From d286a7f4262869f6bd6a172443f07c5c708e6b6d Mon Sep 17 00:00:00 2001
From: Slava Pestov <slava@shill.local>
Date: Mon, 3 Aug 2009 10:31:00 -0500
Subject: [PATCH] compiler.cfg.critical-edges: no longer neededed

---
 .../critical-edges-tests.factor               | 37 -------------------
 .../cfg/critical-edges/critical-edges.factor  | 29 ---------------
 2 files changed, 66 deletions(-)
 delete mode 100644 basis/compiler/cfg/critical-edges/critical-edges-tests.factor
 delete mode 100644 basis/compiler/cfg/critical-edges/critical-edges.factor

diff --git a/basis/compiler/cfg/critical-edges/critical-edges-tests.factor b/basis/compiler/cfg/critical-edges/critical-edges-tests.factor
deleted file mode 100644
index 88383e2e1e..0000000000
--- a/basis/compiler/cfg/critical-edges/critical-edges-tests.factor
+++ /dev/null
@@ -1,37 +0,0 @@
-USING: accessors assocs compiler.cfg
-compiler.cfg.critical-edges compiler.cfg.debugger
-compiler.cfg.instructions compiler.cfg.predecessors
-compiler.cfg.registers cpu.architecture kernel namespaces
-sequences tools.test compiler.cfg.utilities ;
-IN: compiler.cfg.critical-edges.tests
-
-! Make sure we update phi nodes when splitting critical edges
-
-: test-critical-edges ( -- )
-    cfg new 0 get >>entry
-    compute-predecessors
-    split-critical-edges ;
-
-V{
-    T{ ##peek f V int-regs 0 D 0 }
-    T{ ##branch }
-} 0 test-bb
-
-V{
-    T{ ##peek f V int-regs 1 D 1 }
-    T{ ##branch }
-} 1 test-bb
-
-V{
-    T{ ##phi f V int-regs 2 H{ { 0 V int-regs 0 } { 1 V int-regs 1 } } }
-    T{ ##return }
-} 2 test-bb
-
-0 { 1 2 } edges
-1 2 edge
-
-[ ] [ test-critical-edges ] unit-test
-
-[ t ] [ 0 get successors>> second successors>> first 2 get eq? ] unit-test
-
-[ V int-regs 0 ] [ 2 get instructions>> first inputs>> 0 get successors>> second swap at ] unit-test
\ No newline at end of file
diff --git a/basis/compiler/cfg/critical-edges/critical-edges.factor b/basis/compiler/cfg/critical-edges/critical-edges.factor
deleted file mode 100644
index 2a42df4bbf..0000000000
--- a/basis/compiler/cfg/critical-edges/critical-edges.factor
+++ /dev/null
@@ -1,29 +0,0 @@
-! Copyright (C) 2009 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-USING: kernel math accessors sequences locals assocs fry
-compiler.cfg compiler.cfg.rpo compiler.cfg.utilities ;
-IN: compiler.cfg.critical-edges
-
-: critical-edge? ( from to -- ? )
-    [ successors>> length 1 > ] [ predecessors>> length 1 > ] bi* and ;
-
-: new-key ( new-key old-key assoc -- )
-    [ delete-at* ] keep '[ swap _ set-at ] [ 2drop ] if ;
-
-:: update-phis ( from to bb -- )
-    ! Any phi nodes in 'to' which reference 'from'
-    ! should now reference 'bb'.
-    to [ [ bb from ] dip inputs>> new-key ] each-phi ;
-
-: split-critical-edge ( from to -- )
-    f <simple-block> [ insert-basic-block ] [ update-phis ] 3bi ; 
-
-: split-critical-edges ( cfg -- )
-    dup [
-        dup successors>> [
-            2dup critical-edge?
-            [ split-critical-edge ] [ 2drop ] if
-        ] with each
-    ] each-basic-block
-    cfg-changed
-    drop ;
\ No newline at end of file