================
@@ -214,6 +214,53 @@ const inline double4 dst(double4 Src0, double4 Src1) {
return __detail::dst_impl(Src0, Src1);
}
+//===----------------------------------------------------------------------===//
+// faceforward builtin
+//===----------------------------------------------------------------------===//
+
+/// \fn T faceforward(T N, T I, T Ng)
+/// \brief Flips the surface-normal (if needed) to face in a direction opposite
+/// to \a I. Returns the result in \a N.
----------------
kmpeng wrote:
Ah yeah, that's makes it much more clear. Code updated, thanks!
https://github.com/llvm/llvm-project/pull/135878
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