diff mbox series

[v2,3/8] decodetree: Document the usefulness of argument sets

Message ID 20190228052432.32571-4-richard.henderson@linaro.org
State Superseded
Headers show
Series decodetree enhancements | expand

Commit Message

Richard Henderson Feb. 28, 2019, 5:24 a.m. UTC
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 docs/devel/decodetree.rst | 7 +++++++
 1 file changed, 7 insertions(+)

-- 
2.17.2

Comments

Bastian Koppelmann Feb. 28, 2019, 8:02 a.m. UTC | #1
On 2/28/19 6:24 AM, Richard Henderson wrote:
> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>

> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

> ---

>   docs/devel/decodetree.rst | 7 +++++++

>   1 file changed, 7 insertions(+)


Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>


Cheers,

Bastian
diff mbox series

Patch

diff --git a/docs/devel/decodetree.rst b/docs/devel/decodetree.rst
index d9be30b2db..62cb7f687c 100644
--- a/docs/devel/decodetree.rst
+++ b/docs/devel/decodetree.rst
@@ -69,6 +69,13 @@  with each of the fields being one of the member arguments.
 If ``!extern`` is specified, the backing structure is assumed
 to have been already declared, typically via a second decoder.
 
+Argument sets are useful when one wants to define helper functions
+for the translator functions that can perform operations on a common
+set of arguments.  This can ensure, for instance, that the ``AND``
+pattern and the ``OR`` pattern put their operands into the same named
+structure, so that a common ``gen_logic_insn`` may be able to handle
+the operations common between the two.
+
 Argument set examples::
 
   &reg3       ra rb rc