benshi001 added inline comments.

================
Comment at: clang/lib/Basic/Targets/AVR.cpp:313
+  Builder.defineMacro("__UINT16_TYPE__", "unsigned int");
+  Builder.defineMacro("__INT16_TYPE__", "int");
 
----------------
efriedma wrote:
> Redefining `__INT16_TYPE__` like this is unusual.  The macro is normally 
> defined in InitPreprocessor.cpp; if the logic there is wrong, I'd prefer to 
> fix it there.
> 
> For specific types int16_t and uint16_t, I'm not sure if anything inside the 
> compiler actually uses them at the moment, but I'd prefer to encode the type 
> in the TargetInfo, along the lines of getInt64Type(), in case we need these 
> types elsewhere in the future.
Making changes to InitPreprocessor.cpp will affect all targets, and I not 
familar with other targets. Actually AVR is so special that it defines  
`__INT16_TYPE__` to `int`.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D100701/new/

https://reviews.llvm.org/D100701

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