Prevent sharing of commit calls among transactions.

[pf3gnuchains/gcc-fork.git] / gcc / tree-ssa-structalias.c

diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c
index fe0c4e9..08d480a 100644 (file)
--- a/gcc/tree-ssa-structalias.c
+++ b/gcc/tree-ssa-structalias.c
@@ -4484,7 +4484,11 @@ find_func_aliases (gimple origt)
       tree lhsop = gimple_assign_lhs (t);
       tree rhsop = (gimple_num_ops (t) == 2) ? gimple_assign_rhs1 (t) : NULL;
 
-      if (rhsop && AGGREGATE_TYPE_P (TREE_TYPE (lhsop)))
+      if (rhsop && TREE_CLOBBER_P (rhsop))
+       /* Ignore clobbers, they don't actually store anything into
+          the LHS.  */
+       ;
+      else if (rhsop && AGGREGATE_TYPE_P (TREE_TYPE (lhsop)))
        do_structure_copy (lhsop, rhsop);
       else
        {