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Re: i386 fp comaprisons fix version 2

> On Mon, Sep 18, 2000 at 04:18:46PM +0200, Jan Hubicka wrote:
> > 	* i386.md (fp_jcc_3, fp_jcc_4, jp_fcc_5): if_then_else operand
> > 	is VOIDmode.
> 
> This part I understand and approve.
> 
> > 	(fp_jcc_4): Refuse unordered comparisons.
> 
> This bit I don't.  Why?
Because otherwise the fp_jcc_4 will accept also comparisons resulting in the
fucom instruction, that can't handle memory operand, while the fp_jcc_4 allows
it.  The fp_jcc_5 is expected to handle that if I understand the code
correctly.

Honza
> 
> 
> r~
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