Code sinking for trees
Copyright (C) 2001-2026 Free Software Foundation, Inc.
Contributed by Daniel Berlin <dan@dberlin.org>
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TODO:
1. Sinking store only using scalar promotion (IE without moving the RHS):
*q = p;
p = p + 1;
if (something)
*q = <not p>;
else
y = *q;
should become
sinktemp = p;
p = p + 1;
if (something)
*q = <not p>;
else
{
*q = sinktemp;
y = *q
}
Store copy propagation will take care of the store elimination above.
2. Sinking using Partial Dead Code Elimination. 
1.18.0