Use std::swap instead of explicit swaps

gcc/
	* bb-reorder.c (fix_up_fall_thru_edges): Use std::swap instead of
	explicit swaps.
	* dojump.c (do_compare_rtx_and_jump): Likewise.
	* expmed.c (emit_store_flag_1): Likewise.
	* fibonacci_heap.h (fibonacci_heap::union_with): Likewise.
	* final.c (sprint_ul): Use std::reverse for reversing a string.
	* fold-const.c (extract_muldiv_1): Use std::swap.
	* genmodes.c (emit_mode_int_n): Likewise.
	* ifcvt.c (dead_or_predicable): Likewise.
	* ira-build.c (ira_merge_live_ranges): Likewise.
	(swap_allocno_copy_ends_if_necessary): Likewise.
	* ira.c (ira_setup_alts): Likewise.
	* loop-iv.c (iv_analyze_expr): Likewise.
	(implies_p): Likewise.
	(canon_condition): Likewise.
	* lra-constraints.c (swap_operands): Likewise.
	* lra-lives.c (lra_merge_live_ranges): Likewise.
	* omega.c (swap): Remove.
	(bswap): Remove.
	(omega_unprotect_1): Use std::swap.
	(omega_solve_geq): Likewise.
	* optabs.c (expand_binop_directly): Likewise.
	(expand_binop): Likewise.
	(emit_conditional_move): Likewise.
	(emit_conditional_add): Likewise.
	* postreload.c (reload_cse_simplify_operands): Likewise.
	* reg-stack.c (emit_swap_insn): Likewise.
	(swap_to_top): Likewise.
	(compare_for_stack_reg): Likewise.
	(subst_asm_stack_regs): Likewise.
	* reload.c (find_reloads): Likewise.
	* reload1.c (gen_reload_chain_without_interm_reg_p): Likewise.
	* sel-sched.c (invoke_reorder_hooks): Likewise.
	(create_block_for_bookkeeping): Likewise.
	* tree-data-ref.c (lambda_matrix_row_exchange): Remove.
	(lambda_matrix_right_hermite): Use std::swap.
	* tree-ssa-coalesce.c (sort_coalesce_list): Likewise.
	* tree-ssa-ifcombine.c (ifcombine_ifandif): Likewise.
	* tree-ssa-loop-ivopts.c (iv_ca_delta_reverse): Likewise.
	* tree-ssa-math-opts.c (is_widening_mult_p): Likewise.
	* tree-ssa-phiopt.c (hoist_adjacent_loads): Likewise.
	* tree-ssa-reassoc.c (linearize_expr_tree): Likewise.
	* tree-ssa-threadedge.c (simplify_control_stmt_condition): Likewise.
	* tree-vrp.c (compare_ranges): Likewise.
	* var-tracking.c (add_with_sets): Likewise.
	(vt_find_locations): Likewise.

gcc/c/
	* c-typeck.c (build_array_ref): Use std::swap instead of explicit
	swaps

gcc/cp/
	* typeck.c (composite_pointer_type): Use std::swap instead of explicit
	swaps.

gcc/c-family/
	* c-common.c (shorten_compare): Use std::swap instead of explicit swaps.

gcc/fortran/
	* interface.c (compare_actual_formal): Use std::swap instead of
	explicit swaps.
	* trans-array.c (gfc_trans_scalarized_loop_end): Likewise.
	* trans-intrinsic.c (walk_inline_intrinsic_transpose): Likewise.

From-SVN: r223332

1 files changed, 2 insertions, 14 deletions

diff --git a/gcc/tree-data-ref.c b/gcc/tree-data-ref.c
index 3d1d5f8..505d63b 100644
--- a/gcc/tree-data-ref.c
+++ b/gcc/tree-data-ref.c
@@ -2411,18 +2411,6 @@ lambda_matrix_row_add (lambda_matrix mat, int n, int r1, int r2, int const1)
     mat[r2][i] += const1 * mat[r1][i];
 }
 
-/* Swap rows R1 and R2 in matrix MAT.  */
-
-static void
-lambda_matrix_row_exchange (lambda_matrix mat, int r1, int r2)
-{
-  lambda_vector row;
-
-  row = mat[r1];
-  mat[r1] = mat[r2];
-  mat[r2] = row;
-}
-
 /* Multiply vector VEC1 of length SIZE by a constant CONST1,
    and store the result in VEC2.  */
 
@@ -2503,10 +2491,10 @@ lambda_matrix_right_hermite (lambda_matrix A, int m, int n,
 		  factor = sigma * (a / b);
 
 		  lambda_matrix_row_add (S, n, i, i-1, -factor);
-		  lambda_matrix_row_exchange (S, i, i-1);
+		  std::swap (S[i], S[i-1]);
 
 		  lambda_matrix_row_add (U, m, i, i-1, -factor);
-		  lambda_matrix_row_exchange (U, i, i-1);
+		  std::swap (U[i], U[i-1]);
 		}
 	    }
 	}