alias.c: Include tree.h.

	* alias.c: Include tree.h.
	(nonlocal_reference_p, mark_constant_function): New functions.
	* flow.c (life_analysis): Call mark_constant_function.
	* rtl.h (mark_constant_function): Declare it.

From-SVN: r28762

1 files changed, 5 insertions, 0 deletions

diff --git a/gcc/flow.c b/gcc/flow.c
index c7ffe78..3d13baf 100644
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -2087,7 +2087,12 @@ life_analysis (f, nregs, file, remove_dead_code)
 
   /* We want alias analysis information for local dead store elimination.  */
   init_alias_analysis ();
+
   life_analysis_1 (f, nregs, remove_dead_code);
+
+  if (! reload_completed)
+    mark_constant_function ();
+
   end_alias_analysis ();
 
   if (file)