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11 lines
387 B
C++
11 lines
387 B
C++
// Compile with O3 and gcc4.7 and -march=corei7-avx for Sandy Bridge
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void maxArray(double* __restrict x, double* __restrict y) {
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#if __GNUC_MINOR__ >= 7 // 4.7+
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x = static_cast<double*>(__builtin_assume_aligned(x, 64));
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y = static_cast<double*>(__builtin_assume_aligned(y, 64));
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#endif
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for (int i = 0; i < 65536; i++) {
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x[i] = ((y[i] > x[i]) ? y[i] : x[i]);
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}
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}
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