PR sanitizer/107298
gcc/ChangeLog:
* 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.
--
2.38.0
