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clang diagnostic error: definition of builtin function

See original GitHub issue

When using CPT on a file that eventually includes winnt.h (e.g. by including MFC-Header afxmt.h), I get the following errors

Error while processing C:\foo.cpp.
C:\Program Files (x86)\Windows Kits\8.1\Include\um\winnt.h(5419): error: definition of builtin function '_InterlockedAnd64' [clang-diagnostic-error]
_InterlockedAnd64 (
^
C:\Program Files (x86)\Windows Kits\8.1\Include\um\winnt.h(5492): error: definition of builtin function '_InterlockedOr64' [clang-diagnostic-error]
_InterlockedOr64 (
^
C:\Program Files (x86)\Windows Kits\8.1\Include\um\winnt.h(5512): error: definition of builtin function '_InterlockedXor64' [clang-diagnostic-error]
_InterlockedXor64 (
^
C:\Program Files (x86)\Windows Kits\8.1\Include\um\winnt.h(5532): error: definition of builtin function '_InterlockedIncrement64' [clang-diagnostic-error]
_InterlockedIncrement64 (
^
C:\Program Files (x86)\Windows Kits\8.1\Include\um\winnt.h(5553): error: definition of builtin function '_InterlockedDecrement64' [clang-diagnostic-error]
_InterlockedDecrement64 (
^
C:\Program Files (x86)\Windows Kits\8.1\Include\um\winnt.h(5572): error: definition of builtin function '_InterlockedExchange64' [clang-diagnostic-error]
_InterlockedExchange64 (
^
C:\Program Files (x86)\Windows Kits\8.1\Include\um\winnt.h(5595): error: definition of builtin function '_InterlockedExchangeAdd64' [clang-diagnostic-error]
_InterlockedExchangeAdd64 (
^

I am not sure if these have anything to do with CPT or my individual setup.

I am using

Visual Studio 2022 (17.5.0)
CPT 2023.2.1
LLVM 15.0.7
Windows SDK 8.1

Any ideas what is going wrong here or how to trace down this issue further?

Issue Analytics

State:
Created 7 months ago
Comments:10 (6 by maintainers)

Top GitHub Comments

1reaction

MarcelNehringcommented, May 3, 2023

Hi @mariru27,

thank you for looking into this and implementing a fix.

Unfortunately it seems that it wasn’t the root cause for the ‘definition of builtin function’ problem. I checked it with the v140 toolset and also with the v143 toolset (since we upgraded in the meantime).

Running the command invoked by CPT manually produces the same result.

I did some tests and it seems the problem only occurs when compiling for 32 bit using the Win SDK 8.1 (we are already working on upgrading the SDK version).

0reactions

mariru27commented, May 3, 2023

Hi @MarcelNehring,

You can update Clang Power Tools to v2023.5.0

Thank you for your help, means a lot for our product

Have a nice day, Marina