http://llvm.org/bugs/show_bug.cgi?id=17786
Bug ID: 17786
Summary: Incorrect mangling of member function with __restrict
qualifier
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
Test case:
struct Foo
{
void bar() __restrict { }
};
int main()
{
Foo obj;
obj.bar();
return 0;
}
The trunk version of clang (r193937 as of this post) mangles Foo::bar() as
_ZNr3Foo3barEv, but gcc/g++ mangles this as _ZN3Foo3barEv instead. The key
difference is that clang is adding the 'r' due to the __restrict qualifier.
The note about restrict in this C++ ABI document
(http://mentorembedded.github.io/cxx-abi/abi.html#mangle.CV-qualifiers) seems
to indicate that it shouldn't be included in the mangled name since __restrict
isn't used for overloading purposes.
I should also probably note that this problem appears to be fixed in Apple's
version of clang on OS X as of Xcode 5.0 (clang-500.2.75), but versions prior
to this definitely exhibited the same problem.
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