http://llvm.org/bugs/show_bug.cgi?id=15595
Bug ID: 15595
Summary: '-Winvalid-return' triggers warning for destructor
with 'noreturn' attribute
Product: clang
Version: 3.2
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Static Analyzer
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Compiling a class with a destructor with the 'noreturn' attribute causes a
warning with the -Winvalid-noreturn flag. I compile the following code snippet
with clang-3.2 and the '-Winvalid-return' flag:
class Test {
public:
Test() {}
__attribute__((noreturn)) ~Test() {}
};
compile error:
test.cpp:4:38: warning: function declared 'noreturn' should not return
[-Winvalid-noreturn]
__attribute__((noreturn)) ~Test() {}
^
1 warning generated.
I came across this issue when trying to debug an apparent false positive
dereference non-null static analysis check. It seems that clang doesn't detect
that it can eliminate a path with a local variable instance of a class with a
'noreturn' destructor.
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