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.text
.balign 4
.global vec_daxpy
# void
# vec_daxpy(size_t n, const double a, const double *x, const double *y, double* z)
# {
# size_t i;
# for (i=0; i<n; i++)
# z[i] = a * x[i] + y[i];
# }
#
# register arguments:
# a0 n
# fa0 a
# a1 x
# a2 y
# a3 z
vec_daxpy:
vsetvli a4, a0, e64, m8, ta, ma
vle64.v v0, (a1)
sub a0, a0, a4
slli a4, a4, 3
add a1, a1, a4
vle64.v v8, (a2)
vfmacc.vf v8, fa0, v0
vse64.v v8, (a3)
add a2, a2, a4
add a3, a3, a4
bnez a0, vec_daxpy
ret
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