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[flang][cuda] Add bind name for __mul24 and __umul24 #153307

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Merged
merged 1 commit into from
Aug 13, 2025
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[flang][cuda] Add bind name for __mul24 and __umul24 #153307

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14 changes: 10 additions & 4 deletions flang/module/cudadevice.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -372,6 +372,12 @@ attributes(device) subroutine sincospi(x, y, z) bind(c,name='__nv_sincospi')
procedure :: sincospi
end interface

interface
attributes(device) real(4) function __cosf(x) bind(c, name='__nv_cosf')
real(4), value :: x
end function
end interface

interface
attributes(device) real(4) function cospif(x) bind(c,name='__nv_cospif')
real(4), value :: x
Expand Down Expand Up @@ -431,14 +437,14 @@ attributes(device) real(8) function sinpi(x) bind(c,name='__nv_sinpi')
end interface

interface __float2half_rn
attributes(device) real(2) function __float2half_rn(r) bind(c)
attributes(device) real(2) function __float2half_rn(r) bind(c, name='__nv_float2half_rn')
!dir$ ignore_tkr (d) r
real, value :: r
end function
end interface

interface __half2float
attributes(device) real function __half2float(i) bind(c)
attributes(device) real function __half2float(i) bind(c, name='__nv_half2float')
!dir$ ignore_tkr (d) i
real(2), value :: i
end function
Expand Down Expand Up @@ -676,14 +682,14 @@ attributes(device) real(8) function sinpi(x) bind(c,name='__nv_sinpi')
end interface

interface __mul24
attributes(device) integer function __mul24(i,j) bind(c)
attributes(device) integer function __mul24(i,j) bind(c, name='__nv_mul24')
!dir$ ignore_tkr (d) i, (d) j
integer, value :: i,j
end function
end interface

interface __umul24
attributes(device) integer function __umul24(i,j) bind(c)
attributes(device) integer function __umul24(i,j) bind(c, name='__nv_umul24')
!dir$ ignore_tkr (d) i, (d) j
integer, value :: i,j
end function
Expand Down
7 changes: 7 additions & 0 deletions flang/test/Lower/CUDA/cuda-device-proc.cuf
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Expand Up @@ -58,6 +58,9 @@ attributes(global) subroutine devsub()
res = __ffs(al)
res = __brev(ai)
resl = __brev(al)

ai = __mul24(ai, ai)
ai = __umul24(ai, ai)
end

! CHECK-LABEL: func.func @_QPdevsub() attributes {cuf.proc_attr = #cuf.cuda_proc<global>}
Expand Down Expand Up @@ -105,6 +108,10 @@ end
! CHECK: %{{.*}} = fir.call @__nv_brev(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i32) -> i32
! CHECK: %{{.*}} = fir.call @__nv_brevll(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i64) -> i64

! CHECK: %{{.*}} = fir.call @__nv_mul24(%{{.*}}, %{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i32, i32) -> i32
! CHECK: %{{.*}} = fir.call @__nv_umul24(%{{.*}}, %{{.*}}) proc_attrs<bind_c> fastmath<contract> : (i32, i32) -> i32


subroutine host1()
integer, device :: a(32)
integer, device :: ret
Expand Down