[PATCH] D39543: [analyzer] Document the issue hash debugging facility

Gábor Horváth via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Thu Nov 2 06:05:54 PDT 2017


xazax.hun updated this revision to Diff 121290.
xazax.hun marked 2 inline comments as done.

https://reviews.llvm.org/D39543

Files:
  docs/analyzer/DebugChecks.rst


Index: docs/analyzer/DebugChecks.rst
===================================================================
--- docs/analyzer/DebugChecks.rst
+++ docs/analyzer/DebugChecks.rst
@@ -242,6 +242,19 @@
       clang_analyzer_printState(); // Read the stderr!
     }
 
+- ``void clang_analyzer_hashDump(int);``
+
+  The analyzer can generate a hash to identify reports. To debug what information
+  is used to calculate this hash it is possible to dump the hashed string as a
+  warning of an arbitrary expression using the function above.
+
+  Example usage::
+
+    void foo() {
+      int x = 1;
+      clang_analyzer_hashDump(x); // expected-warning{{hashed string for x}}
+    }
+
 Statistics
 ==========
 


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