From: hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 9 Aug 2013 11:44:27 +0000 (+0000)
Subject: 	* lto-streamer-out.c (output_function): Renumber PHIs.
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=62732f86aad129e1e50c0a919e5094a57c2697ac;p=thirdparty%2Fgcc.git

	* lto-streamer-out.c (output_function): Renumber PHIs.
	* lto-streamer-in.c (input_function): Likewise.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@201627 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8d80204803eb..ef8197630c41 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2013-08-09  Jan Hubicka  <jh@suse.cz>
+
+	* lto-streamer-out.c (output_function): Renumber PHIs.
+	* lto-streamer-in.c (input_function): Likewise.
+
 2013-08-09  James Greenhalgh  <james.greenhalgh@arm.com>
 
 	* config/aarch64/aarch64-simd-builtins.def (get_lane_signed): Remove.
diff --git a/gcc/lto-streamer-in.c b/gcc/lto-streamer-in.c
index 70a87d1738ba..9dc8438aa477 100644
--- a/gcc/lto-streamer-in.c
+++ b/gcc/lto-streamer-in.c
@@ -908,6 +908,11 @@ input_function (tree fn_decl, struct data_in *data_in,
   FOR_ALL_BB (bb)
     {
       gimple_stmt_iterator gsi;
+      for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi))
+	{
+	  gimple stmt = gsi_stmt (gsi);
+	  gimple_set_uid (stmt, inc_gimple_stmt_max_uid (cfun));
+	}
       for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
 	{
 	  gimple stmt = gsi_stmt (gsi);
@@ -917,7 +922,14 @@ input_function (tree fn_decl, struct data_in *data_in,
   stmts = (gimple *) xcalloc (gimple_stmt_max_uid (fn), sizeof (gimple));
   FOR_ALL_BB (bb)
     {
-      gimple_stmt_iterator bsi = gsi_start_bb (bb);
+      gimple_stmt_iterator bsi = gsi_start_phis (bb);
+      while (!gsi_end_p (bsi))
+	{
+	  gimple stmt = gsi_stmt (bsi);
+	  gsi_next (&bsi);
+	  stmts[gimple_uid (stmt)] = stmt;
+	}
+      bsi = gsi_start_bb (bb);
       while (!gsi_end_p (bsi))
 	{
 	  gimple stmt = gsi_stmt (bsi);
diff --git a/gcc/lto-streamer-out.c b/gcc/lto-streamer-out.c
index 5649bd8443e6..ea0ff177c47e 100644
--- a/gcc/lto-streamer-out.c
+++ b/gcc/lto-streamer-out.c
@@ -1792,12 +1792,32 @@ output_function (struct cgraph_node *node)
       FOR_ALL_BB (bb)
 	{
 	  gimple_stmt_iterator gsi;
+	  for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi))
+	    {
+	      gimple stmt = gsi_stmt (gsi);
+
+	      /* Virtual PHIs are not going to be streamed.  */
+	      if (!virtual_operand_p (gimple_phi_result (stmt)))
+	        gimple_set_uid (stmt, inc_gimple_stmt_max_uid (cfun));
+	    }
 	  for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
 	    {
 	      gimple stmt = gsi_stmt (gsi);
 	      gimple_set_uid (stmt, inc_gimple_stmt_max_uid (cfun));
 	    }
 	}
+      /* To avoid keeping duplicate gimple IDs in the statements, renumber
+	 virtual phis now.  */
+      FOR_ALL_BB (bb)
+	{
+	  gimple_stmt_iterator gsi;
+	  for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi))
+	    {
+	      gimple stmt = gsi_stmt (gsi);
+	      if (virtual_operand_p (gimple_phi_result (stmt)))
+	        gimple_set_uid (stmt, inc_gimple_stmt_max_uid (cfun));
+	    }
+	}
 
       /* Output the code for the function.  */
       FOR_ALL_BB_FN (bb, fn)