[flang-commits] [flang] ffe4870 - [flang][cuda] Add interfaces for __float2int_rX and __float2unit_rX (#153691)

[via flang-commits]

Author: Valentin Clement (バレンタイン クレメン)
Date: 2025-08-14T23:11:45Z
New Revision: ffe48704721ec0710c7622d7f4170a9d03e77dbd

URL: https://github.com/llvm/llvm-project/commit/ffe48704721ec0710c7622d7f4170a9d03e77dbd
DIFF: https://github.com/llvm/llvm-project/commit/ffe48704721ec0710c7622d7f4170a9d03e77dbd.diff

LOG: [flang][cuda] Add interfaces for __float2int_rX and __float2unit_rX (#153691)

Added: 
    

Modified: 
    flang/module/cudadevice.f90
    flang/test/Lower/CUDA/cuda-libdevice.cuf

Removed: 
    


################################################################################
diff  --git a/flang/module/cudadevice.f90 b/flang/module/cudadevice.f90
index 598d154eb3d8a..2a5fced6c02c2 100644
--- a/flang/module/cudadevice.f90
+++ b/flang/module/cudadevice.f90
@@ -478,6 +478,62 @@ attributes(device) real(8) function sinpi(x) bind(c,name='__nv_sinpi')
     end function
   end interface
 
+  interface __float2int_rd
+    attributes(device) integer function __float2int_rd(r) bind(c, name='__nv_float2int_rd')
+      !dir$ ignore_tkr (d) r
+      real, value :: r
+    end function
+  end interface
+
+  interface __float2int_rn
+    attributes(device) integer function __float2int_rn(r) bind(c, name='__nv_float2int_rn')
+      !dir$ ignore_tkr (d) r
+      real, value :: r
+    end function
+  end interface
+
+  interface __float2int_ru
+    attributes(device) integer function __float2int_ru(r) bind(c, name='__nv_float2int_ru')
+      !dir$ ignore_tkr (d) r
+      real, value :: r
+    end function
+  end interface
+
+  interface __float2int_rz
+    attributes(device) integer function __float2int_rz(r) bind(c, name='__nv_float2int_rz')
+      !dir$ ignore_tkr (d) r
+      real, value :: r
+    end function
+  end interface
+
+  interface __float2uint_rd
+    attributes(device) integer function __float2uint_rd(r) bind(c, name='__nv_float2uint_rd')
+      !dir$ ignore_tkr (d) r
+      real, value :: r
+    end function
+  end interface
+
+  interface __float2uint_rn
+    attributes(device) integer function __float2uint_rn(r) bind(c, name='__nv_float2uint_rn')
+      !dir$ ignore_tkr (d) r
+      real, value :: r
+    end function
+  end interface
+
+  interface __float2uint_ru
+    attributes(device) integer function __float2uint_ru(r) bind(c, name='__nv_float2uint_ru')
+      !dir$ ignore_tkr (d) r
+      real, value :: r
+    end function
+  end interface
+
+  interface __float2uint_rz
+    attributes(device) integer function __float2uint_rz(r) bind(c, name='__nv_float2uint_rz')
+      !dir$ ignore_tkr (d) r
+      real, value :: r
+    end function
+  end interface
+
   interface __float2ll_rd
     attributes(device) integer(8) function __float2ll_rd(r) bind(c, name='__nv_float2ll_rd')
       !dir$ ignore_tkr (d) r

diff  --git a/flang/test/Lower/CUDA/cuda-libdevice.cuf b/flang/test/Lower/CUDA/cuda-libdevice.cuf
index ecce60599a358..d54456f3df943 100644
--- a/flang/test/Lower/CUDA/cuda-libdevice.cuf
+++ b/flang/test/Lower/CUDA/cuda-libdevice.cuf
@@ -131,7 +131,6 @@ end subroutine
 ! 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_drcp_rX()
   double precision :: res
   double precision :: r
@@ -200,3 +199,32 @@ end subroutine
 ! CHECK: %{{.*}} = fir.call @__nv_ll2float_rn(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i64) -> f32
 ! CHECK: %{{.*}} = fir.call @__nv_ll2float_ru(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i64) -> f32
 ! CHECK: %{{.*}} = fir.call @__nv_ll2float_rz(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i64) -> f32
+attributes(global) subroutine test_float2int_rX()
+  integer :: res
+  real :: r
+  res = __float2int_rd(r)
+  res = __float2int_rn(r)
+  res = __float2int_ru(r)
+  res = __float2int_rz(r)
+end subroutine
+
+! CHECK-LABEL: _QPtest_float2int_rx
+! CHECK: %{{.*}} = fir.call @__nv_float2int_rd(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f32) -> i32    
+! CHECK: %{{.*}} = fir.call @__nv_float2int_rn(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f32) -> i32
+! CHECK: %{{.*}} = fir.call @__nv_float2int_ru(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f32) -> i32
+! CHECK: %{{.*}} = fir.call @__nv_float2int_rz(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f32) -> i32
+
+attributes(global) subroutine test_float2uint_rX()
+  integer :: res
+  real :: r
+  res = __float2uint_rd(r)
+  res = __float2uint_rn(r)
+  res = __float2uint_ru(r)
+  res = __float2uint_rz(r)
+end subroutine
+
+! CHECK-LABEL: _QPtest_float2uint_rx
+! CHECK: %{{.*}} = fir.call @__nv_float2uint_rd(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f32) -> i32
+! CHECK: %{{.*}} = fir.call @__nv_float2uint_rn(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f32) -> i32
+! CHECK: %{{.*}} = fir.call @__nv_float2uint_ru(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f32) -> i32
+! CHECK: %{{.*}} = fir.call @__nv_float2uint_rz(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f32) -> i32