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[flang][cuda] Add missing interface for __powf #153294

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Merged
merged 2 commits into from
Aug 13, 2025
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Merged

[flang][cuda] Add missing interface for __powf #153294

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e37b4d0
[flang][cuda] Add missing interface for __powf
clementval Aug 12, 2025
135e247
Merge branch 'main' into cuf_powf
clementval Aug 13, 2025
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7 changes: 7 additions & 0 deletions flang/module/cudadevice.f90
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Expand Up @@ -770,6 +770,13 @@ attributes(device) real(8) function sinpi(x) bind(c,name='__nv_sinpi')
end function
end interface

interface
attributes(device) real(4) function __powf(x,y) bind(c, name='__nv_powf')
!dir$ ignore_tkr (d) x, y
real(4), value :: x, y
end function
end interface

interface __brev
attributes(device) integer function __brev(i) bind(c, name='__nv_brev')
!dir$ ignore_tkr (d) i
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2 changes: 2 additions & 0 deletions flang/test/Lower/CUDA/cuda-device-proc.cuf
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Expand Up @@ -63,6 +63,7 @@ attributes(global) subroutine devsub()
af = __cosf(af)
ai = __mul24(ai, ai)
ai = __umul24(ai, ai)
af = __powf(af, af)
end

! CHECK-LABEL: func.func @_QPdevsub() attributes {cuf.proc_attr = #cuf.cuda_proc<global>}
Expand Down Expand Up @@ -114,6 +115,7 @@ end
! CHECK: %{{.*}} = fir.call @__nv_cosf(%{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f32) -> f32
! 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
! CHECK: %{{.*}} = fir.call @__nv_powf(%{{.*}}, %{{.*}}) proc_attrs<bind_c> fastmath<contract> : (f32, f32) -> f32

subroutine host1()
integer, device :: a(32)
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