* optabs.c (expand_vec_perm): Avoid vector mode punning
SUBREGs in SET_DEST.
* expmed.c (store_bit_field_1): Likewise.
* config/i386/sse.md (movdi_to_sse, vec_pack_sfix_trunc_v2df,
vec_pack_sfix_v2df, vec_shl_<mode>, vec_shr_<mode>,
vec_interleave_high<mode>, vec_interleave_low<mode>): Likewise.
* config/i386/i386.c (ix86_expand_vector_move_misalign,
ix86_expand_sse_movcc, ix86_expand_int_vcond, ix86_expand_vec_perm,
ix86_expand_sse_unpack, ix86_expand_args_builtin,
ix86_expand_vector_init_duplicate, ix86_expand_vector_set,
emit_reduc_half, expand_vec_perm_blend, expand_vec_perm_pshufb,
expand_vec_perm_interleave2, expand_vec_perm_pshufb2,
expand_vec_perm_vpshufb2_vpermq,
expand_vec_perm_vpshufb2_vpermq_even_odd, expand_vec_perm_even_odd_1,
expand_vec_perm_broadcast_1, expand_vec_perm_vpshufb4_vpermq2,
ix86_expand_sse2_mulv4si3, ix86_expand_pinsr): Likewise.
(expand_vec_perm_palignr): Likewise. Modify a copy of *d rather
than *d itself.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204274 138bc75d-0d04-0410-961f-82ee72b054a4