C test case that doesn't require -fprofile-generate to ICE: bergner@igoo:~/gcc/BUGS/pr50181> /home/bergner/gcc/build/gcc-fsf-4_6-base/gcc/xgcc -B/home/bergner/gcc/build/gcc-fsf-4_6-base/gcc -O3 -mcpu=power7 -S pr50181.c pr50181.c: In function ‘testcase’: pr50181.c:29:1: error: insn does not satisfy its constraints: (insn 69 7 68 2 (set (reg:V4SI 10 10) (const_vector:V4SI [ (const_int 1 [0x1]) (const_int 1 [0x1]) (const_int 1 [0x1]) (const_int 1 [0x1]) ])) pr50181.c:17 789 {*vsx_movv4si} (nil)) pr50181.c:29:1: internal compiler error: in reload_cse_simplify_operands, at postreload.c:403 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions.