re PR target/41985 (Internal compiler error reported.)

	PR target/41985
	* config/i386/i386.c (get_some_local_dynamic_name): Don't assert
	function contains at least one local dynamic name.
	(print_operand) <case '&'>: Instead output operand lossage diagnostics
	here if that happens.

	* gcc.target/i386/pr41985.c: New test.

From-SVN: r154014

gcc/ChangeLog

+2009-11-08  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/41985
+	* config/i386/i386.c (get_some_local_dynamic_name): Don't assert
+	function contains at least one local dynamic name.
+	(print_operand) <case '&'>: Instead output operand lossage diagnostics
+	here if that happens.
+
 2009-11-08  Zbigniew Chamski  <zbigniew.chamski@gmail.com>
 	    Joern Rennecke  <amylaar@spamcop.net>
 

gcc/config/i386/i386.c

@@ -11301,7 +11301,7 @@ get_some_local_dynamic_name (void)
 	&& for_each_rtx (&PATTERN (insn), get_some_local_dynamic_name_1, 0))
       return cfun->machine->some_ld_name;
 
-  gcc_unreachable ();
+  return NULL;
 }
 
 /* Meaning of CODE:
@@ -11353,8 +11353,15 @@ print_operand (FILE *file, rtx x, int code)
 	  return;
 
 	case '&':
-	  assemble_name (file, get_some_local_dynamic_name ());
-	  return;
+	  {
+	    const char *name = get_some_local_dynamic_name ();
+	    if (name == NULL)
+	      output_operand_lossage ("'%%&' used without any "
+				      "local dynamic TLS references");
+	    else
+	      assemble_name (file, name);
+	    return;
+	  }
 
 	case 'A':
 	  switch (ASSEMBLER_DIALECT)

gcc/testsuite/ChangeLog

+2009-11-08  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/41985
+	* gcc.target/i386/pr41985.c: New test.
+
 2009-11-08  Richard Guenther  <rguenther@suse.de>
 
 	* gcc.dg/torture/pta-escape-1.c: New testcase.

gcc/testsuite/gcc.target/i386/pr41985.c

+/* PR target/41985 */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+int
+main ()
+{
+  int i;
+  asm volatile ("# %&": : "g" (i));	/* { dg-error "used without any local dynamic TLS references" } */
+  return 0;
+}