478e571a3e
This adds support for FMS and FMS conjugated to the slp pattern matcher.
Example of matches:
#include <stdio.h>
#include <complex.h>
#define N 200
#define ROT
#define TYPE float
#define TYPE2 float
void g (TYPE2 complex a[restrict N], TYPE complex b[restrict N], TYPE complex c[restrict N])
{
for (int i=0; i < N; i++)
{
c[i] -= a[i] * (b[i] ROT);
}
}
void g_f1 (TYPE2 complex a[restrict N], TYPE complex b[restrict N], TYPE complex c[restrict N])
{
for (int i=0; i < N; i++)
{
c[i] -= conjf (a[i]) * (b[i]);
}
}
void g_s1 (TYPE2 complex a[restrict N], TYPE complex b[restrict N], TYPE complex c[restrict N])
{
for (int i=0; i < N; i++)
{
c[i] -= a[i] * conjf (b[i] ROT);
}
}
void caxpy_sub(double complex * restrict y, double complex * restrict x, size_t N, double complex f) {
for (size_t i = 0; i < N; ++i)
y[i] -= x[i]* f;
}
gcc/ChangeLog:
* internal-fn.def (COMPLEX_FMS, COMPLEX_FMS_CONJ): New.
* optabs.def (cmls_optab, cmls_conj_optab): New.
* doc/md.texi: Document them.
* tree-vect-slp-patterns.c (class complex_fms_pattern,
complex_fms_pattern::matches, complex_fms_pattern::recognize,
complex_fms_pattern::build): New.
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