rsmith added a comment.
We need to be completely clear on the differences and interactions between
`_Float16` and `__fp16`; you should include a documentation update that
describes this as part of this change or as a companion change. In particular,
an explanation of why we need two different types here is essential.
================
Comment at: lib/AST/ItaniumMangle.cpp:2457-2460
+ case BuiltinType::Float16:
case BuiltinType::Half:
Out << "Dh";
break;
----------------
Distinct types should have distinct manglings. Please open an issue at
https://github.com/itanium-cxx-abi/cxx-abi/ to discuss how to mangle these
cases.
================
Comment at: lib/Lex/LiteralSupport.cpp:594
+ if (s + 2 < ThisTokEnd && s[1] == '1' && s[2] == '6') {
+ s += 2; // success, eat up 2 tokens.
+ isFloat16 = true;
----------------
s/tokens/characters/
https://reviews.llvm.org/D33719
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