opt seems to ignore -load (Win32)

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Hello Developers,

I was unsuccessfully trying to execute the hello world example described in
http://llvm.org/docs/WritingAnLLVMPass.html
as a dynamic module loaded by opt.

Compiling the hello world example as a .dll file went pretty smoothly. An
opt -load <file.dll> -hello source.bc -o result.bc
would then complain about -hello being an unrecognized option although hello was specified like this:
RegisterPass<Hello> X("*hello*", "*Hello World Pass*")

Debugging into opt revealed that it recognized -load, however, would not make the option available.

The used environment is:
WindowsXP 32Bit
Visual Studio 2008
CMake 2.8.0

No difference between LLVM 2.6 and the current svn version.

Question: Is dynamic module loading (dll files) supported on Windows at all? Or is it a better idea to use MinGW and try loading .so files, instead?

Thanks in advance for your support.

Sincerely,
Philipp Legrum
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2

Hello

Question: Is dynamic module loading (dll files) supported on Windows at all?

No, since windows uses static linking.

Or is it a better idea to use MinGW and try loading .so files, instead?

mingw (and cygwin) are "on windows" as well yielding the same result