remove unused files

[platform/upstream/gcc48.git] / gcc / ipa-prop.c

diff --git a/gcc/ipa-prop.c b/gcc/ipa-prop.c
index 53cd5ed..c62dc68 100644 (file)
--- a/gcc/ipa-prop.c
+++ b/gcc/ipa-prop.c
@@ -678,13 +678,19 @@ parm_ref_data_preserved_p (struct param_analysis_info *parm_ainfo,
   bool modified = false;
   ao_ref refd;
 
-  gcc_checking_assert (gimple_vuse (stmt));
   if (parm_ainfo && parm_ainfo->ref_modified)
     return false;
 
-  ao_ref_init (&refd, ref);
-  walk_aliased_vdefs (&refd, gimple_vuse (stmt), mark_modified, &modified,
-                     NULL);
+  if (optimize)
+    {
+      gcc_checking_assert (gimple_vuse (stmt));
+      ao_ref_init (&refd, ref);
+      walk_aliased_vdefs (&refd, gimple_vuse (stmt), mark_modified, &modified,
+                         NULL);
+    }
+  else
+    modified = true;
+
   if (parm_ainfo && modified)
     parm_ainfo->ref_modified = true;
   return !modified;