[PATCH] doc: Document arm_v8_1m_main_cde_mve_fp

[Christophe Lyon]

The arm_v8_1m_main_cde_mve_fp family of effective targets was not
documented when it was introduced.

2023-07-07  Christophe Lyon  <christophe.lyon@linaro.org>

	gcc/
	* doc/sourcebuild.texi (arm_v8_1m_main_cde_mve_fp): Document.
---
 gcc/doc/sourcebuild.texi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index 526020c7511..03fb2394705 100644
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -2190,6 +2190,12 @@ ARM target supports options to generate instructions from ARMv8.1-M with
 the Custom Datapath Extension (CDE) and M-Profile Vector Extension (MVE).
 Some multilibs may be incompatible with these options.
 
+@item arm_v8_1m_main_cde_mve_fp
+ARM target supports options to generate instructions from ARMv8.1-M
+with the Custom Datapath Extension (CDE) and M-Profile Vector
+Extension (MVE) with floating-point support.  Some multilibs may be
+incompatible with these options.
+
 @item arm_pacbti_hw
 Test system supports executing Pointer Authentication and Branch Target
 Identification instructions.
-- 
2.34.1