re PR lto/64043 (ICE (segfault) with LTO: in tree_check/tree.h:2758…

re PR lto/64043 (ICE (segfault) with LTO: in tree_check/tree.h:2758 get_binfo_at_offset/tree.c:11914)


	PR lto/64043
	* gcc.dg/lto/20110201-1_0.c: New testcase.

	* tree-streamer.c (preload_common_nodes): Skip preloading
	of main_identifier_node, pid_type and optimization/option nodes.

From-SVN: r218767

gcc/ChangeLog

+2014-12-15  Jan Hubicka  <hubicka@ucw.cz>
+
+	PR lto/64043
+	* tree-streamer.c (preload_common_nodes): Skip preloading
+	of main_identifier_node, pid_type and optimization/option nodes.
+
 2014-12-15  Vladimir Makarov  <vmakarov@redhat.com>
 
 	PR rtl-optimization/63397
@@ -94,6 +100,16 @@
 
 2014-12-14  Jan Hubicka  <hubicka@ucw.cz>
 
+	PR ipa/61602
+	* cgraph.h (ipa_discover_readonly_nonaddressable_vars): Return bool.
+	* ipa.c (set_writeonly_bit): Track if reference was removed.
+	(ipa_discover_readonly_nonaddressable_vars): Return true if any
+	references was removed.
+	* ipa-reference.c (propagate): Return TODO_remove_functions if
+	reference was removed.
+
+2014-12-14  Jan Hubicka  <hubicka@ucw.cz>
+
 	* ipa.c (process_references): Fix conditoinal on flag_optimize
 
 2014-12-14  Jan Hubicka  <hubicka@ucw.cz>

gcc/testsuite/ChangeLog

+2014-12-15  Jan Hubicka  <hubicka@ucw.cz>
+
+	PR lto/64043
+	* gcc.dg/lto/20110201-1_0.c: New testcase.
+
 2014-12-15  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/64316

gcc/testsuite/gcc.dg/lto/20110201-1_0.c

 /* { dg-lto-do run } */
 /* { dg-lto-options { { -O0 -flto } } } */
-/* { dg-extra-ld-options "-O2 -ffast-math -fuse-linker-plugin" } */
 /* { dg-require-linker-plugin "" } */
 
 /* We require a linker plugin because otherwise we'd need to link
@@ -9,7 +8,7 @@
    which does not have folded cabs.  */
 
 double cabs(_Complex double);
-double __attribute__((used))
+double __attribute__((used)) __attribute__ ((optimize ("O2,fast-math")))
 foo (_Complex double x, int b)
 {
   if (b)

gcc/tree-streamer.c

@@ -324,7 +324,18 @@ preload_common_nodes (struct streamer_tree_cache_d *cache)
     /* Skip boolean type and constants, they are frontend dependent.  */
     if (i != TI_BOOLEAN_TYPE
 	&& i != TI_BOOLEAN_FALSE
-	&& i != TI_BOOLEAN_TRUE)
+	&& i != TI_BOOLEAN_TRUE
+	/* MAIN_IDENTIFIER is not always initialized by Fortran FE.  */
+	&& i != TI_MAIN_IDENTIFIER
+	/* PID_TYPE is initialized only by C family front-ends.  */
+	&& i != TI_PID_TYPE
+	/* Skip optimization and target option nodes; they depend on flags.  */
+	&& i != TI_OPTIMIZATION_DEFAULT
+	&& i != TI_OPTIMIZATION_CURRENT
+	&& i != TI_TARGET_OPTION_DEFAULT
+	&& i != TI_TARGET_OPTION_CURRENT
+	&& i != TI_CURRENT_TARGET_PRAGMA
+	&& i != TI_CURRENT_OPTIMIZE_PRAGMA)
       record_common_node (cache, global_trees[i]);
 }