[gcc r12-4406] Add forgotten documentation of param ipa-cp-recursive-freq-factor

[gcc r12-4406] Add forgotten documentation of param ipa-cp-recursive-freq-factor

[Martin Jambor]

https://gcc.gnu.org/g:aa62b199f174064d7ffa5d018e7779f5575f7be9

commit r12-4406-gaa62b199f174064d7ffa5d018e7779f5575f7be9
Author: Martin Jambor <mjambor@suse.cz>
Date:   Thu Oct 14 17:00:35 2021 +0200

    Add forgotten documentation of param ipa-cp-recursive-freq-factor
    
    Martin Liška has noticed that I forgot to document the recently added
    parameter in the invoke.texi documentation.  This patch fixes it.
    
    Tested by running make info and make pdf and examining the output.
    
    gcc/ChangeLog:
    
    2021-10-14  Martin Jambor  <mjambor@suse.cz>
    
            * doc/invoke.texi (Optimize Options): Add entry for
            ipa-cp-recursive-freq-factor.

Diff:
---
 gcc/doc/invoke.texi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 03234c887dc..64347b1ceba 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -14246,6 +14246,10 @@ Maximum depth of recursive cloning for self-recursive function.
 Recursive cloning only when the probability of call being executed exceeds
 the parameter.
 
+@item ipa-cp-recursive-freq-factor
+The number of times interprocedural copy propagation expects recursive
+functions to call themselves.
+
 @item ipa-cp-recursion-penalty
 Percentage penalty the recursive functions will receive when they
 are evaluated for cloning.