http://llvm.org/bugs/show_bug.cgi?id=21977
Bug ID: 21977
Summary: invalid codgen for static var in inline function that
is constant in some TU but not in others
Product: clang
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
Both clang and gcc have problems with these tests.
In the first one, if it is compiled as
$CXX -c test1a.cpp -fPIC -O2
$CXX -c test1b.cpp -fPIC
$CXX test1b.o test1a.o -o t1
the resulting program will segfault trying to write to constant memory.
On the second test, if compiled as
$CXX -c test2a.cpp -fPIC -O2
$CXX -c test2b.cpp -fPIC
$CXX test2a.o test2b.o -o t2
it will return the wrong value since the linker will keep the zero initialized
x but the inlined f will think that x is constant and doesn't need
initialization.
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