optimization/9052: in C code, "if" statement fails to execute if optimized

[Toon Moene]

Eric Botcazou wrote:

>>How about 8445, 9654?  Those are "bugs" that disappear with
>>-ffloat-store, too.  Like I said, I don't know enough about floating
>>point numbers...

> Toon seems to think that PR fortran/8445 is indeed the same problem. But it's 
> up to him to decide whether to close the bug.
> 
> PR optimization/9654 is exactly the same problem: using FP registers on x86 
> adds extra-precision which can modify comparison results. Nothing can be done 
> about that, other than using -ffloat-store which is precisely intended to 
> address the issue.

Exactly - however, I feel I cannot close these reports because I do not 
have access to x86 hardware anymore, so I cannot easily test whether 
they indeed *are* -ffloat-store issues ....

-- 
Toon Moene - mailto:toon@moene.indiv.nluug.nl - phoneto: +31 346 214290
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