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, 5 insertions, 5 deletions

diff --git a/gcc/builtins.c b/gcc/builtins.c
index e779c71..189aeac 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -305,7 +305,7 @@ get_object_alignment_2 (tree exp, unsigned int *alignp,
 	{
 	  ptr_bitmask = TREE_INT_CST_LOW (TREE_OPERAND (addr, 1));
 	  ptr_bitmask *= BITS_PER_UNIT;
-	  align = ptr_bitmask & -ptr_bitmask;
+	  align = least_bit_hwi (ptr_bitmask);
 	  addr = TREE_OPERAND (addr, 0);
 	}
 
@@ -325,7 +325,7 @@ get_object_alignment_2 (tree exp, unsigned int *alignp,
 	      unsigned HOST_WIDE_INT step = 1;
 	      if (TMR_STEP (exp))
 		step = TREE_INT_CST_LOW (TMR_STEP (exp));
-	      align = MIN (align, (step & -step) * BITS_PER_UNIT);
+	      align = MIN (align, least_bit_hwi (step) * BITS_PER_UNIT);
 	    }
 	  if (TMR_INDEX2 (exp))
 	    align = BITS_PER_UNIT;
@@ -404,7 +404,7 @@ get_object_alignment (tree exp)
      ptr & (align - 1) == bitpos.  */
 
   if (bitpos != 0)
-    align = (bitpos & -bitpos);
+    align = least_bit_hwi (bitpos);
   return align;
 }
 
@@ -502,7 +502,7 @@ get_pointer_alignment (tree exp)
      ptr & (align - 1) == bitpos.  */
 
   if (bitpos != 0)
-    align = (bitpos & -bitpos);
+    align = least_bit_hwi (bitpos);
 
   return align;
 }
@@ -5559,7 +5559,7 @@ fold_builtin_atomic_always_lock_free (tree arg0, tree arg1)
 
       /* Either this argument is null, or it's a fake pointer encoding
          the alignment of the object.  */
-      val = val & -val;
+      val = least_bit_hwi (val);
       val *= BITS_PER_UNIT;
 
       if (val == 0 || mode_align < val)