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: r211002
This commit is contained in:
Georg-Johann Lay 2014-05-28 08:50:18 +00:00 committed by Georg-Johann Lay
parent 687eed0efa
commit 59add9e9a9
2 changed files with 8 additions and 0 deletions

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@ -1,3 +1,9 @@
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.
2014-05-23 Richard Biener <rguenther@suse.de>
Backport from mainline

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@ -375,6 +375,8 @@ 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