[HIPIFY][Windows][VS][build][failure] clang/Driver/Options.inc(66,1): error C2365: 'clang::driver::options::OPT_': redefinition; previous definition was 'enumerator' #1021
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emankov
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…occurred on VS 2022 with ToT clang 18.0.0git [Synopsis] + Root cause is LLVM's change [Driver] Refactor to use llvm Option's new Visibility flags (SHA-1: 9478f661c26fbc22491218477917df5d8d73c51c) + But LLVM/clang itself is built correctly by VS 2022 [Solution] + Explicit setting of `UseStandardPreprocessor` (`/Zc:preprocessor`) eliminates the preprocessor's macro redefinition error [ToDo] + Check hipify-clang builds by MSVS 2017 and 2019 against ToT LLVM (18.0.0git), LLVM 17.0.0-preview, and LLVM 16.0.x
emankov
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[HIPIFY][#1021][build][MSVS][fix][partial] Fix for `error C2365` occurred on VS 2022 with ToT clang 18.0.0git
emankov
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…ror C2365` occurred on VS 2019 with ToT clang 18.0.0git + Widen the range of `MSVC_VERSION` from 1930 (initial version of VS 2022 17.0.0) to 1920 (initial version of VS 2019 16.0.0) + [Reason] Conforming preprocessor is needed for LLVM 18.0.0git on VS 2019 as well + [Details] https://learn.microsoft.com/en-us/cpp/preprocessor/preprocessor-experimental-overview?view=msvc-170 https://learn.microsoft.com/en-us/cpp/preprocessor/preprocessor-experimental-overview?view=msvc-160
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Occurred only on Windows during building hipify-clang by Visual Studios 2022 (17.7.3) and 2019 (16.11.29) against ToT LLVM 18.0.0git.
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