Viewing file:  pr80481.C (1.88 KB) -rw-r--r--
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// { dg-do compile { target { i?86-*-* x86_64-*-* } && { ! *-*-solaris* } } }
// { dg-options "-Ofast -funroll-loops -fopenmp -march=knl" }
// Disabling epilogues until we find a better way to deal with scans.
// { dg-additional-options "--param vect-epilogues-nomask=0" }
#include <math.h>
#include <xmmintrin.h>
#define max(a, b) ( (a) > (b) ? (a) : (b) )
struct Sdata {
float w;
float s;
float r;
float t;
float v;
};
extern int N1, N2, N3;
#define func(p, up, down) ((p)*(up) + (1.0f-(p)) * (down))
void foo (Sdata *in, int idx, float *out)
{
float* y1 = (float*)_mm_malloc(sizeof(float) * N1,16);
float* y2 = (float*)_mm_malloc(sizeof(float) * N1,16);
float* y3 = (float*)_mm_malloc(sizeof(float) * N1,16);
float* y4 = (float*)_mm_malloc(sizeof(float) * N1,16);
for (int k = idx; k < idx + N3; k++) {
float x1 = in[k].r;
float x2 = in[k].s;
float x3 = in[k].w;
float x4 = in[k].v;
float x5 = in[k].t;
x5 /= N2;
float u = exp(x4 * sqrt(x5));
float d = exp(-x4 * sqrt(x5));
float a = exp(x1 * x5);
float m = exp(-x1 * x5);
float p = (a - d) / (u - d);
y2[0] = x2;
y3[0] = float(1.f);
for (int i = 1; i <= N2; i++) {
y2[i] = u * y2[i - 1];
y3[i] = d * y3[i - 1];
}
#pragma omp simd
for (int i = 0; i <= N2; i++) {
y1[i] =
max((x3 - y2[N2 - i] * y3[i]), float(0.f));
}
for (int i = N2 - 1; i >= 0; i--) {
#pragma omp simd
for (int j = 0; j <= i; j++) {
y4[j] = func(p,y1[j],y1[j+1]) * m;
}
#pragma omp simd
for (int j = 0; j <= i; j++) {
float t1 = y2[i - j] * y3[j];
float t2 = max(x3 - t1, float(0.f));
y1[j] = max(t2, y4[j]);
}
}
out[k] = y1[0];
}
_mm_free(y1);
_mm_free(y2);
_mm_free(y3);
_mm_free(y4);
}
// { dg-final { scan-assembler-not "vmovaps\[^\n\r]*zmm\[0-9]+,\[^\n\r]*zmm\[0-9]+" } }
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