[flang][cuda] Add bind name for __double2uint_XX interfaces

[clementval]

Also reorder the interfaces so they appear in alphabetical order

[llvmbot]

@llvm/pr-subscribers-flang-fir-hlfir

Author: Valentin Clement (バレンタイン クレメン) (clementval)

Changes

Also reorder the interfaces so they appear in alphabetical order

---

Full diff: https://github.com/llvm/llvm-project/pull/153285.diff

2 Files Affected:

• (modified) flang/module/cudadevice.f90 (+7-7)
• (modified) flang/test/Lower/CUDA/cuda-device-proc.cuf (+10)

diff --git a/flang/module/cudadevice.f90 b/flang/module/cudadevice.f90
index 1b3c98b3e3f96..2e08e762df16b 100644
--- a/flang/module/cudadevice.f90
+++ b/flang/module/cudadevice.f90
@@ -472,29 +472,29 @@ attributes(device) real(8) function sinpi(x) bind(c,name='__nv_sinpi')
     end function
   end interface
 
-  interface __double2uint_rn
-    attributes(device) integer function __double2uint_rn(r) bind(c)
+  interface __double2uint_rd
+    attributes(device) integer function __double2uint_rd(r) bind(c, name='__nv_double2uint_rd')
       !dir$ ignore_tkr (d) r
       double precision, value :: r
     end function
   end interface
 
-  interface __double2uint_rz
-    attributes(device) integer function __double2uint_rz(r) bind(c)
+  interface __double2uint_rn
+    attributes(device) integer function __double2uint_rn(r) bind(c, name='__nv_double2uint_rn')
       !dir$ ignore_tkr (d) r
       double precision, value :: r
     end function
   end interface
 
   interface __double2uint_ru
-    attributes(device) integer function __double2uint_ru(r) bind(c)
+    attributes(device) integer function __double2uint_ru(r) bind(c, name='__nv_double2uint_ru')
       !dir$ ignore_tkr (d) r
       double precision, value :: r
     end function
   end interface
 
-  interface __double2uint_rd
-    attributes(device) integer function __double2uint_rd(r) bind(c)
+  interface __double2uint_rz
+    attributes(device) integer function __double2uint_rz(r) bind(c, name='__nv_double2uint_rz')
       !dir$ ignore_tkr (d) r
       double precision, value :: r
     end function
diff --git a/flang/test/Lower/CUDA/cuda-device-proc.cuf b/flang/test/Lower/CUDA/cuda-device-proc.cuf
index 24600291b788a..378ef3a519018 100644
--- a/flang/test/Lower/CUDA/cuda-device-proc.cuf
+++ b/flang/test/Lower/CUDA/cuda-device-proc.cuf
@@ -58,6 +58,11 @@ attributes(global) subroutine devsub()
   res = __ffs(al)
   res = __brev(ai)
   resl = __brev(al)
+
+  ai = __double2uint_rd(ad)
+  ai = __double2uint_rn(ad)
+  ai = __double2uint_ru(ad)
+  ai = __double2uint_rz(ad)
 end
 
 ! CHECK-LABEL: func.func @_QPdevsub() attributes {cuf.proc_attr = #cuf.cuda_proc<global>}
@@ -105,6 +110,11 @@ end
 ! CHECK: %{{.*}} = fir.call @__nv_brev(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i32) -> i32
 ! CHECK: %{{.*}} = fir.call @__nv_brevll(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i64) -> i64
 
+! CHECK: %{{.*}} = fir.call @__nv_double2uint_rd(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> i32
+! CHECK: %{{.*}} = fir.call @__nv_double2uint_rn(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> i32
+! CHECK: %{{.*}} = fir.call @__nv_double2uint_ru(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> i32
+! CHECK: %{{.*}} = fir.call @__nv_double2uint_rz(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> i32
+
 subroutine host1()
   integer, device :: a(32)
   integer, device :: ret