* [pushed] doc: add notes about limitations of -fanalyzer
@ 2023-02-01 2:24 David Malcolm
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From: David Malcolm @ 2023-02-01 2:24 UTC (permalink / raw)
To: gcc-patches; +Cc: David Malcolm
Successfully bootstrapped & regrtested on x86_64-pc-linux-gnu.
Pushed to trunk as r13-5613-ga90316c6ceddfb.
gcc/ChangeLog:
* doc/invoke.texi (Static Analyzer Options): Add notes about
limitations of -fanalyzer.
Signed-off-by: David Malcolm <dmalcolm@redhat.com>
---
gcc/doc/invoke.texi | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 06d77983e30..ddeeea5ccb4 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -10064,6 +10064,13 @@ code, and issues warnings for problems found on them.
This analysis is much more expensive than other GCC warnings.
+In technical terms, it performs coverage-guided symbolic execution of
+the code being compiled. It is neither sound nor complete: it can
+have false positives and false negatives. It is a bug-finding tool,
+rather than a tool for proving program correctness.
+
+The analyzer is only suitable for use on C code in this release.
+
Enabling this option effectively enables the following warnings:
@gccoptlist{ @gol
--
2.26.3
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