jhuber6 added inline comments.

================
Comment at: clang/lib/Frontend/CompilerInvocation.cpp:3209-3214
+      else if ((T.isArch64Bit() && TT.isArch32Bit()) ||
+               (T.isArch64Bit() && TT.isArch16Bit()) ||
+               (T.isArch32Bit() && TT.isArch64Bit()) ||
+               (T.isArch32Bit() && TT.isArch16Bit()) ||
+               (T.isArch16Bit() && TT.isArch32Bit()) ||
+               (T.isArch16Bit() && TT.isArch64Bit()))
----------------
ABataev wrote:
> Maybe do something like `Triple::getArchPointerBitWidth(T.getArch()) != 
> Triple::getArchPointerBitWidth(TT.getArch())"?
That was my first thought but that function is private to the Triple class so I 
just went with this brute force method. The file has this comment for the 
justification.


```
   /// Test whether the architecture is 64-bit
   ///
   /// Note that this tests for 64-bit pointer width, and nothing else. Note
   /// that we intentionally expose only three predicates, 64-bit, 32-bit, and
   /// 16-bit. The inner details of pointer width for particular architectures
   /// is not summed up in the triple, and so only a coarse grained predicate
   /// system is provided.
```


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D88594/new/

https://reviews.llvm.org/D88594

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