llvm-msvc

llvm-msvc is a compiler based LLVM that is not restricted by MSVC. The goal is to have the same experience as MSVC on Windows. You can use naked functions anywhere, as well as add custom support such as obfuscation.

Features:

• SEH support.
• Compatible with MSVC syntax as much as possible.
• Windows Driver support.(Now only X64)
• Intrinsic support.
• Naked X64 inline asm support.
• Support multiple cores compilation.
• Support /MP when precompiled headers are present.

FAQ

Why do we make this project?

• Clang uses the GCC standard, MSVC has its own special syntax.
• Some of the code is rather hacky. Unable to submit to official.
• Waiting for official fix is ​​too long.

How to compile?

X86：clang+lld+debug
    
mkdir build-debug-64
pushd build-debug-64
cmake .. -G "Visual Studio 17 2022" -A X64 -DLLVM_ENABLE_PROJECTS="clang;lld" -DCMAKE_INSTALL_PREFIX=E:\llvm\install-debug-64 -DLLVM_TARGETS_TO_BUILD=X86 -DCMAKE_BUILD_TYPE=Debug ../llvm
msbuild /m -p:Configuration=Debug INSTALL.vcxproj

or
cmake -Bbuild -A X64 -DLLVM_ENABLE_PROJECTS="clang;lld" -DCMAKE_INSTALL_PREFIX=E:\llvm\install-debug-64 -DLLVM_TARGETS_TO_BUILD=X86 -DCMAKE_BUILD_TYPE=Debug llvm


X86：clang+lld+RelWithDebInfo

mkdir build-RelWithDebInfo-64
pushd build-RelWithDebInfo-64
cmake .. -G "Visual Studio 17 2022" -A X64 -DLLVM_ENABLE_PROJECTS="clang;lld" -DCMAKE_INSTALL_PREFIX=E:\llvm\install-RelWithDebInfo-64 -DLLVM_ENABLE_LIBXML2=OFF -DLLVM_ENABLE_ZLIB=OFF -DLLVM_TARGETS_TO_BUILD=X86 -DCMAKE_BUILD_TYPE=RelWithDebInfo -DLLVM_USE_CRT_RELEASE=MT ../llvm
msbuild /m -p:Configuration=RelWithDebInfo INSTALL.vcxproj 

X86：clang+lld+release

mkdir build-release-64
pushd build-release-64
cmake .. -G "Visual Studio 17 2022" -A X64 -DLLVM_ENABLE_PROJECTS="clang;lld" -DCMAKE_INSTALL_PREFIX=E:\llvm\install-release-64 -DLLVM_ENABLE_LIBXML2=OFF -DLLVM_ENABLE_ZLIB=OFF -DLLVM_TARGETS_TO_BUILD=X86 -DCMAKE_BUILD_TYPE=release -DLLVM_USE_CRT_RELEASE=MT ../llvm
msbuild /m -p:Configuration=release INSTALL.vcxproj 

How to contribute?

• https://github.com/HyunCafe/contribute-practice
• https://docs.github.com/en/get-started/quickstart/contributing-to-projects

How can I learn LLVM?

If you don't know how to learn LLVM, you can check out this repository of mine.

Can it run on linux?

No.

Can it run on macos?

No.

Credits

• LLVM
• Some anonymous people