Add inline functions for various bitwise operations.

	* hwint.h (least_bit_hwi, pow2_or_zerop, pow2p_hwi, ctz_or_zero):
	New.
	* hwint.c (exact_log2): Use pow2p_hwi.
	(ctz_hwi, ffs_hwi): Use least_bit_hwi.
	* alias.c (memrefs_conflict_p): Use pow2_or_zerop.
	* builtins.c (get_object_alignment_2, get_object_alignment)
	(get_pointer_alignment, fold_builtin_atomic_always_lock_free): Use
	least_bit_hwi.
	* calls.c (compute_argument_addresses, store_one_arg): Use
	least_bit_hwi.
	* cfgexpand.c (expand_one_stack_var_at): Use least_bit_hwi.
	* combine.c (force_to_mode): Use least_bit_hwi.
	* emit-rtl.c (set_mem_attributes_minus_bitpos, adjust_address_1):
	Use least_bit_hwi.
	* expmed.c (synth_mult, expand_divmod): Use ctz_or_zero, ctz_hwi.
	(init_expmed_one_conv): Use pow2p_hwi.
	* fold-const.c (round_up_loc, round_down_loc): Use pow2_or_zerop.
	(fold_binary_loc): Use pow2p_hwi.
	* function.c (assign_parm_find_stack_rtl): Use least_bit_hwi.
	* gimple-fold.c (gimple_fold_builtin_memory_op): Use pow2p_hwi.
	* gimple-ssa-strength-reduction.c (replace_ref): Use least_bit_hwi.
	* hsa-gen.c (gen_hsa_addr_with_align, hsa_bitmemref_alignment):
	Use least_bit_hwi.
	* ipa-cp.c (ipcp_alignment_lattice::meet_with_1): Use least_bit_hwi.
	* ipa-prop.c (ipa_modify_call_arguments): Use least_bit_hwi.
	* omp-low.c (oacc_loop_fixed_partitions)
	(oacc_loop_auto_partitions): Use least_bit_hwi.
	* rtlanal.c (nonzero_bits1): Use ctz_or_zero.
	* stor-layout.c (place_field): Use least_bit_hwi.
	* tree-pretty-print.c (dump_generic_node): Use pow2p_hwi.
	* tree-sra.c (build_ref_for_offset): Use least_bit_hwi.
	* tree-ssa-ccp.c (ccp_finalize): Use least_bit_hwi.
	* tree-ssa-math-opts.c (bswap_replace): Use least_bit_hwi.
	* tree-ssa-strlen.c (handle_builtin_memcmp): Use pow2p_hwi.
	* tree-vect-data-refs.c (vect_analyze_group_access_1)
	(vect_grouped_store_supported, vect_grouped_load_supported)
	(vect_permute_load_chain, vect_shift_permute_load_chain)
	(vect_transform_grouped_load): Use pow2p_hwi.
	* tree-vect-generic.c (expand_vector_divmod): Use ctz_or_zero.
	* tree-vect-patterns.c (vect_recog_divmod_pattern): Use ctz_or_zero.
	* tree-vect-stmts.c (vectorizable_mask_load_store): Use
	least_bit_hwi.
	* tsan.c (instrument_expr): Use least_bit_hwi.
	* var-tracking.c (negative_power_of_two_p): Use pow2_or_zerop.

From-SVN: r240194

1 files changed, 4 insertions, 8 deletions

diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c
index cf71714..07eac87 100644
--- a/gcc/stor-layout.c
+++ b/gcc/stor-layout.c
@@ -1169,14 +1169,12 @@ place_field (record_layout_info rli, tree field)
   /* Work out the known alignment so far.  Note that A & (-A) is the
      value of the least-significant bit in A that is one.  */
   if (! integer_zerop (rli->bitpos))
-    known_align = (tree_to_uhwi (rli->bitpos)
-		   & - tree_to_uhwi (rli->bitpos));
+    known_align = least_bit_hwi (tree_to_uhwi (rli->bitpos));
   else if (integer_zerop (rli->offset))
     known_align = 0;
   else if (tree_fits_uhwi_p (rli->offset))
     known_align = (BITS_PER_UNIT
-		   * (tree_to_uhwi (rli->offset)
-		      & - tree_to_uhwi (rli->offset)));
+		   * least_bit_hwi (tree_to_uhwi (rli->offset)));
   else
     known_align = rli->offset_align;
 
@@ -1479,14 +1477,12 @@ place_field (record_layout_info rli, tree field)
      approximate this by seeing if its position changed), lay out the field
      again; perhaps we can use an integral mode for it now.  */
   if (! integer_zerop (DECL_FIELD_BIT_OFFSET (field)))
-    actual_align = (tree_to_uhwi (DECL_FIELD_BIT_OFFSET (field))
-		    & - tree_to_uhwi (DECL_FIELD_BIT_OFFSET (field)));
+    actual_align = least_bit_hwi (tree_to_uhwi (DECL_FIELD_BIT_OFFSET (field)));
   else if (integer_zerop (DECL_FIELD_OFFSET (field)))
     actual_align = MAX (BIGGEST_ALIGNMENT, rli->record_align);
   else if (tree_fits_uhwi_p (DECL_FIELD_OFFSET (field)))
     actual_align = (BITS_PER_UNIT
-		   * (tree_to_uhwi (DECL_FIELD_OFFSET (field))
-		      & - tree_to_uhwi (DECL_FIELD_OFFSET (field))));
+		    * least_bit_hwi (tree_to_uhwi (DECL_FIELD_OFFSET (field))));
   else
     actual_align = DECL_OFFSET_ALIGN (field);
   /* ACTUAL_ALIGN is still the actual alignment *within the record* .