[PATCH] D24071: [compiler-rt] [builtins] Allow building the necessary ARM builtins for MSVC mode with cmake

[James Molloy via llvm-commits]

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jmolloy added a comment.

Hi,

So I guess the problem is that we emit the "correct" libcalls for UDIV/SDIV but not for UREM/SREM. I can't seem to find a libcall in Windows for modulo - what is the expected behaviour here?

Modulo can be emitted as a division + multiply-subtract - in fact one of our engineers is working on such a patch right now - it could be extended to work in windows-on-arm mode too perhaps?

I think I really need to know what the expected code should be for modulo.

James


https://reviews.llvm.org/D24071