On 19 September 2011 08:54, Ira Rosen <ira.ro...@linaro.org> wrote: > > Bootstrapped on powerpc64-suse-linux, tested on powerpc64-suse-linux > and arm-linux-gnueabi > OK for mainline?
Sorry I missed this patch. Is there any reason why we need unspecs in this case ? Can't this be represented by subregs and zero/ sign extensions in RTL without the UNSPECs ? cheers Ramana > > Thanks, > Ira > > ChangeLog: > > * doc/md.texi (vec_widen_ushiftl_hi, vec_widen_ushiftl_lo, > vec_widen_sshiftl_hi, > vec_widen_sshiftl_lo): Document. > * tree-pretty-print.c (dump_generic_node): Handle > WIDEN_SHIFT_LEFT_EXPR, > VEC_WIDEN_SHIFT_LEFT_HI_EXPR and VEC_WIDEN_SHIFT_LEFT_LO_EXPR. > (op_code_prio): Likewise. > (op_symbol_code): Handle WIDEN_SHIFT_LEFT_EXPR. > * optabs.c (optab_for_tree_code): Handle > VEC_WIDEN_SHIFT_LEFT_HI_EXPR and VEC_WIDEN_SHIFT_LEFT_LO_EXPR. > (init-optabs): Initialize optab codes for vec_widen_u/sshiftl_hi/lo. > * optabs.h (enum optab_index): Add OTI_vec_widen_u/sshiftl_hi/lo. > * genopinit.c (optabs): Initialize the new optabs. > * expr.c (expand_expr_real_2): Handle > VEC_WIDEN_SHIFT_LEFT_HI_EXPR and VEC_WIDEN_SHIFT_LEFT_LO_EXPR. > * gimple-pretty-print.c (dump_binary_rhs): Likewise. > * tree-vectorizer.h (NUM_PATTERNS): Increase to 6. > * tree.def (WIDEN_SHIFT_LEFT_EXPR, VEC_WIDEN_SHIFT_LEFT_HI_EXPR, > VEC_WIDEN_SHIFT_LEFT_LO_EXPR): New. > * cfgexpand.c (expand_debug_expr): Handle new tree codes. > * tree-vect-patterns.c (vect_vect_recog_func_ptrs): Add > vect_recog_widen_shift_pattern. > (vect_handle_widen_mult_by_const): Rename... > (vect_handle_widen_op_by_const): ...to this. Handle shifts. > Add a new argument, update documentation. > (vect_recog_widen_mult_pattern): Assume that only second > operand can be constant. Update call to > vect_handle_widen_op_by_const. > (vect_operation_fits_smaller_type): Add the already existing > def stmt to the list of pattern statements. > (vect_recog_widen_shift_pattern): New. > * tree-vect-stmts.c (vectorizable_type_promotion): Handle > widening shifts. > (supportable_widening_operation): Likewise. > * tree-inline.c (estimate_operator_cost): Handle new tree codes. > * tree-vect-generic.c (expand_vector_operations_1): Likewise. > * tree-cfg.c (verify_gimple_assign_binary): Likewise. > * config/arm/neon.md (neon_vec_<US>shiftl_lo_<mode>): New. > (vec_widen_<US>shiftl_lo_<mode>, neon_vec_<US>shiftl_hi_<mode>, > vec_widen_<US>shiftl_hi_<mode>, neon_vec_<US>shift_left_<mode>): > Likewise. > * tree-vect-slp.c (vect_build_slp_tree): Require same shift operand > for widening shift. > > testsuite/ChangeLog: > > * gcc.dg/vect/vect-widen-shift-s16.c: New. > * gcc.dg/vect/vect-widen-shift-s8.c: New. > * gcc.dg/vect/vect-widen-shift-u16.c: New. > * gcc.dg/vect/vect-widen-shift-u8.c: New. >
