[PATCH, PR 48601] cgraph_get_create_node in emultls.c

[Martin Jambor]

Hi,

lower_emutls_function_body in emultls.c should use
cgraph_get_create_node to create call graph nodes if need be because
it is introducing TLS builtin decls into IL.

I have bootstrapped and tested this on x86_64-linux (where the bug
does not happen) and in bugzilla it has been confirmed it fixes the
issue.  It is rather straight-forward and was pre-approved on IRC by
Honza so I am about to commit it now.  Testcases are already in the
testsuite.

Thanks,

Martin



2011-04-15  Martin Jambor  <mjam...@suse.cz>

        PR middle-end/48601
        * tree-emutls.c (lower_emutls_function_body): Call
        cgraph_get_create_node instead of cgraph_get_node.  Do not assert the
        result is non-NULL.

Index: src/gcc/tree-emutls.c
===================================================================
--- src.orig/gcc/tree-emutls.c
+++ src/gcc/tree-emutls.c
@@ -619,8 +619,9 @@ lower_emutls_function_body (struct cgrap
 
   d.cfun_node = node;
   d.builtin_decl = built_in_decls[BUILT_IN_EMUTLS_GET_ADDRESS];
-  d.builtin_node = cgraph_get_node (d.builtin_decl);
-  gcc_checking_assert (d.builtin_node);
+  /* This is where we introduce the declaration to the IL and so we have to
+     create a node for it.  */
+  d.builtin_node = cgraph_get_create_node (d.builtin_decl);
 
   FOR_EACH_BB (d.bb)
     {