re PR debug/66691 (ICE on valid code at -O3 with -g enabled in simplify_subreg, at...

[gcc.git] / gcc / tree-loop-distribution.c

diff --git a/gcc/tree-loop-distribution.c b/gcc/tree-loop-distribution.c
index 96fbc3620f592e7f02e700311eefc64ec317fe85..19523b941d2a52de888d61103cf33f0e5af5d7d0 100644 (file)
--- a/gcc/tree-loop-distribution.c
+++ b/gcc/tree-loop-distribution.c
@@ -1360,9 +1360,7 @@ pg_add_dependence_edges (struct graph *rdg, vec<loop_p> loops, int dir,
        if (rdg_vertex_for_stmt (rdg, DR_STMT (dr1))
            > rdg_vertex_for_stmt (rdg, DR_STMT (dr2)))
          {
-           data_reference_p tem = dr1;
-           dr1 = dr2;
-           dr2 = tem;
+           std::swap (dr1, dr2);
            this_dir = -this_dir;
          }
        ddr = initialize_data_dependence_relation (dr1, dr2, loops);
@@ -1373,9 +1371,7 @@ pg_add_dependence_edges (struct graph *rdg, vec<loop_p> loops, int dir,
          {
            if (DDR_REVERSED_P (ddr))
              {
-               data_reference_p tem = dr1;
-               dr1 = dr2;
-               dr2 = tem;
+               std::swap (dr1, dr2);
                this_dir = -this_dir;
              }
            /* Known dependences can still be unordered througout the