diff --git a/flang/module/cudadevice.f90 b/flang/module/cudadevice.f90
index 4f3625a8b07af..fd23bcbc37ffc 100644
--- a/flang/module/cudadevice.f90
+++ b/flang/module/cudadevice.f90
@@ -392,6 +392,20 @@ attributes(device) subroutine sincospi(x, y, z) bind(c,name='__nv_sincospi')
     end function
   end interface
 
+  interface __sinf
+    attributes(device) real function __sinf(r) bind(c, name='__nv_sinf')
+      !dir$ ignore_tkr (d) r
+      real, value :: r
+    end function
+  end interface
+
+  interface __tanf
+    attributes(device) real function __tanf(r) bind(c, name='__nv_tanf')
+      !dir$ ignore_tkr (d) r
+      real, value :: r
+    end function
+  end interface
+
   interface
     attributes(device) real(4) function cospif(x) bind(c,name='__nv_cospif')
       real(4), value :: x
diff --git a/flang/test/Lower/CUDA/cuda-libdevice.cuf b/flang/test/Lower/CUDA/cuda-libdevice.cuf
index 10e4c2757d825..a91e503a65561 100644
--- a/flang/test/Lower/CUDA/cuda-libdevice.cuf
+++ b/flang/test/Lower/CUDA/cuda-libdevice.cuf
@@ -19,3 +19,21 @@ end subroutine
 
 ! CHECK-LABEL: _QPtest_usad
 ! CHECK: %{{.*}} = fir.call @__nv_usad(%{{.*}}, %{{.*}}, %{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i32, i32, i32) -> i32
+
+attributes(global) subroutine test_sinf()
+  real :: res
+  real :: r
+  res = __sinf(r)
+end subroutine
+
+! CHECK-LABEL: _QPtest_sinf
+! CHECK: %{{.*}} = fir.call @__nv_sinf(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f32) -> f32
+
+attributes(global) subroutine test_tanf()
+  real :: res
+  real :: r
+  res = __tanf(r)
+end subroutine
+
+! CHECK-LABEL: _QPtest_tanf
+! CHECK: %{{.*}} = fir.call @__nv_tanf(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f32) -> f32