docs: port documentation of VRP params

gcc/ChangeLog:

	* doc/invoke.texi: Update documentation based on param.opt file.

gcc/doc/invoke.texi

@@ -15988,15 +15988,9 @@ The maximum number of may-defs we analyze when looking for a must-def
 specifying the dynamic type of an object that invokes a virtual call
 we may be able to devirtualize speculatively.
-@item evrp-sparse-threshold
-Maximum number of basic blocks before EVRP uses a sparse cache.
-
 @item ranger-debug
 Specifies the type of debug output to be issued for ranges.
-@item evrp-switch-limit
-Specifies the maximum number of switch cases before EVRP ignores a switch.
-
 @item unroll-jam-min-percent
 The minimum percentage of memory references that must be optimized
 away for the unroll-and-jam transformation to be considered profitable.
@@ -16055,6 +16049,15 @@ this parameter.  The default value of this parameter is 50.
 @item vect-induction-float
 Enable loop vectorization of floating point inductions.
+@item vrp-sparse-threshold
+Maximum number of basic blocks before VRP uses a sparse bitmap cache.
+
+@item vrp-switch-limit
+Maximum number of outgoing edges in a switch before VRP will not process it.
+
+@item vrp-vector-threshold
+Maximum number of basic blocks for VRP to use a basic cache vector.
+
 @item avoid-fma-max-bits
 Maximum number of bits for which we avoid creating FMAs.