Add builtin_exp

vgvassilev · Oct 25, 2024 · be5679c · be5679c
1 parent ff74e0c
commit be5679c
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/include/clad/Differentiator/BuiltinDerivatives.h b/include/clad/Differentiator/BuiltinDerivatives.h
@@ -147,6 +147,11 @@ CUDA_HOST_DEVICE inline void __builtin_powf_pullback(float x, float exponent,
   *d_exponent += t.pushforward * d_y;
 }
 
+CUDA_HOST_DEVICE ValueAndPushforward<double, double>
+inline __builtin_exp_pushforward(double x, double d_x) {
+  return {__builtin_exp(x), __builtin_exp(x) * d_x};
+}
+
 // FIXME: Add the rest of the __builtin_ routines for log, sqrt, abs, etc.
 
 namespace std {