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-rw-r--r--gcc/cgraph.c27
1 files changed, 22 insertions, 5 deletions
diff --git a/gcc/cgraph.c b/gcc/cgraph.c
index 1baed25..8914569 100644
--- a/gcc/cgraph.c
+++ b/gcc/cgraph.c
@@ -468,6 +468,27 @@ cgraph_node_remove_callers (struct cgraph_node *node)
node->callers = NULL;
}
+/* Release memory used to represent body of function NODE. */
+
+void
+cgraph_release_function_body (struct cgraph_node *node)
+{
+ if (DECL_STRUCT_FUNCTION (node->decl)
+ && DECL_STRUCT_FUNCTION (node->decl)->gimple_df)
+ {
+ tree old_decl = current_function_decl;
+ push_cfun (DECL_STRUCT_FUNCTION (node->decl));
+ current_function_decl = node->decl;
+ delete_tree_ssa ();
+ delete_tree_cfg_annotations ();
+ current_function_decl = old_decl;
+ pop_cfun();
+ }
+ DECL_SAVED_TREE (node->decl) = NULL;
+ DECL_STRUCT_FUNCTION (node->decl) = NULL;
+ DECL_INITIAL (node->decl) = error_mark_node;
+}
+
/* Remove the node from cgraph. */
void
@@ -541,11 +562,7 @@ cgraph_remove_node (struct cgraph_node *node)
}
if (kill_body && flag_unit_at_a_time)
- {
- DECL_SAVED_TREE (node->decl) = NULL;
- DECL_STRUCT_FUNCTION (node->decl) = NULL;
- DECL_INITIAL (node->decl) = error_mark_node;
- }
+ cgraph_release_function_body (node);
node->decl = NULL;
if (node->call_site_hash)
{