Re: Vortex and pointer sizes


Subject: Re: Vortex and pointer sizes
From: Aaron M. Ucko (amu@MIT.EDU)
Date: Sat Oct 20 2001 - 10:34:46 PDT


Craig Chambers <chambers@cs.washington.edu> writes:

> That would be nice, and we would have liked that too, but right now Vortex
> computes offsets in structures to access fields and the like, and it's difficult
> to avoid depending on the word size when doing this. We've thought about
> generating code that would compute the offset from the word size etc. at C
> compilation time, but we haven't pursued it, and things like alias analysis
> might get very hard.

Ah, okay. That makes sense; I just hadn't looked at the code closely
enough to notice that the option had such deep effects. In that case,
I suppose I'll just deal with producing two versions of the C code and
be glad that byte order isn't also an issue. :-)

Thanks for the explanation.

-- 
Aaron M. Ucko, KB1CJC <amu@mit.edu> (finger amu@monk.mit.edu)
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