diff --git a/basis/compiler/cfg/value-numbering/propagate/propagate.factor b/basis/compiler/cfg/value-numbering/propagate/propagate.factor
deleted file mode 100644
index d5c9830c0b..0000000000
--- a/basis/compiler/cfg/value-numbering/propagate/propagate.factor
+++ /dev/null
@@ -1,69 +0,0 @@
-! Copyright (C) 2008 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: namespaces assocs sequences kernel accessors
-compiler.cfg.instructions compiler.cfg.value-numbering.graph ;
-IN: compiler.cfg.value-numbering.propagate
-
-! If two vregs compute the same value, replace references to
-! the latter with the former.
-
-: resolve ( vreg -- vreg' ) vreg>vn vn>vreg ; inline
-
-GENERIC: propagate ( insn -- insn )
-
-M: ##effect propagate
-    [ resolve ] change-src ;
-
-M: ##unary propagate
-    [ resolve ] change-src ;
-
-M: ##binary propagate
-    [ resolve ] change-src1
-    [ resolve ] change-src2 ;
-
-M: ##binary-imm propagate
-    [ resolve ] change-src1 ;
-
-M: ##slot propagate
-    [ resolve ] change-obj
-    [ resolve ] change-slot ;
-
-M: ##slot-imm propagate
-    [ resolve ] change-obj ;
-
-M: ##set-slot propagate
-    call-next-method
-    [ resolve ] change-obj
-    [ resolve ] change-slot ;
-
-M: ##string-nth propagate
-    [ resolve ] change-obj
-    [ resolve ] change-index ;
-
-M: ##set-slot-imm propagate
-    call-next-method
-    [ resolve ] change-obj ;
-
-M: ##alien-getter propagate
-    call-next-method
-    [ resolve ] change-src ;
-
-M: ##alien-setter propagate
-    call-next-method
-    [ resolve ] change-value ;
-
-M: ##conditional-branch propagate
-    [ resolve ] change-src1
-    [ resolve ] change-src2 ;
-
-M: ##compare-imm-branch propagate
-    [ resolve ] change-src1 ;
-
-M: ##dispatch propagate
-    [ resolve ] change-src ;
-
-M: ##fixnum-overflow propagate
-    [ resolve ] change-src1
-    [ resolve ] change-src2 ;
-
-M: insn propagate ;
diff --git a/basis/compiler/cfg/value-numbering/propagate/summary.txt b/basis/compiler/cfg/value-numbering/propagate/summary.txt
deleted file mode 100644
index fd56a8e099..0000000000
--- a/basis/compiler/cfg/value-numbering/propagate/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Propagation pass to update code after value numbering