Daily bump.

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

diff --git a/gcc/tree-ssa-pre.c b/gcc/tree-ssa-pre.c
index ac676cd..18c75d2 100644 (file)
--- a/gcc/tree-ssa-pre.c
+++ b/gcc/tree-ssa-pre.c
@@ -24,10 +24,11 @@ along with GCC; see the file COPYING3.  If not see
 #include "system.h"
 #include "coretypes.h"
 #include "tm.h"
-#include "ggc.h"
 #include "tree.h"
 #include "basic-block.h"
 #include "diagnostic.h"
+#include "tree-pretty-print.h"
+#include "gimple-pretty-print.h"
 #include "tree-inline.h"
 #include "tree-flow.h"
 #include "gimple.h"
@@ -36,7 +37,6 @@ along with GCC; see the file COPYING3.  If not see
 #include "fibheap.h"
 #include "hashtab.h"
 #include "tree-iterator.h"
-#include "real.h"
 #include "alloc-pool.h"
 #include "obstack.h"
 #include "tree-pass.h"
@@ -4347,6 +4347,10 @@ eliminate (void)
 
          remove_phi_node (&gsi, false);
 
+         if (!bitmap_bit_p (inserted_exprs, SSA_NAME_VERSION (res))
+             && TREE_CODE (sprime) == SSA_NAME)
+           gimple_set_plf (SSA_NAME_DEF_STMT (sprime), NECESSARY, true);
+
          if (!useless_type_conversion_p (TREE_TYPE (res), TREE_TYPE (sprime)))
            sprime = fold_convert (TREE_TYPE (res), sprime);
          stmt = gimple_build_assign (res, sprime);