commit bad3df476457db2fd7dd36729c47fb1d2bddad3a
author Valentin Clement (バレンタイン クレメン) <clementval@gmail.com> Thu Aug 14 13:34:25 2025 -0700
committer GitHub <noreply@github.com> Thu Aug 14 13:34:25 2025 -0700
tree d47bb3b885d62bc5e0fab5c438b95b3357663939
parent 52c9489d1d9bd80454a5b9647393ca41c65e2b57

[flang][cuda] Add bind names for __double2ll_rX interfaces (#153660)

flang/module/cudadevice.f90

diff --git a/flang/module/cudadevice.f90 b/flang/module/cudadevice.f90
index 4321250..1e403b1 100644
--- a/flang/module/cudadevice.f90
+++ b/flang/module/cudadevice.f90
@@ -625,29 +625,29 @@
     end function
   end interface
 
-  interface __double2ll_rn
-    attributes(device) integer(8) function __double2ll_rn(r) bind(c)
+  interface __double2ll_rd
+    attributes(device) integer(8) function __double2ll_rd(r) bind(c, name='__nv_double2ll_rd')
       !dir$ ignore_tkr (d) r
       double precision, value :: r
     end function
   end interface
 
-  interface __double2ll_rz
-    attributes(device) integer(8) function __double2ll_rz(r) bind(c)
+  interface __double2ll_rn
+    attributes(device) integer(8) function __double2ll_rn(r) bind(c, name='__nv_double2ll_rn')
       !dir$ ignore_tkr (d) r
       double precision, value :: r
     end function
   end interface
 
   interface __double2ll_ru
-    attributes(device) integer(8) function __double2ll_ru(r) bind(c)
+    attributes(device) integer(8) function __double2ll_ru(r) bind(c, name='__nv_double2ll_ru')
       !dir$ ignore_tkr (d) r
       double precision, value :: r
     end function
   end interface
 
-  interface __double2ll_rd
-    attributes(device) integer(8) function __double2ll_rd(r) bind(c)
+  interface __double2ll_rz
+    attributes(device) integer(8) function __double2ll_rz(r) bind(c, name='__nv_double2ll_rz')
       !dir$ ignore_tkr (d) r
       double precision, value :: r
     end function

flang/test/Lower/CUDA/cuda-libdevice.cuf

diff --git a/flang/test/Lower/CUDA/cuda-libdevice.cuf b/flang/test/Lower/CUDA/cuda-libdevice.cuf
index 6b80fb2..844bdb9 100644
--- a/flang/test/Lower/CUDA/cuda-libdevice.cuf
+++ b/flang/test/Lower/CUDA/cuda-libdevice.cuf
@@ -100,3 +100,18 @@
 ! CHECK-LABEL: _QPtest_exp
 ! CHECK: %{{.*}} = fir.call @__nv_expf(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f32) -> f32
 ! CHECK: %{{.*}} = fir.call @__nv_exp10f(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f32) -> f32
+
+attributes(global) subroutine test_double2ll_rX()
+  integer(8) :: res
+  double precision :: r
+  res = __double2ll_rd(r)
+  res = __double2ll_rn(r)
+  res = __double2ll_ru(r)
+  res = __double2ll_rz(r)
+end subroutine
+
+! CHECK-LABEL: _QPtest_double2ll_rx
+! CHECK: %{{.*}} = fir.call @__nv_double2ll_rd(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> i64
+! CHECK: %{{.*}} = fir.call @__nv_double2ll_rn(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> i64
+! CHECK: %{{.*}} = fir.call @__nv_double2ll_ru(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> i64
+! CHECK: %{{.*}} = fir.call @__nv_double2ll_rz(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> i64