http://llvm.org/bugs/show_bug.cgi?id=17538
Bug ID: 17538
Summary: Invalid analysis path
Product: clang
Version: unspecified
Hardware: Macintosh
OS: MacOS X
Status: NEW
Severity: normal
Priority: P
Component: Static Analyzer
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 11357
--> http://llvm.org/bugs/attachment.cgi?id=11357&action=edit
Source showing problem
Version 275 of the Mac OS X checker gives an incorrect "null dereference" error
on the attached source. Just run "checker-275/scan-build c++ -c
invalidpath.cpp"
and look at the path it analyzed.
It took a path where retValue.Success was false, but then immediately went down
a
patch where it was true, which is impossible.
The really weird part is that if you swap the first 2 lines in the "foo"
function, the error isn't reported.
Another weirdness is that retValue is initialized in such a way that
retValue.Success is true so that the path where it assumed it was false is not
possible either.
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