[Bug target/18900] Don't use fp regs for mem moves without explicit use of fp

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=18900

Segher Boessenkool <segher at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
                 CC|                            |segher at gcc dot gnu.org
         Resolution|---                         |FIXED

--- Comment #8 from Segher Boessenkool <segher at gcc dot gnu.org> ---
I think a long time ago (early 4.x era?) something went in to always
prefer integer registers for copying.  With the following testcase,
the only floating point use is for the structs with doubles.  (-m32
-mcpu=603 or similar).  Closing as fixed.

===
long long a, b;
struct { int x[2]; } sa, sb;
struct { char x[8]; } ta, tb;
struct { int x; int y; } ua, ub;
struct { float x; float y; } va, vb;
struct { double x; } wa, wb;
struct { double x[1]; } xa, xb;

void f(void)
{
        a = b;
        sa = sb;
        ta = tb;
        ua = ub;
        va = vb;
        wa = wb;
        xa = xb;
}
===