http://llvm.org/bugs/show_bug.cgi?id=10063
Summary: Problems with 'switch' and destructors in control flow
graph
Product: clang
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: C++
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
Created an attachment (id=6673)
--> (http://llvm.org/bugs/attachment.cgi?id=6673)
test cases
The attached file has a number of testcases which should not trigger
-Wreturn-type. In all cases, control enters a switch statement with no cases
but 'default', and the default case instantiates an object with a noreturn
destructor. We get it right in a few cases, but not all:
$ clang -fsyntax-only -Wreturn-type ~/testcases/noreturn_dtor_switch.cc
/home/matthewbg/testcases/noreturn_dtor_switch.cc:24:1: warning: control
reaches end of non-void function [-Wreturn-type]
} // 2
^
/home/matthewbg/testcases/noreturn_dtor_switch.cc:46:1: warning: control
reaches end of non-void function [-Wreturn-type]
} // 5
^
/home/matthewbg/testcases/noreturn_dtor_switch.cc:54:1: warning: control
reaches end of non-void function [-Wreturn-type]
} // 6
^
/home/matthewbg/testcases/noreturn_dtor_switch.cc:62:1: warning: control
reaches end of non-void function [-Wreturn-type]
} // 7
^
/home/matthewbg/testcases/noreturn_dtor_switch.cc:70:1: warning: control
reaches end of non-void function [-Wreturn-type]
} // 8
^
5 warnings generated.
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