1 files changed, 37 insertions, 0 deletions
diff --git a/src/glsl/builtins/ir/atanh b/src/glsl/builtins/ir/atanh
new file mode 100644
index 00000000000..5559e974066
--- /dev/null
+++ b/src/glsl/builtins/ir/atanh
@@ -0,0 +1,37 @@
+((function atanh
+   (signature float
+     (parameters
+       (declare (in) float x))
+     ((return (expression float * (constant float (0.5))
+                (expression float log
+		  (expression float /
+                    (expression float + (constant float (1)) (var_ref x))
+                    (expression float - (constant float (1)) (var_ref x))))))))
+
+   (signature vec2
+     (parameters
+       (declare (in) vec2 x))
+     ((return (expression vec2 * (constant vec2 (0.5))
+                (expression vec2 log
+		  (expression vec2 /
+                    (expression vec2 + (constant vec2 (1)) (var_ref x))
+                    (expression vec2 - (constant vec2 (1)) (var_ref x))))))))
+
+   (signature vec3
+     (parameters
+       (declare (in) vec3 x))
+     ((return (expression vec3 * (constant vec3 (0.5))
+                (expression vec3 log
+		  (expression vec3 /
+                    (expression vec3 + (constant vec3 (1)) (var_ref x))
+                    (expression vec3 - (constant vec3 (1)) (var_ref x))))))))
+
+   (signature vec4
+     (parameters
+       (declare (in) vec4 x))
+     ((return (expression vec4 * (constant vec4 (0.5))
+                (expression vec4 log
+		  (expression vec4 /
+                    (expression vec4 + (constant vec4 (1)) (var_ref x))
+                    (expression vec4 - (constant vec4 (1)) (var_ref x))))))))
+))