http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50765
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011-10-27
Ever Confirmed|0 |1
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-27
11:11:15 UTC ---
Confirmed.
#2 0x0000000000a41dad in expand_insn (icode=CODE_FOR_vec_unpacks_lo_v4si,
nops=2, ops=0x7fffffffcb60)
at /space/rguenther/src/svn/trunk/gcc/optabs.c:7824
7824 gcc_unreachable ();
(gdb) l
7819 void
7820 expand_insn (enum insn_code icode, unsigned int nops,
7821 struct expand_operand *ops)
7822 {
7823 if (!maybe_expand_insn (icode, nops, ops))
7824 gcc_unreachable ();
It seems we expand some useless unpacking?
