Use std::swap instead of manual swaps.

gcc/
	* auto-inc-dec.c (reverse_mem, reverse_inc): Remove.
	(parse_add_or_inc): Use std::swap instead of reverse_{mem,inc}.
	(find_inc): Likewise.
	* combine.c (combine_simplify_rtx): Use std::swap instead of manually
	swapping.
	* df-core.c (df_worklist_dataflow_doublequeue): Likewise.
	* df-scan.c (df_swap_refs): Remove.
	(df_sort_and_compress_refs): Use std::swap instead of df_swap_refs.
	* dominance.c (link_roots): Use std::swap instead of manually swapping.
	* expr.c (expand_expr_real_2, do_store_flag): Likewise.
	* fold-const.c (fold_relational_const): Likewise.
	* genattrtab.c (simplify_test_exp): Likewise.
	* gimple-match-head.c (gimple_resimplify2, gimple_resimplify3,
	gimple_simplify): Likewise.
	* ifcvt.c (noce_try_abs, find_if_header): Likewise.
	* internal-fn.c (expand_addsub_overflow, expand_mul_overflow): Likewise.
	* ipa-devirt.c (add_type_duplicate): Likewise.
	* loop-iv.c (get_biv_step_1, iv_number_of_iterations): Likewise.
	* lra-lives.c (lra_setup_reload_pseudo_preferenced_hard_reg): Likewise.
	* lra.c (lra_create_copy): Likewise.
	* lto-streamer-out.c (DFS::DFS): Likewise.
	* modulo-sched.c (get_sched_window): Likewise.
	* omega.c (omega_pretty_print_problem): Likewise.
	* optabs.c (prepare_float_lib_cmp, expand_mult_highpart): Likewise.
	* reload1.c (reloads_unique_chain_p): Likewise.
	* sel-sched-ir.c (exchange_lv_sets, exchange_av_sets): Remove.
	(exchange_data_sets): Move logic from exchange_{av,lv}_sets here and
	use std::swap.
	* simplify-rtx.c (simplify_unary_operation_1): Use std::swap instead of
	manually swapping.
	* tree-if-conv.c (is_cond_scalar_reduction, predicate_scalar_phi,
	predicate_mem_writes): Likewise.
	* tree-loop-distribution.c (pg_add_dependence_edges): Likewise.
	* tree-predcom.c (combine_chains): Likewise.
	* tree-ssa-alias.c (nonoverlapping_component_refs_p,
	refs_may_alias_p_1): Likewise.
	* tree-ssa-ifcombine.c (recognize_if_then_else): Likewise.
	* tree-ssa-loop-ivopts.c (extract_cond_operands): Likewise.
	* tree-ssa-loop-niter.c (refine_bounds_using_guard,
	number_of_iterations_cond): Likewise.
	* tree-ssa-phiopt.c (tree_ssa_phiopt_worker): Likewise.
	* tree-ssa-sccvn.c (vn_nary_op_compute_hash): Likewise.
	* tree-vect-slp.c (vect_build_slp_tree): Likewise.
	* tree-vect-stmts.c (supportable_widening_operation): Likewise.
	* tree-vrp.c (extract_range_from_binary_expr_1,
	extract_range_from_unary_expr_1): Likewise.

gcc/cp/
	* pt.c (maybe_adjust_types_for_deduction): Use std::swap instead of
	manually swapping.
	* semantics.c (finish_omp_atomic): Likewise.
	* typeck.c (cp_build_array_ref): Likewise.

gcc/c-family/
	* c-common.c (scalar_to_vector): Use std::swap instead of manually
	swapping.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@224718 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 1 insertions, 9 deletions

diff --git a/gcc/df-scan.c b/gcc/df-scan.c
index 07e6ad5de51..ef9cdbbbe32 100644
--- a/gcc/df-scan.c
+++ b/gcc/df-scan.c
@@ -2133,14 +2133,6 @@ df_ref_ptr_compare (const void *r1, const void *r2)
   return df_ref_compare (*(const df_ref *) r1, *(const df_ref *) r2);
 }
 
-static void
-df_swap_refs (vec<df_ref, va_heap> *ref_vec, int i, int j)
-{
-  df_ref tmp = (*ref_vec)[i];
-  (*ref_vec)[i] = (*ref_vec)[j];
-  (*ref_vec)[j] = tmp;
-}
-
 /* Sort and compress a set of refs.  */
 
 static void
@@ -2160,7 +2152,7 @@ df_sort_and_compress_refs (vec<df_ref, va_heap> *ref_vec)
       df_ref r0 = (*ref_vec)[0];
       df_ref r1 = (*ref_vec)[1];
       if (df_ref_compare (r0, r1) > 0)
-        df_swap_refs (ref_vec, 0, 1);
+	std::swap ((*ref_vec)[0], (*ref_vec)[1]);
     }
   else
     {