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[flang][cuda] Add interfaces for __float2int_rX and __float2unit_rX #153691

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Aug 14, 2025
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[flang][cuda] Add interfaces for __float2int_rX and __float2unit_rX #153691

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56 changes: 56 additions & 0 deletions flang/module/cudadevice.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -471,6 +471,62 @@ 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
Expand Down
30 changes: 29 additions & 1 deletion flang/test/Lower/CUDA/cuda-libdevice.cuf
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Expand Up @@ -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
Expand Down Expand Up @@ -191,3 +190,32 @@ 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