[gcc r13-4695] docs: document --param=ipa-sra-ptrwrap-growth-factor

[Martin Liska <marxin@gcc.gnu.org>]

https://gcc.gnu.org/g:693638252aae9b36b5b928d7195df6d28bf409d7

commit r13-4695-g693638252aae9b36b5b928d7195df6d28bf409d7
Author: Martin Liska <mliska@suse.cz>
Date:   Wed Dec 14 08:54:32 2022 +0100

    docs: document --param=ipa-sra-ptrwrap-growth-factor
    
    gcc/ChangeLog:
    
            * doc/invoke.texi: Document ipa-sra-ptrwrap-growth-factor.

Diff:
---
 gcc/doc/invoke.texi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 0459714d100..7dc1d45e275 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -15520,6 +15520,11 @@ parameters only when their cumulative size is less or equal to
 @option{ipa-sra-ptr-growth-factor} times the size of the original
 pointer parameter.
 
+@item ipa-sra-ptrwrap-growth-factor
+Additional maximum allowed growth of total size of new parameters
+that ipa-sra replaces a pointer to an aggregate with,
+if it points to a local variable that the caller never writes to.
+
 @item ipa-sra-max-replacements
 Maximum pieces of an aggregate that IPA-SRA tracks.  As a
 consequence, it is also the maximum number of replacements of a formal