gcc/ada/

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

diff --git a/gcc/tree-ssa-reassoc.c b/gcc/tree-ssa-reassoc.c
index be68331..e4e7db6 100644 (file)
--- a/gcc/tree-ssa-reassoc.c
+++ b/gcc/tree-ssa-reassoc.c
@@ -1771,6 +1771,18 @@ reassociate_bb (basic_block bb)
                {
                  gsi_remove (&gsi, true);
                  release_defs (stmt);
+                 /* We might end up removing the last stmt above which
+                    places the iterator to the end of the sequence.
+                    Reset it to the last stmt in this case which might
+                    be the end of the sequence as well if we removed
+                    the last statement of the sequence.  In which case
+                    we need to bail out.  */
+                 if (gsi_end_p (gsi))
+                   {
+                     gsi = gsi_last_bb (bb);
+                     if (gsi_end_p (gsi))
+                       break;
+                   }
                }
              continue;
            }