martell added inline comments.
================
Comment at: lib/Driver/ToolChains/MinGW.cpp:129
+ else if (TC.getArch() == llvm::Triple::aarch64)
+ CmdArgs.push_back("arm64pe");
+ else
----------------
I believe the reason I used thumb2pe for the arm triple is because MS gave us a
watered down thumb environment.
If I remember correctly there was also an armce environment in binutils called
thumbpe because it was thumb 1 mode.
Anyway, I assume aarch64 on windows is a fully fledged arm64 environment that
doesn't use thumb mode over arm64?
I know we don't have any real sdk for this but are you able to tell from
link.exe martin?
On arm the branch for a dll call would always set the bit for thumb mode in the
instruction.
Although when I think about it arm64pe is probably the most suitable name
anyway because we already use thumb2pe
https://reviews.llvm.org/D36364
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