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From: "Martin Liška" <>
Cc: Gerald Pfeifer <>, Jakub Jelinek <>
Subject: [PATCH] docs: document sanitizers can trigger warnings
Date: Wed, 26 Oct 2022 13:09:18 +0200	[thread overview]
Message-ID: <> (raw)

	PR sanitizer/107298


	* doc/invoke.texi: Document sanitizers can trigger warnings.
 gcc/doc/invoke.texi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 64f77e8367a..1ffbba16a72 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -16460,6 +16460,10 @@ by this option.
 @end table
+Note the enabled sanitizer options tend to increase a false-positive rate
+of selected warnings, most notably @option{-Wmaybe-uninitialized}.
+And thus we recommend to disable @option{-Werror}.
 While @option{-ftrapv} causes traps for signed overflows to be emitted,
 @option{-fsanitize=undefined} gives a diagnostic message.
 This currently works only for the C family of languages.

             reply	other threads:[~2022-10-26 11:09 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-26 11:09 Martin Liška [this message]
2022-10-27 22:52 ` Jeff Law
2022-10-28 18:45 ` Eric Gallager
2022-11-03 12:32 ` Gerald Pfeifer
2022-11-07  8:55   ` Martin Liška

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