re PR target/61044 (Computed goto on AVR fails to use word-addressing)

	PR target/61044
	* doc/extend.texi (Local Labels): Note that label differences are
	not supported for AVR.

From-SVN: r210999

gcc/ChangeLog

+2014-05-28  Georg-Johann Lay  <avr@gjlay.de>
+
+	PR target/61044
+	* doc/extend.texi (Local Labels): Note that label differences are
+	not supported for AVR.
+
 2014-05-27  Andrew Pinski  <apinski@cavium.com>
 
 	* config/aarch64/aarch64.md (stack_protect_set_<mode>):

gcc/doc/extend.texi

@@ -373,6 +373,8 @@ goto *(&&foo + array[i]);
 This is more friendly to code living in shared libraries, as it reduces
 the number of dynamic relocations that are needed, and by consequence,
 allows the data to be read-only.
+This alternative with label differences is not supported for the AVR target,
+please use the first approach for AVR programs.
 
 The @code{&&foo} expressions for the same label might have different
 values if the containing function is inlined or cloned.  If a program