[gcc(refs/users/ppalka/heads/libstdcxx-constrained-algos)] invoke.texi: update -fdiagnostics-show-cwe for analyzer

[Patrick Palka]

https://gcc.gnu.org/g:ab7c7b46c35ed1be68d4c020a2f20ee96f68b64b

commit ab7c7b46c35ed1be68d4c020a2f20ee96f68b64b
Author: David Malcolm <dmalcolm@redhat.com>
Date:   Wed Dec 18 13:27:49 2019 -0500

    invoke.texi: update -fdiagnostics-show-cwe for analyzer
    
    gcc/ChangeLog:
    	* doc/invoke.texi (-fdiagnostics-show-cwe): Add note that some of
    	the analyzer options provide CWE identifiers.

Diff:
---
 gcc/ChangeLog       | 5 +++++
 gcc/doc/invoke.texi | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2837364..4da4d04 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
 2020-01-14  David Malcolm  <dmalcolm@redhat.com>
 
+	* doc/invoke.texi (-fdiagnostics-show-cwe): Add note that some of
+	the analyzer options provide CWE identifiers.
+
+2020-01-14  David Malcolm  <dmalcolm@redhat.com>
+
 	* tree-diagnostic-path.cc (path_summary::event_range::print):
 	When testing for UNKNOWN_LOCATION, look through ad-hoc wrappers
 	using get_pure_location.
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 180cde3..d8b94d8 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -4076,7 +4076,8 @@ the vertical bars and the ``char *'' and ``long int'' text).
 @opindex fdiagnostics-show-cwe
 Diagnostic messages can optionally have an associated
 @url{https://cwe.mitre.org/index.html, CWE} identifier.
-GCC itself does not do this for any of its diagnostics, but plugins may do so.
+GCC itself only provides such metadata for some of the @option{-fanalyzer}
+diagnostics.  GCC plugins may also provide diagnostics with such metadata.
 By default, if this information is present, it will be printed with
 the diagnostic.  This option suppresses the printing of this metadata.