[PATCH] D43005: [ARM] Error out on .arm assembler directives on windows

[Saleem Abdulrasool via Phabricator via llvm-commits]

compnerd added a comment.

I think we should first clarify that currently the only Windows on ARM support is Windows ARM NT (Windows ARM CE still does have both modes of execution).  The important thing to note here is that although the CPU supports both modes of execution, the Windows ARM NT kernel does not guarantee the current mode will be preserved (that is, if you trap into the kernel in ARM mode, you are probably going to come out in Thumb mode and fault).  I agree that we should try to fix this generally rather than hardcode this to Windows ARM.


Repository:
  rL LLVM

https://reviews.llvm.org/D43005