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Re: Non-call exceptions versus cse
- From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
- To: aph at redhat dot com
- Cc: gcc-patches at gcc dot gnu dot org, rth at redhat dot com
- Date: Mon, 25 Nov 02 14:44:50 EST
- Subject: Re: Non-call exceptions versus cse
The idea is that
{
int tmp = <may trap operation>;
var = tmp;
}
should not update var if the operation traps.
That's expensive to guarantee. For which language do we have to do that?
It's like -mieee on Alpha ...