373299533a
Summary: This patch adds a new macro _LIBCPP_HAS_NO_VECTOR_EXTENSION for detecting whether a vector extension (\_\_attribute\_\_((vector_size(num_bytes)))) is available. On the top of that, this patch implements the following API: * all constructors * operator[] * copy_from * copy_to It also defines simd_abi::native to use vector extension, if available. In GCC and Clang, certain values with vector extension are passed by registers, instead of memory. Based on D41148. Reviewers: mclow.lists, EricWF Subscribers: cfe-commits, MaskRay, lichray, sanjoy Differential Revision: https://reviews.llvm.org/D41376 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@338309 91177308-0d34-0410-b5e6-96231b3b80d8
29 lines
911 B
C++
29 lines
911 B
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03, c++11, c++14
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// <experimental/simd>
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//
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// [simd.class]
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// simd() = default;
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#include <cstdint>
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#include <experimental/simd>
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namespace ex = std::experimental::parallelism_v2;
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int main() {
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static_assert(ex::native_simd<int32_t>().size() > 0, "");
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static_assert(ex::fixed_size_simd<int32_t, 4>().size() == 4, "");
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static_assert(ex::fixed_size_simd<int32_t, 5>().size() == 5, "");
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static_assert(ex::fixed_size_simd<int32_t, 1>().size() == 1, "");
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static_assert(ex::fixed_size_simd<char, 32>().size() == 32, "");
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}
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