================
@@ -80,6 +80,25 @@ void asuint(double3, out uint3, out uint3);
_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_splitdouble)
void asuint(double4, out uint4, out uint4);
+//===----------------------------------------------------------------------===//
+// asint16 builtins
+//===----------------------------------------------------------------------===//
+
+/// \fn int16_t asint16(T Val)
+/// \brief Interprets the bit pattern of x as an 16-bit integer.
+/// \param Val The input value.
+#ifdef __HLSL_ENABLE_16_BIT
+
+template <typename T, int N>
+constexpr vector<int16_t, N> asint16(vector<T, N> V) {
+ return __detail::bit_cast<int16_t, T, N>(V);
+}
+
+template <typename T> constexpr int16_t asint16(T F) {
----------------
farzonl wrote:
Ok so after comfirming with other folks we should constrain the supported
overloads of `asint16` to `half`, `int16_t`, and `uint16_t`. Using the
`enable_if_t` strategy indicated above. This will impact the tests in
`clang/test/SemaHLSL/BuiltIns/asint16-errors.hlsl` to all be `//
expected-error@-1 {{no matching function for call to 'asint16'}}` for all the
non 16 bit cases.
https://github.com/llvm/llvm-project/pull/131900
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