From a27f3e3fd1e4d16160f8885b6b06665b5319f56c Mon Sep 17 00:00:00 2001
From: Guillaume Gomez <guillaume1.gomez@gmail.com>
Date: Mon, 21 Jul 2025 14:34:12 +0200
Subject: Rename `tests/codegen` into `tests/codegen-llvm`

---
 tests/codegen-llvm/autodiff/generic.rs | 42 ++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 tests/codegen-llvm/autodiff/generic.rs

(limited to 'tests/codegen-llvm/autodiff/generic.rs')

diff --git a/tests/codegen-llvm/autodiff/generic.rs b/tests/codegen-llvm/autodiff/generic.rs
new file mode 100644
index 00000000000..2f674079be0
--- /dev/null
+++ b/tests/codegen-llvm/autodiff/generic.rs
@@ -0,0 +1,42 @@
+//@ compile-flags: -Zautodiff=Enable -Zautodiff=NoPostopt -C opt-level=3 -Clto=fat
+//@ no-prefer-dynamic
+//@ needs-enzyme
+#![feature(autodiff)]
+
+use std::autodiff::autodiff_reverse;
+
+#[autodiff_reverse(d_square, Duplicated, Active)]
+fn square<T: std::ops::Mul<Output = T> + Copy>(x: &T) -> T {
+    *x * *x
+}
+
+// Ensure that `d_square::<f64>` code is generated even if `square::<f64>` was never called
+//
+// CHECK: ; generic::square
+// CHECK-NEXT: ; Function Attrs:
+// CHECK-NEXT: define internal {{.*}} double
+// CHECK-NEXT: start:
+// CHECK-NOT: ret
+// CHECK: fmul double
+
+// Ensure that `d_square::<f32>` code is generated
+//
+// CHECK: ; generic::square
+// CHECK-NEXT: ; Function Attrs: {{.*}}
+// CHECK-NEXT: define internal {{.*}} float
+// CHECK-NEXT: start:
+// CHECK-NOT: ret
+// CHECK: fmul float
+
+fn main() {
+    let xf32: f32 = std::hint::black_box(3.0);
+    let xf64: f64 = std::hint::black_box(3.0);
+
+    let outputf32 = square::<f32>(&xf32);
+    assert_eq!(9.0, outputf32);
+
+    let mut df_dxf64: f64 = std::hint::black_box(0.0);
+
+    let output_f64 = d_square::<f64>(&xf64, &mut df_dxf64, 1.0);
+    assert_eq!(6.0, df_dxf64);
+}
-- 
cgit 1.4.1-3-g733a5