Still fldl/fstpl use with fpmath=sse?

[Uros Bizjak]

Hello!

>Use of x87 has improved considerably with -mfpmath=sse, but
>I still see a lot of double moves going through the fp stack,
>like:
>
>.L8350:
>        fldl    (%esi)
>        fstpl   -40(%ebp)
>
These are generated by FP compares. Please read 
http://gcc.gnu.org/ml/gcc-patches/2005-01/msg00394.html

I tried to separate x87 and SSE compares, but they are so unbeliveably 
interwoven together that I lost my will to fix them... There is a 
mixture of x87 and SSE compare patterns, min/max patterns and especially 
SSE and x87 cmove patterns that somehow interfere and finally  produce a 
mixture of SSE and x87 instructions. You can try to add -mno-80387, but 
this can (and will) produce an ICE (PR 19307).

Uros.