================
@@ -2616,6 +2617,13 @@ bool Sema::IsFloatingPointPromotion(QualType FromType,
QualType ToType) {
ToBuiltin->getKind() == BuiltinType::Ibm128))
return true;
+ // In HLSL, `half` promotes to `float` or `double`, regardless of whether
+ // or not native half types are enabled.
----------------
bharadwajy wrote:
It appears that `half` is represented as LLVM IR type `half` with
`-enable-16bit-types` option specified and is promoted to `float` without it
being specified per [this](https://godbolt.org/z/53qc3a9PY).
https://github.com/llvm/llvm-project/pull/90222
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