https://bugs.llvm.org/show_bug.cgi?id=45213
Bug ID: 45213
Summary: clang-cl gives "definition with same mangled name" for
lambdas defined as inline const at global scope
Product: new-bugs
Version: 9.0
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
clang-cl version: 9.0.0 (tags/RELEASE_900/finl)
Target: x86_64-pc-windows-msvc
The following code results in the error:
inline const auto a = [](auto x) { return 0; };
inline const auto b = [](auto x) { return 1; };
int main() { return a(1) + b(1); }
clang_cl_mangling_test.cc(2,23): error: definition with same mangled name
'??$?RH@<lambda_1>@@QEBA?A?<auto>@@H@Z' as another definition
inline const auto b = [](auto x) { return 1; };
^
clang_cl_mangling_test.cc(1,23): note: previous definition is here
inline const auto a = [](auto x) { return 0; };
I have also observed an even worse variant of what I believe to be the same
problem, where compilation is successful but the two different lambdas get
assigned the same symbol and the linker just picks one of them arbitrarily,
leading to incorrect behavior at run time. However, I don't have a short
reproduction of that variant.
--
You are receiving this mail because:
You are on the CC list for the bug._______________________________________________
llvm-bugs mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
