From: Jan Hubicka <hubicka@ucw.cz>
Date: Wed, 4 May 2016 16:42:12 +0000 (+0200)
Subject: tree-inline.c (expand_call_inline): Fix path dealing with making lhs of call statemen... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=693a9117d0f26a4a7ee07783ac3971641429b03b;p=gcc.git

tree-inline.c (expand_call_inline): Fix path dealing with making lhs of call statement undefined.

	* tree-inline.c (expand_call_inline): Fix path dealing with
	making lhs of call statement undefined.

From-SVN: r235889
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d3d54ec82a5..92da7b52538 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-05-04  Jan Hubicka  <hubicka@ucw.cz>
+
+	* tree-inline.c (expand_call_inline): Fix path dealing with
+	making lhs of call statement undefined.
+
 2016-05-04  Jan Hubicka  <hubicka@ucw.cz>
 
 	* cgraph.c (cgraph_node::call_for_symbol_thunks_and_aliases):
diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c
index 19f202e5371..da233b29c4f 100644
--- a/gcc/tree-inline.c
+++ b/gcc/tree-inline.c
@@ -4708,7 +4708,7 @@ expand_call_inline (basic_block bb, gimple *stmt, copy_body_data *id)
 	{
 	  tree name = gimple_call_lhs (stmt);
 	  tree var = SSA_NAME_VAR (name);
-	  tree def = ssa_default_def (cfun, var);
+	  tree def = var ? ssa_default_def (cfun, var) : NULL;
 
 	  if (def)
 	    {
@@ -4719,6 +4719,11 @@ expand_call_inline (basic_block bb, gimple *stmt, copy_body_data *id)
 	    }
 	  else
 	    {
+	      if (!var)
+		{
+		  tree var = create_tmp_reg_fn (cfun, TREE_TYPE (name), NULL);
+		  SET_SSA_NAME_VAR_OR_IDENTIFIER (name, var);
+		}
 	      /* Otherwise make this variable undefined.  */
 	      gsi_remove (&stmt_gsi, true);
 	      set_ssa_default_def (cfun, var, name);