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Fix nvcc-imposed UB in constexpr functions #17534

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merged 7 commits into from
Dec 9, 2024
Merged

Fix nvcc-imposed UB in constexpr functions #17534

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bd15c0c
time utils
vuule Dec 5, 2024
bc383ab
RLE stream size
vuule Dec 5, 2024
7beb6b4
Merge branch 'branch-25.02' into remove-constexpr-with-cudf_fail
vuule Dec 5, 2024
e745be8
style
vuule Dec 6, 2024
001f3be
Merge branch 'remove-constexpr-with-cudf_fail' of https://github.com/…
vuule Dec 6, 2024
3bbfdba
instances in include
vuule Dec 6, 2024
db95935
Update Copyright date in device_operators.cuh
mythrocks Dec 7, 2024
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16 changes: 16 additions & 0 deletions cpp/include/cudf/detail/utilities/device_operators.cuh
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Original file line number Diff line number Diff line change
Expand Up @@ -83,7 +83,11 @@ struct DeviceSum {
template <typename T, std::enable_if_t<cudf::is_fixed_point<T>()>* = nullptr>
static constexpr T identity()
{
#ifndef __CUDA_ARCH__
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CUDF_FAIL("fixed_point does not yet support device operator identity");
#else
CUDF_UNREACHABLE("fixed_point does not yet support device operator identity");
#endif
return T{};
}
};
Expand Down Expand Up @@ -141,7 +145,11 @@ struct DeviceMin {
template <typename T, std::enable_if_t<cudf::is_fixed_point<T>()>* = nullptr>
static constexpr T identity()
{
#ifndef __CUDA_ARCH__
CUDF_FAIL("fixed_point does not yet support DeviceMin identity");
#else
CUDF_UNREACHABLE("fixed_point does not yet support DeviceMin identity");
#endif
return cuda::std::numeric_limits<T>::max();
}

Expand Down Expand Up @@ -189,7 +197,11 @@ struct DeviceMax {
template <typename T, std::enable_if_t<cudf::is_fixed_point<T>()>* = nullptr>
static constexpr T identity()
{
#ifndef __CUDA_ARCH__
CUDF_FAIL("fixed_point does not yet support DeviceMax identity");
#else
CUDF_UNREACHABLE("fixed_point does not yet support DeviceMax identity");
#endif
return cuda::std::numeric_limits<T>::lowest();
}

Expand Down Expand Up @@ -225,7 +237,11 @@ struct DeviceProduct {
template <typename T, std::enable_if_t<cudf::is_fixed_point<T>()>* = nullptr>
static constexpr T identity()
{
#ifndef __CUDA_ARCH__
CUDF_FAIL("fixed_point does not yet support DeviceProduct identity");
#else
CUDF_UNREACHABLE("fixed_point does not yet support DeviceProduct identity");
#endif
return T{1, numeric::scale_type{0}};
}
};
Expand Down
2 changes: 2 additions & 0 deletions cpp/include/cudf/utilities/span.hpp
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Expand Up @@ -417,7 +417,9 @@ class base_2dspan {
constexpr base_2dspan(RowType<T, dynamic_extent> flat_view, size_t columns)
: _flat{flat_view}, _size{columns == 0 ? 0 : flat_view.size() / columns, columns}
{
#ifndef __CUDA_ARCH__
CUDF_EXPECTS(_size.first * _size.second == flat_view.size(), "Invalid 2D span size");
#endif
}

/**
Expand Down
2 changes: 1 addition & 1 deletion cpp/src/io/orc/writer_impl.cu
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Expand Up @@ -506,7 +506,7 @@ size_t max_varint_size()
return cudf::util::div_rounding_up_unsafe(sizeof(T) * 8, 7);
}

constexpr size_t RLE_stream_size(TypeKind kind, size_t count)
size_t RLE_stream_size(TypeKind kind, size_t count)
{
using cudf::util::div_rounding_up_unsafe;
constexpr auto byte_rle_max_len = 128;
Expand Down
6 changes: 3 additions & 3 deletions cpp/src/io/utilities/time_utils.cuh
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2021, NVIDIA CORPORATION.
* Copyright (c) 2021-2024, NVIDIA CORPORATION.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
Expand Down Expand Up @@ -32,7 +32,7 @@ static const __device__ __constant__ int32_t powers_of_ten[10] = {

struct get_period {
template <typename T>
constexpr int32_t operator()()
int32_t operator()()
{
if constexpr (is_chrono<T>()) { return T::period::den; }
CUDF_FAIL("Invalid, non chrono type");
Expand All @@ -42,7 +42,7 @@ struct get_period {
/**
* @brief Function that translates cuDF time unit to clock frequency
*/
constexpr int32_t to_clockrate(type_id timestamp_type_id)
inline int32_t to_clockrate(type_id timestamp_type_id)
{
return timestamp_type_id == type_id::EMPTY
? 0
Expand Down
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