Re: grokfield miscompiled with -O9

[Alexandre Oliva <oliva at lsd dot ic dot unicamp dot br>]

On Jan 11, 2000, Richard Henderson <rth@cygnus.com> wrote:

> I'm moderately surprised that he got better results from disabling this.  

>      if (!cse_not_expected)
>        tmp = gen_reg_rtx (QImode);
>      else
>        tmp = gen_lowpart (QImode, dest);

Do you mean it should get worse or it should remain that same?  If the
latter, it would be nice to get rid of the difference, as it would
make GCC somewhat faster (less pseudos).  If the former, could you
please illuminate me with the reasons? :-)

-- 
Alexandre Oliva http://www.ic.unicamp.br/~oliva IC-Unicamp, Bra[sz]il
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