[flang][cuda] Add bind name for __ll2double_rX interfaces

[clementval]

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[llvmbot]

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

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/153462.diff

2 Files Affected:

• (modified) flang/module/cudadevice.f90 (+7-7)
• (modified) flang/test/Lower/CUDA/cuda-device-proc.cuf (+4)

diff --git a/flang/module/cudadevice.f90 b/flang/module/cudadevice.f90
index c026bc5b284b8..ce8d5123d6feb 100644
--- a/flang/module/cudadevice.f90
+++ b/flang/module/cudadevice.f90
@@ -625,29 +625,29 @@ attributes(device) real(8) function sinpi(x) bind(c,name='__nv_sinpi')
     end function
   end interface
 
-  interface __ll2double_rn
-    attributes(device) double precision function __ll2double_rn(i) bind(c)
+  interface __ll2double_rd
+    attributes(device) double precision function __ll2double_rd(i) bind(c, name='__nv_ll2double_rd')
       !dir$ ignore_tkr (d) i
       integer(8), value :: i
     end function
   end interface
 
-  interface __ll2double_rz
-    attributes(device) double precision function __ll2double_rz(i) bind(c)
+  interface __ll2double_rn
+    attributes(device) double precision function __ll2double_rn(i) bind(c, name='__nv_ll2double_rn')
       !dir$ ignore_tkr (d) i
       integer(8), value :: i
     end function
   end interface
 
   interface __ll2double_ru
-    attributes(device) double precision function __ll2double_ru(i) bind(c)
+    attributes(device) double precision function __ll2double_ru(i) bind(c, name='__nv_ll2double_ru')
       !dir$ ignore_tkr (d) i
       integer(8), value :: i
     end function
   end interface
 
-  interface __ll2double_rd
-    attributes(device) double precision function __ll2double_rd(i) bind(c)
+  interface __ll2double_rz
+    attributes(device) double precision function __ll2double_rz(i) bind(c, name='__nv_ll2double_rz')
       !dir$ ignore_tkr (d) i
       integer(8), value :: i
     end function
diff --git a/flang/test/Lower/CUDA/cuda-device-proc.cuf b/flang/test/Lower/CUDA/cuda-device-proc.cuf
index a01935876360a..56abcfd16563b 100644
--- a/flang/test/Lower/CUDA/cuda-device-proc.cuf
+++ b/flang/test/Lower/CUDA/cuda-device-proc.cuf
@@ -77,6 +77,10 @@ attributes(global) subroutine devsub()
   ai = __mul24(ai, ai)
   ai = __umul24(ai, ai)
   af = __powf(af, af)
+  ad = __ll2double_rd(al)
+  ad = __ll2double_rn(al)
+  ad = __ll2double_ru(al)
+  ad = __ll2double_rz(al)
 end
 
 ! CHECK-LABEL: func.func @_QPdevsub() attributes {cuf.proc_attr = #cuf.cuda_proc<global>}