[PATCH] D143387: AArch64/GISel: fall back to SDAG if a Darwin function needs varargs regs saved.

[Tim Northover via Phabricator via llvm-commits]

t.p.northover created this revision.
t.p.northover added reviewers: paquette, aemerson.
Herald added subscribers: hiraditya, kristof.beyls, mcrosier.
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A function on Darwin with `win64cc` needs to save any GPRs that might contain varargs arguments. GlobalISel can't do that yet, so we should fall back.


https://reviews.llvm.org/D143387

Files:
  llvm/lib/Target/AArch64/GISel/AArch64CallLowering.cpp
  llvm/test/CodeGen/AArch64/aarch64_win64cc_vararg.ll

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