re PR target/85984 (ICE in create_pseudo_cfg, at dwarf2cfi.c:2874)

	PR target/85984
	* bb-reorder.c (pass_partition_blocks::gate): Return false for
	functions with naked attribute.

	* gcc.target/i386/pr85984.c: New test.

From-SVN: r261037

gcc/ChangeLog

+2018-05-31  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/85984
+	* bb-reorder.c (pass_partition_blocks::gate): Return false for
+	functions with naked attribute.
+
 2018-05-31  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/sse.md (avx_vec_concat<mode>):

gcc/bb-reorder.c

@@ -2928,8 +2928,8 @@ pass_partition_blocks::gate (function *fun)
 {
   /* The optimization to partition hot/cold basic blocks into separate
      sections of the .o file does not work well with linkonce or with
-     user defined section attributes.  Don't call it if either case
-     arises.  */
+     user defined section attributes or with naked attribute.  Don't call
+     it if either case arises.  */
   return (flag_reorder_blocks_and_partition
 	  && optimize
 	  /* See pass_reorder_blocks::gate.  We should not partition if
@@ -2937,6 +2937,7 @@ pass_partition_blocks::gate (function *fun)
 	  && optimize_function_for_speed_p (fun)
 	  && !DECL_COMDAT_GROUP (current_function_decl)
 	  && !lookup_attribute ("section", DECL_ATTRIBUTES (fun->decl))
+	  && !lookup_attribute ("naked", DECL_ATTRIBUTES (fun->decl))
 	  /* Workaround a bug in GDB where read_partial_die doesn't cope
 	     with DIEs with DW_AT_ranges, see PR81115.  */
 	  && !(in_lto_p && MAIN_NAME_P (DECL_NAME (fun->decl))));

gcc/testsuite/ChangeLog

+2018-05-31  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/85984
+	* gcc.target/i386/pr85984.c: New test.
+
 2018-05-31  Martin Sebor  <msebor@redhat.com>
 
 	PR c/82063

gcc/testsuite/gcc.target/i386/pr85984.c

+/* PR target/85984 */
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+int foo (void);
+
+void __attribute__((naked))
+bar (void)
+{
+  if (!foo ())
+    __builtin_abort ();
+}
+
+void
+baz (void)
+{
+  bar ();
+}