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wasmer/lib/emscripten/emtests/test_simd6.c
2019-01-10 21:38:10 -08:00

74 lines
1.9 KiB
C
Vendored

/*
* Copyright 2016 The Emscripten Authors. All rights reserved.
* Emscripten is available under two separate licenses, the MIT license and the
* University of Illinois/NCSA Open Source License. Both these licenses can be
* found in the LICENSE file.
*/
#include <assert.h>
#include <stdio.h>
#include <string.h>
#include <xmmintrin.h>
/*
* x86 _mm_max_ps and _mm_min_ps have defined semantics or NaN and -0.0. Ensure
* that we implement them properly.
*/
volatile __m128 negzero;
volatile __m128 zero;
volatile __m128 nan_;
volatile __m128 one;
int main() {
negzero = _mm_set1_ps(-0.0);
zero = _mm_set1_ps(0.0);
one = _mm_set1_ps(1.0);
nan_ = _mm_set1_ps(__builtin_nan(""));
__m128 expected, result;
result = _mm_max_ps(negzero, zero);
expected = zero;
assert(memcmp(&result, &expected, sizeof(__m128)) == 0);
result = _mm_max_ps(zero, negzero);
expected = negzero;
assert(memcmp(&result, &expected, sizeof(__m128)) == 0);
result = _mm_max_ps(nan_, zero);
expected = zero;
assert(memcmp(&result, &expected, sizeof(__m128)) == 0);
result = _mm_max_ps(zero, nan_);
expected = nan_;
assert(memcmp(&result, &expected, sizeof(__m128)) == 0);
result = _mm_max_ps(zero, one);
expected = one;
assert(memcmp(&result, &expected, sizeof(__m128)) == 0);
result = _mm_min_ps(negzero, zero);
expected = zero;
assert(memcmp(&result, &expected, sizeof(__m128)) == 0);
result = _mm_min_ps(zero, negzero);
expected = negzero;
assert(memcmp(&result, &expected, sizeof(__m128)) == 0);
result = _mm_min_ps(nan_, zero);
expected = zero;
assert(memcmp(&result, &expected, sizeof(__m128)) == 0);
result = _mm_min_ps(zero, nan_);
expected = nan_;
assert(memcmp(&result, &expected, sizeof(__m128)) == 0);
result = _mm_min_ps(zero, one);
expected = zero;
assert(memcmp(&result, &expected, sizeof(__m128)) == 0);
printf("DONE");
return 0;
}