Document Intel Silvermont support in invoke.texi

[Igor Zamyatin]

Hi!

Following patch documents Intel Silvermont support.

OK to install?

Thanks,
Igor


Changelog:


2013-06-10  Igor Zamyatin  <igor.zamya...@intel.com>

        * doc/invoke.texi: Document slm.




diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index b7b32f7..e4f1d45 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -13837,6 +13837,10 @@ set support.
 Intel Atom CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3 and SSSE3
 instruction set support.

+@item slm
+Intel Silvermont CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3 and SSSE3,
+SSE4.1, SSE4.2 instruction set support.
+
 @item k6
 AMD K6 CPU with MMX instruction set support.