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[flang][cuda] Add interfaces for __uint2float_rX functions #153620

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Merged
merged 2 commits into from
Aug 14, 2025
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[flang][cuda] Add interfaces for __uint2float_rX functions #153620

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65b82e2
[flang][cuda] Add interfaces for __uint2float_rX functions
clementval Aug 14, 2025
a06c1d2
Merge branch 'main' into cuf_uint2
clementval Aug 14, 2025
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30 changes: 29 additions & 1 deletion flang/module/cudadevice.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -590,8 +590,36 @@ attributes(device) real(8) function sinpi(x) bind(c,name='__nv_sinpi')
end function
end interface

interface __uint2float_rd
attributes(device) real function __uint2float_rd(i) bind(c, name='__nv_uint2float_rd')
!dir$ ignore_tkr (d) i
integer, value :: i
end function
end interface

interface __uint2float_rn
attributes(device) real function __uint2float_rn(i) bind(c, name='__nv_uint2float_rn')
!dir$ ignore_tkr (d) i
integer, value :: i
end function
end interface

interface __uint2float_ru
attributes(device) real function __uint2float_ru(i) bind(c, name='__nv_uint2float_ru')
!dir$ ignore_tkr (d) i
integer, value :: i
end function
end interface

interface __uint2float_rz
attributes(device) real function __uint2float_rz(i) bind(c, name='__nv_uint2float_rz')
!dir$ ignore_tkr (d) i
integer, value :: i
end function
end interface

interface __uint2double_rn
attributes(device) double precision function __uint2double_rn(i) bind(c)
attributes(device) double precision function __uint2double_rn(i) bind(c, name='__nv_uint2double_rn')
!dir$ ignore_tkr (d) i
integer, value :: i
end function
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24 changes: 24 additions & 0 deletions flang/test/Lower/CUDA/cuda-libdevice.cuf
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Expand Up @@ -20,6 +20,30 @@ end subroutine
! CHECK-LABEL: _QPtest_usad
! CHECK: %{{.*}} = fir.call @__nv_usad(%{{.*}}, %{{.*}}, %{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i32, i32, i32) -> i32

attributes(global) subroutine test_uint2float_rX()
real :: res
integer :: i
res = __uint2float_rd(i)
res = __uint2float_rn(i)
res = __uint2float_ru(i)
res = __uint2float_rz(i)
end subroutine

! CHECK-LABEL: _QPtest_uint2float_rx
! CHECK: %{{.*}} = fir.call @__nv_uint2float_rd(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i32) -> f32
! CHECK: %{{.*}} = fir.call @__nv_uint2float_rn(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i32) -> f32
! CHECK: %{{.*}} = fir.call @__nv_uint2float_ru(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i32) -> f32
! CHECK: %{{.*}} = fir.call @__nv_uint2float_rz(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i32) -> f32

attributes(global) subroutine test_uint2double_rn()
double precision :: res
integer :: i
res = __uint2double_rn(i)
end subroutine

! CHECK-LABEL: _QPtest_uint2double_rn
! CHECK: %{{.*}} = fir.call @__nv_uint2double_rn(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i32) -> f64

attributes(global) subroutine test_ull2dloat_rX()
real :: res
integer(8) :: i
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