[PATCH] D53843: Make sure to forward arguments from vararg to musttail vararg

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

Testcase should also check that the vector registers are correctly saved/restored.  (Something like `call void asm sideeffect "", "~{d0}"()` should force a spill.)  It looks like the code handles this correctly already.

Otherwise LGTM.


https://reviews.llvm.org/D53843