https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111782
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[11/12/13/14 Regression] |[11/12/13/14 Regression]
|Extra move in complex |Extra move in double
|double argument and |argument and multiplication
|multiplication |and return
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Here is another testcase without complex (or even needing -ffast-math) being
involved:
```
struct cmplx
{
double r;
double i;
};
struct cmplx
f(double ar, double ai, double br, double bi, __complex double *r)
{
double t = ai * bi;
double t1 = ai * br;
double t2 = ar * bi + t1;
double t3 = ar * br - t;
return (struct cmplx){t3,t2};
}
```
This only shows up wih both arguments and returns and using the same registers.
I am 99% sure this does not show up that much really either.
