docs: document evrp-sparse-threshold param

gcc/ChangeLog:

	* doc/invoke.texi: Document new param evrp-sparse-threshold.

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 04048cd8332b2023200f781fb9dfabffb0dcafbf..6063e466c13ac87e3ac5850e755351e3577bf077 100644 (file)
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -14207,6 +14207,9 @@ we may be able to devirtualize speculatively.
 The maximum number of assertions to add along the default edge of a switch
 statement during VRP.
 
+@item evrp-sparse-threshold
+Maximum number of basic blocks before EVRP uses a sparse cache.
+
 @item evrp-mode
 Specifies the mode Early VRP should operate in.