ir_constant_expression: Add support for the "tanh" builtin.
diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp
index bcf87e0..aedc661 100644
--- a/src/glsl/ir_constant_expression.cpp
+++ b/src/glsl/ir_constant_expression.cpp
@@ -930,7 +930,9 @@
for (unsigned c = 0; c < op[0]->type->components(); c++)
data.f[c] = tanf(op[0]->value.f[c]);
} else if (strcmp(callee, "tanh") == 0) {
- return NULL; /* FINISHME: implement this */
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = tanhf(op[0]->value.f[c]);
} else if (strcmp(callee, "transpose") == 0) {
return NULL; /* FINISHME: implement this */
} else {