mirror of
https://github.com/fluencelabs/wasmer
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44 lines
1.0 KiB
C++
44 lines
1.0 KiB
C++
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// Copyright 2014 The Emscripten Authors. All rights reserved.
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// Emscripten is available under two separate licenses, the MIT license and the
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// University of Illinois/NCSA Open Source License. Both these licenses can be
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// found in the LICENSE file.
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#include <xmmintrin.h>
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#include <stdio.h>
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#include <string>
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__m128 getSomeSIMD() {
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union { __m128 m; float val[4]; } u;
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u.val[0] = 1;
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u.val[1] = 3.14159;
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u.val[2] = -124234234.5;
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u.val[3] = 99;
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return u.m;
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}
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__attribute__((noinline)) std::string to_str(__m128 m)
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{
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union { __m128 m; float val[4]; } u;
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u.m = m;
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char str[256];
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sprintf(str, "[%f,%f,%f,%f]", u.val[3], u.val[2], u.val[1], u.val[0]);
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printf("%s\n", str);
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return "?";
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}
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int main()
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{
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// part 1
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__m128 m1 = _mm_set1_ps(1.f);
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__m128 m2 = _mm_set1_ps(2.f);
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__m128 ret = _mm_add_ps(m1, m2);
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to_str(m1).c_str(), to_str(m2).c_str(), to_str(ret).c_str();
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// part 2
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typedef __m128 (*type)();
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volatile type ptr;
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ptr = &getSomeSIMD;
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to_str(ptr());
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}
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