https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78509
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to James Greenhalgh from comment #6)
> None of the logic was there in the original code, so there is not much to
> compare.
?? Since -fexcess-precision=standard has been introduced, gcc has the excess
precision notion. So there is something to compare.
E.g. try
float foo (float x, float y, float z)
{
return x + y + z;
}
before your changes with
-fdump-tree-gimple -m32 -msse2 -mno-80387 -fexcess-precision=standard
-fdump-tree-gimple -m32 -msse2 -mfpmath=387+sse -fexcess-precision=standard
-fdump-tree-gimple -m32 -msse2 -mfpmath=387 -fexcess-precision=standard
-fdump-tree-gimple -m32 -msse2 -mfpmath=sse -fexcess-precision=standard
-fdump-tree-gimple -m32 -msse -mno-sse2 -mfpmath=sse
-fexcess-precision=standard
to match the different cases in your hook, and compare that to what you get
with the current trunk.
