From: Avinash Sonawane <root...@gmail.com>

On Thu, 2022-03-24 at 10:41 +0530, Avinash Sonawane wrote:
> On Wed, 23 Mar 2022 18:33:38 -0400
> David Malcolm <dmalc...@redhat.com> wrote:
>  
> > This is almost ready to push to trunk, but there are a couple of
> > extra
> > tasks needed to be done:
> 
> Done.
> 
> Please find the attached v3 patch and let me know if something needs
> to
> be changed/added. 
> 
> Thanks!

I tweaked the wording: "disables following" to "disables the following",
added references to PR analyzer/103533 to the Subject and ChangeLog,
inspected the generated manpage, and ran it through a full bootstrap.

I've gone ahead and pushed it to trunk as r12-7808-g319ba7e241e7e2:
  
https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=319ba7e241e7e21f9eb481f075310796f13d2035
(the patch I committed follows)

Thanks again!
Dave

gcc/ChangeLog:
        PR analyzer/103533
        * doc/invoke.texi: Document that enabling taint analyzer
        checker disables some warnings from `-fanalyzer`.

Signed-off-by: Avinash Sonawane <root...@gmail.com>
---
 gcc/doc/invoke.texi | 33 +++++++++++++++++++++++++++------
 1 file changed, 27 insertions(+), 6 deletions(-)

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 4da4a1170f5..8b16b35ec12 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -421,14 +421,13 @@ Objective-C and Objective-C++ Dialects}.
 -fanalyzer-checker=@var{name} @gol
 -fno-analyzer-feasibility @gol
 -fanalyzer-fine-grained @gol
--fanalyzer-state-merge @gol
--fanalyzer-state-purge @gol
+-fno-analyzer-state-merge @gol
+-fno-analyzer-state-purge @gol
 -fanalyzer-transitivity @gol
 -fanalyzer-verbose-edges @gol
 -fanalyzer-verbose-state-changes @gol
 -fanalyzer-verbosity=@var{level} @gol
 -fdump-analyzer @gol
--fdump-analyzer-stderr @gol
 -fdump-analyzer-callgraph @gol
 -fdump-analyzer-exploded-graph @gol
 -fdump-analyzer-exploded-nodes @gol
@@ -438,6 +437,7 @@ Objective-C and Objective-C++ Dialects}.
 -fdump-analyzer-feasibility @gol
 -fdump-analyzer-json @gol
 -fdump-analyzer-state-purge @gol
+-fdump-analyzer-stderr @gol
 -fdump-analyzer-supergraph @gol
 -Wno-analyzer-double-fclose @gol
 -Wno-analyzer-double-free @gol
@@ -9659,22 +9659,24 @@ Enabling this option effectively enables the following 
warnings:
 -Wanalyzer-free-of-non-heap @gol
 -Wanalyzer-malloc-leak @gol
 -Wanalyzer-mismatching-deallocation @gol
--Wanalyzer-possible-null-argument @gol
--Wanalyzer-possible-null-dereference @gol
 -Wanalyzer-null-argument @gol
 -Wanalyzer-null-dereference @gol
+-Wanalyzer-possible-null-argument @gol
+-Wanalyzer-possible-null-dereference @gol
 -Wanalyzer-shift-count-negative @gol
 -Wanalyzer-shift-count-overflow @gol
 -Wanalyzer-stale-setjmp-buffer @gol
+@ignore
 -Wanalyzer-tainted-allocation-size @gol
 -Wanalyzer-tainted-array-index @gol
 -Wanalyzer-tainted-divisor @gol
 -Wanalyzer-tainted-offset @gol
 -Wanalyzer-tainted-size @gol
+@end ignore
 -Wanalyzer-unsafe-call-within-signal-handler @gol
 -Wanalyzer-use-after-free @gol
--Wanalyzer-use-of-uninitialized-value @gol
 -Wanalyzer-use-of-pointer-in-stale-stack-frame @gol
+-Wanalyzer-use-of-uninitialized-value @gol
 -Wanalyzer-write-to-const @gol
 -Wanalyzer-write-to-string-literal @gol
 }
@@ -10015,6 +10017,25 @@ such as the @code{taint} checker that implements
 @option{-Wanalyzer-tainted-array-index}, and this option is required
 to enable them.
 
+@emph{Note:} currently, @option{-fanalyzer-checker=taint} disables the
+following warnings from @option{-fanalyzer}:
+
+@gccoptlist{ @gol
+-Wanalyzer-double-fclose @gol
+-Wanalyzer-double-free @gol
+-Wanalyzer-exposure-through-output-file @gol
+-Wanalyzer-file-leak @gol
+-Wanalyzer-free-of-non-heap @gol
+-Wanalyzer-malloc-leak @gol
+-Wanalyzer-mismatching-deallocation @gol
+-Wanalyzer-null-argument @gol
+-Wanalyzer-null-dereference @gol
+-Wanalyzer-possible-null-argument @gol
+-Wanalyzer-possible-null-dereference @gol
+-Wanalyzer-unsafe-call-within-signal-handler @gol
+-Wanalyzer-use-after-free @gol
+}
+
 @item -fno-analyzer-feasibility
 @opindex fanalyzer-feasibility
 @opindex fno-analyzer-feasibility
-- 
2.26.3

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