Viewing file:  pr79920.c (1.18 KB) -rw-r--r--
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/* { dg-additional-options "-O3 -fno-fast-math" } */
#include "tree-vect.h"
double __attribute__((noinline,noclone))
compute_integral (double w_1[18])
{
double A = 0;
double t33[2][6] = {{0.0, 0.0, 0.0, 0.0, 0.0, 0.0},
{0.0, 0.0, 0.0, 0.0, 0.0, 0.0}};
double t43[2] = {0.0, 0.0};
double t31[2][2] = {{1.0, 1.0}, {1.0, 1.0}};
double t32[2][3] = {{0.0, 0.0, 1.0}, {0.0, 0.0, 1.0}};
for (int ip_1 = 0; ip_1 < 2; ++ip_1)
{
#pragma GCC unroll 0
for (int i_0 = 0; i_0 < 6; ++i_0)
t33[ip_1][i_0] = ((w_1[i_0*3] * t32[ip_1][0])
+ (w_1[i_0*3+2] * t32[ip_1][2]));
t43[ip_1] = 2.0;
}
for (int i_0 = 0; i_0 < 6; ++i_0)
A += t43[1]*t33[1][i_0];
return A;
}
int main()
{
check_vect ();
double w_1[18] = {0., 1.0, 1.0,
0., 1.0, 1.0,
0., 1.0, 1.0,
0., 1.0, 1.0,
0., 1.0, 1.0,
0., 1.0, 1.0};
double A = compute_integral(w_1);
if (A != 12.0)
__builtin_abort ();
return 0;
}
/* { dg-final { scan-tree-dump-times {using an in-order \(fold-left\) reduction} 1 "vect" { target vect_double } } } */
/* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" { target { vect_double && { vect_perm && vect_hw_misalign } } } } } */
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