[PATCH] D95984: [CodeGen] Fix codegen for __attribute__((swiftasynccall)).

[Varun Gandhi via Phabricator via cfe-commits]

varungandhi-apple created this revision.
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1. It should be mapped to LLVM's swifttailcc, which is now available.
2. We should make sure we generate a tail call instead of an ordinary call.

Fixes rdar://73762895.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D95984

Files:
  clang/lib/CodeGen/CGCall.cpp
  clang/test/CodeGen/64bit-swiftcall.c
  clang/test/CodeGen/arm-swiftcall.c
  clang/test/CodeGen/swift-async-call-conv.c
  clang/test/CodeGen/swift-call-conv.c

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