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[flang][cuda] Add interfaces for __drcp_rX #153681

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Merged
merged 2 commits into from
Aug 14, 2025
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[flang][cuda] Add interfaces for __drcp_rX #153681

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[flang][cuda] Add interfaces for __drcp_rX
clementval Aug 14, 2025
623e067
Merge branch 'main' into cuf_drcp
clementval Aug 14, 2025
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28 changes: 28 additions & 0 deletions flang/module/cudadevice.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -779,6 +779,34 @@ attributes(device) real(8) function sinpi(x) bind(c,name='__nv_sinpi')
end function
end interface

interface __drcp_rd
attributes(device) double precision function __drcp_rd(x) bind(c, name='__nv_drcp_rd')
!dir$ ignore_tkr (d) x
double precision, value :: x
end function
end interface

interface __drcp_rn
attributes(device) double precision function __drcp_rn(x) bind(c, name='__nv_drcp_rn')
!dir$ ignore_tkr (d) x
double precision, value :: x
end function
end interface

interface __drcp_ru
attributes(device) double precision function __drcp_ru(x) bind(c, name='__nv_drcp_ru')
!dir$ ignore_tkr (d) x
double precision, value :: x
end function
end interface

interface __drcp_rz
attributes(device) double precision function __drcp_rz(x) bind(c, name='__nv_drcp_rz')
!dir$ ignore_tkr (d) x
double precision, value :: x
end function
end interface

interface __dsqrt_rd
attributes(device) double precision function __dsqrt_rd(x) bind(c, name='__nv_dsqrt_rd')
!dir$ ignore_tkr (d) x
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17 changes: 17 additions & 0 deletions flang/test/Lower/CUDA/cuda-libdevice.cuf
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Expand Up @@ -116,6 +116,22 @@ 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
res = __drcp_rd(r)
res = __drcp_rn(r)
res = __drcp_ru(r)
res = __drcp_rz(r)
end subroutine

! CHECK-LABEL: _QPtest_drcp_rx
! CHECK: %{{.*}} = fir.call @__nv_drcp_rd(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> f64
! CHECK: %{{.*}} = fir.call @__nv_drcp_rn(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> f64
! CHECK: %{{.*}} = fir.call @__nv_drcp_ru(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> f64
! CHECK: %{{.*}} = fir.call @__nv_drcp_rz(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> f64

attributes(global) subroutine test_double2ull_rX()
integer(8) :: res
double precision :: r
Expand All @@ -130,3 +146,4 @@ end subroutine
! CHECK: %{{.*}} = fir.call @__nv_double2ull_rn(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> i64
! CHECK: %{{.*}} = fir.call @__nv_double2ull_ru(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> i64
! CHECK: %{{.*}} = fir.call @__nv_double2ull_rz(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f64) -> i64