[flang-commits] [flang] [flang][cuda] Add bind names for __double2ull_rX interfaces (PR #153678)

[Valentin Clement バレンタイン クレメン via flang-commits]

https://github.com/clementval created https://github.com/llvm/llvm-project/pull/153678

None

>From fba024b6384b725b959ed72d3432cb234a9b2717 Mon Sep 17 00:00:00 2001
From: Valentin Clement <clementval at gmail.com>
Date: Thu, 14 Aug 2025 13:50:22 -0700
Subject: [PATCH] [flang][cuda] Add bind names for __double2ull_rX interfaces

---
 flang/module/cudadevice.f90              | 14 +++++++-------
 flang/test/Lower/CUDA/cuda-libdevice.cuf | 15 +++++++++++++++
 2 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/flang/module/cudadevice.f90 b/flang/module/cudadevice.f90
index 1e403b1ffdb91..259812d0eed1d 100644
--- a/flang/module/cudadevice.f90
+++ b/flang/module/cudadevice.f90
@@ -653,29 +653,29 @@ attributes(device) real(8) function sinpi(x) bind(c,name='__nv_sinpi')
     end function
   end interface
 
-  interface __double2ull_rn
-    attributes(device) integer(8) function __double2ull_rn(r) bind(c)
+  interface __double2ull_rd
+    attributes(device) integer(8) function __double2ull_rd(r) bind(c, name='__nv_double2ull_rd')
       !dir$ ignore_tkr (d) r
       double precision, value :: r
     end function
   end interface
 
-  interface __double2ull_rz
-    attributes(device) integer(8) function __double2ull_rz(r) bind(c)
+  interface __double2ull_rn
+    attributes(device) integer(8) function __double2ull_rn(r) bind(c, name='__nv_double2ull_rn')
       !dir$ ignore_tkr (d) r
       double precision, value :: r
     end function
   end interface
 
   interface __double2ull_ru
-    attributes(device) integer(8) function __double2ull_ru(r) bind(c)
+    attributes(device) integer(8) function __double2ull_ru(r) bind(c, name='__nv_double2ull_ru')
       !dir$ ignore_tkr (d) r
       double precision, value :: r
     end function
   end interface
 
-  interface __double2ull_rd
-    attributes(device) integer(8) function __double2ull_rd(r) bind(c)
+  interface __double2ull_rz
+    attributes(device) integer(8) function __double2ull_rz(r) bind(c, name='__nv_double2ull_rz')
       !dir$ ignore_tkr (d) r
       double precision, value :: r
     end function
diff --git a/flang/test/Lower/CUDA/cuda-libdevice.cuf b/flang/test/Lower/CUDA/cuda-libdevice.cuf
index 844bdb954924a..52cf9c391c8de 100644
--- a/flang/test/Lower/CUDA/cuda-libdevice.cuf
+++ b/flang/test/Lower/CUDA/cuda-libdevice.cuf
@@ -115,3 +115,18 @@ end subroutine
 ! 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
+
+attributes(global) subroutine test_double2ull_rX()
+  integer(8) :: res
+  double precision :: r
+  res = __double2ull_rd(r)
+  res = __double2ull_rn(r)
+  res = __double2ull_ru(r)
+  res = __double2ull_rz(r)
+end subroutine
+
+! CHECK-LABEL: _QPtest_double2ull_rx
+! CHECK: %{{.*}} = fir.call @__nv_double2ull_rd(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> i64
+! CHECK: %{{.*}} = fir.call @__nv_double2ull_rn(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> i64
+! CHECK: %{{.*}} = fir.call @__nv_double2ull_ru(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> i64
+! CHECK: %{{.*}} = fir.call @__nv_double2ull_rz(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> i64