[PATCH] D34474: [RFC] [AArch64] Add a win64 specific aarch64 calling convention, for va_list handling

[Martin Storsjö via Phabricator via llvm-commits]

mstorsjo added a comment.

Ping - can someone who knows aarch64 and/or LLVM internals in general, comment on whether the stack handling is correct (I'm not confident about that part of code but just tried to look at the ARM and X86 targets to figure out enough to make it work). The generated function prologues start with two "sub sp, sp, #..." instructions - one for the area reserved for storing register arguments to fit in with the rest of the arguments on the stack, and one for the rest of the stack usage.


https://reviews.llvm.org/D34474