Suppressing code motion of constant values...

[Joern Rennecke]

> There was a code snippet and discussion of the idea of
> suppressing hoisting constants outside of loops at
> lower optimization levels.
> 
> I thought at the time that this wasn't a winner for me, but in
> looking at some generated code for the SHARC DSP chip, it
> appears that this is causing me to use more registers than
> I need.
> 
> Can someone resend that code fragment?  It was a patch to loop.c
> if I remember correctly.

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