diff --git a/basis/compiler/cfg/graphviz/graphviz.factor b/extra/compiler/cfg/graphviz/graphviz.factor
similarity index 100%
rename from basis/compiler/cfg/graphviz/graphviz.factor
rename to extra/compiler/cfg/graphviz/graphviz.factor
diff --git a/basis/compiler/cfg/gvn/1.png b/extra/compiler/cfg/gvn/1.png
similarity index 100%
rename from basis/compiler/cfg/gvn/1.png
rename to extra/compiler/cfg/gvn/1.png
diff --git a/basis/compiler/cfg/gvn/2.png b/extra/compiler/cfg/gvn/2.png
similarity index 100%
rename from basis/compiler/cfg/gvn/2.png
rename to extra/compiler/cfg/gvn/2.png
diff --git a/basis/compiler/cfg/gvn/3.png b/extra/compiler/cfg/gvn/3.png
similarity index 100%
rename from basis/compiler/cfg/gvn/3.png
rename to extra/compiler/cfg/gvn/3.png
diff --git a/basis/compiler/cfg/gvn/4.png b/extra/compiler/cfg/gvn/4.png
similarity index 100%
rename from basis/compiler/cfg/gvn/4.png
rename to extra/compiler/cfg/gvn/4.png
diff --git a/basis/compiler/cfg/gvn/5.png b/extra/compiler/cfg/gvn/5.png
similarity index 100%
rename from basis/compiler/cfg/gvn/5.png
rename to extra/compiler/cfg/gvn/5.png
diff --git a/basis/compiler/cfg/gvn/alien/alien.factor b/extra/compiler/cfg/gvn/alien/alien.factor
similarity index 100%
rename from basis/compiler/cfg/gvn/alien/alien.factor
rename to extra/compiler/cfg/gvn/alien/alien.factor
diff --git a/basis/compiler/cfg/gvn/alien/authors.txt b/extra/compiler/cfg/gvn/alien/authors.txt
similarity index 100%
rename from basis/compiler/cfg/gvn/alien/authors.txt
rename to extra/compiler/cfg/gvn/alien/authors.txt
diff --git a/basis/compiler/cfg/gvn/comparisons/authors.txt b/extra/compiler/cfg/gvn/comparisons/authors.txt
similarity index 100%
rename from basis/compiler/cfg/gvn/comparisons/authors.txt
rename to extra/compiler/cfg/gvn/comparisons/authors.txt
diff --git a/basis/compiler/cfg/gvn/comparisons/comparisons.factor b/extra/compiler/cfg/gvn/comparisons/comparisons.factor
similarity index 100%
rename from basis/compiler/cfg/gvn/comparisons/comparisons.factor
rename to extra/compiler/cfg/gvn/comparisons/comparisons.factor
diff --git a/basis/compiler/cfg/gvn/expressions/expressions.factor b/extra/compiler/cfg/gvn/expressions/expressions.factor
similarity index 100%
rename from basis/compiler/cfg/gvn/expressions/expressions.factor
rename to extra/compiler/cfg/gvn/expressions/expressions.factor
diff --git a/basis/compiler/cfg/gvn/expressions/summary.txt b/extra/compiler/cfg/gvn/expressions/summary.txt
similarity index 100%
rename from basis/compiler/cfg/gvn/expressions/summary.txt
rename to extra/compiler/cfg/gvn/expressions/summary.txt
diff --git a/basis/compiler/cfg/gvn/folding/authors.txt b/extra/compiler/cfg/gvn/folding/authors.txt
similarity index 100%
rename from basis/compiler/cfg/gvn/folding/authors.txt
rename to extra/compiler/cfg/gvn/folding/authors.txt
diff --git a/basis/compiler/cfg/gvn/folding/folding.factor b/extra/compiler/cfg/gvn/folding/folding.factor
similarity index 100%
rename from basis/compiler/cfg/gvn/folding/folding.factor
rename to extra/compiler/cfg/gvn/folding/folding.factor
diff --git a/basis/compiler/cfg/gvn/graph/graph.factor b/extra/compiler/cfg/gvn/graph/graph.factor
similarity index 100%
rename from basis/compiler/cfg/gvn/graph/graph.factor
rename to extra/compiler/cfg/gvn/graph/graph.factor
diff --git a/basis/compiler/cfg/gvn/graph/summary.txt b/extra/compiler/cfg/gvn/graph/summary.txt
similarity index 100%
rename from basis/compiler/cfg/gvn/graph/summary.txt
rename to extra/compiler/cfg/gvn/graph/summary.txt
diff --git a/basis/compiler/cfg/gvn/gvn-tests.factor b/extra/compiler/cfg/gvn/gvn-tests.factor
similarity index 100%
rename from basis/compiler/cfg/gvn/gvn-tests.factor
rename to extra/compiler/cfg/gvn/gvn-tests.factor
diff --git a/basis/compiler/cfg/gvn/gvn.factor b/extra/compiler/cfg/gvn/gvn.factor
similarity index 100%
rename from basis/compiler/cfg/gvn/gvn.factor
rename to extra/compiler/cfg/gvn/gvn.factor
diff --git a/basis/compiler/cfg/gvn/math/authors.txt b/extra/compiler/cfg/gvn/math/authors.txt
similarity index 100%
rename from basis/compiler/cfg/gvn/math/authors.txt
rename to extra/compiler/cfg/gvn/math/authors.txt
diff --git a/basis/compiler/cfg/gvn/math/math.factor b/extra/compiler/cfg/gvn/math/math.factor
similarity index 100%
rename from basis/compiler/cfg/gvn/math/math.factor
rename to extra/compiler/cfg/gvn/math/math.factor
diff --git a/basis/compiler/cfg/gvn/misc/authors.txt b/extra/compiler/cfg/gvn/misc/authors.txt
similarity index 100%
rename from basis/compiler/cfg/gvn/misc/authors.txt
rename to extra/compiler/cfg/gvn/misc/authors.txt
diff --git a/basis/compiler/cfg/gvn/misc/misc.factor b/extra/compiler/cfg/gvn/misc/misc.factor
similarity index 100%
rename from basis/compiler/cfg/gvn/misc/misc.factor
rename to extra/compiler/cfg/gvn/misc/misc.factor
diff --git a/basis/compiler/cfg/gvn/rewrite/rewrite.factor b/extra/compiler/cfg/gvn/rewrite/rewrite.factor
similarity index 100%
rename from basis/compiler/cfg/gvn/rewrite/rewrite.factor
rename to extra/compiler/cfg/gvn/rewrite/rewrite.factor
diff --git a/basis/compiler/cfg/gvn/rewrite/summary.txt b/extra/compiler/cfg/gvn/rewrite/summary.txt
similarity index 100%
rename from basis/compiler/cfg/gvn/rewrite/summary.txt
rename to extra/compiler/cfg/gvn/rewrite/summary.txt
diff --git a/basis/compiler/cfg/gvn/simd/simd.factor b/extra/compiler/cfg/gvn/simd/simd.factor
similarity index 100%
rename from basis/compiler/cfg/gvn/simd/simd.factor
rename to extra/compiler/cfg/gvn/simd/simd.factor
diff --git a/basis/compiler/cfg/gvn/slots/authors.txt b/extra/compiler/cfg/gvn/slots/authors.txt
similarity index 100%
rename from basis/compiler/cfg/gvn/slots/authors.txt
rename to extra/compiler/cfg/gvn/slots/authors.txt
diff --git a/basis/compiler/cfg/gvn/slots/slots.factor b/extra/compiler/cfg/gvn/slots/slots.factor
similarity index 100%
rename from basis/compiler/cfg/gvn/slots/slots.factor
rename to extra/compiler/cfg/gvn/slots/slots.factor
diff --git a/basis/compiler/cfg/gvn/summary.txt b/extra/compiler/cfg/gvn/summary.txt
similarity index 100%
rename from basis/compiler/cfg/gvn/summary.txt
rename to extra/compiler/cfg/gvn/summary.txt