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[SYCL] Make swizzle::operator vec available for 1-elem swizzles #17870

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Merged
merged 3 commits into from
Apr 24, 2025
Merged

[SYCL] Make swizzle::operator vec available for 1-elem swizzles #17870

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5b2d4fa
[SYCL] Make `swizzle::operator vec` available for 1-elem swizzles
aelovikov-intel Feb 13, 2025
ae72217
Merge branch 'intel:sycl' into sw-1-elem
aelovikov-intel Apr 8, 2025
8a4ef79
Merge branch 'intel:sycl' into sw-1-elem
aelovikov-intel Apr 24, 2025
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14 changes: 9 additions & 5 deletions sycl/include/sycl/vector.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -309,8 +309,13 @@ template <typename Self> class ConversionToVecMixin {

public:
operator vec_ty() const {
vec_ty res{*static_cast<const Self *>(this)};
return res;
auto &self = *static_cast<const Self *>(this);
if constexpr (vec_ty::size() == 1)
// Avoid recursion by explicitly going through `vec(const DataT &)` ctor.
return vec_ty{static_cast<typename vec_ty::element_type>(self)};
else
// Uses `vec`'s variadic ctor.
return vec_ty{self};
}
};

Expand Down Expand Up @@ -398,9 +403,8 @@ class __SYCL_EBO Swizzle
public ApplyIf<sizeof...(Indexes) == 1,
ScalarConversionOperatorsMixIn<
Swizzle<IsConstVec, DataT, VecSize, Indexes...>>>,
public ApplyIf<sizeof...(Indexes) != 1,
ConversionToVecMixin<
Swizzle<IsConstVec, DataT, VecSize, Indexes...>>>,
public ConversionToVecMixin<
Swizzle<IsConstVec, DataT, VecSize, Indexes...>>,
public NamedSwizzlesMixinBoth<
Swizzle<IsConstVec, DataT, VecSize, Indexes...>> {
using Base = SwizzleBase<Swizzle<IsConstVec, DataT, VecSize, Indexes...>>;
Expand Down
4 changes: 2 additions & 2 deletions sycl/test/basic_tests/vectors/cxx_conversions.cpp
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Expand Up @@ -53,7 +53,7 @@ using sw_double_2 = decltype(std::declval<vec<double, 4>>().swizzle<1, 2>());
static_assert( std::is_invocable_v<decltype(f_half_v1), half>);
static_assert(EXCEPT_IN_PREVIEW std::is_invocable_v<decltype(f_half_v1), float>);
static_assert(EXCEPT_IN_PREVIEW std::is_invocable_v<decltype(f_half_v1), double>);
static_assert(EXCEPT_IN_PREVIEW std::is_invocable_v<decltype(f_half_v1), sw_half_1>);
static_assert( std::is_invocable_v<decltype(f_half_v1), sw_half_1>);
static_assert(EXCEPT_IN_PREVIEW std::is_invocable_v<decltype(f_half_v1), sw_float_1>);
static_assert(EXCEPT_IN_PREVIEW std::is_invocable_v<decltype(f_half_v1), sw_double_1>);
static_assert( std::is_invocable_v<decltype(f_half_v1), vec<half, 1>>);
Expand All @@ -64,7 +64,7 @@ static_assert(EXCEPT_IN_PREVIEW std::is_invocable_v<decltype(f_float_v1), half>)
static_assert( std::is_invocable_v<decltype(f_float_v1), float>);
static_assert( std::is_invocable_v<decltype(f_float_v1), double>);
static_assert(EXCEPT_IN_PREVIEW std::is_invocable_v<decltype(f_float_v1), sw_half_1>);
static_assert(EXCEPT_IN_PREVIEW std::is_invocable_v<decltype(f_float_v1), sw_float_1>);
static_assert( std::is_invocable_v<decltype(f_float_v1), sw_float_1>);
static_assert(EXCEPT_IN_PREVIEW std::is_invocable_v<decltype(f_float_v1), sw_double_1>);
static_assert(EXCEPT_IN_PREVIEW std::is_invocable_v<decltype(f_float_v1), vec<half, 1>>);
static_assert( std::is_invocable_v<decltype(f_float_v1), vec<float, 1>>);
Expand Down