mstorsjo added inline comments.

================
Comment at: clang/lib/CodeGen/CGCall.cpp:238
+  if (D->hasAttr<DarwinABIAttr>())
+    return IsDarwin ? CC_C : CC_AArch64Darwin;
+
----------------
aaron.ballman wrote:
> Can you help me understand this change a bit better? If the declaration uses 
> the Darwin ABI and the platform is Darwin, you want to use the cdecl 
> convention?
This (here and in the other similar places) matches the existing logic for the 
`ms_abi` attribute; if you're on a platform where the attribute selects what 
already is the default (what `CC_C` implies on this platform), we just use that 
instead of the more explicit calling convention.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D89490/new/

https://reviews.llvm.org/D89490

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