Backport ARM64EC variadic args fixes to LLVM 18#81800

Merged

tstellar merged 3 commits intollvm:release/18.xfrom

dpaoliello:backportarm64ec

Mar 13, 2024

Commits on Mar 11, 2024

[AArch64] Fix variadic tail-calls on ARM64EC (#79774)

bylaws
authored and
dpaoliello
committed
[AArch64] Fix generated types for ARM64EC variadic entry thunk targets (#80595)

bylaws
authored and
dpaoliello
committed
[AArch64] Skip over shadow space for ARM64EC entry thunk variadic calls (#80994)

bylaws
authored and
dpaoliello
committed