1 USING: namespaces assocs sequences compiler.tree.builder
2 compiler.tree.dead-code compiler.tree.def-use compiler.tree
3 compiler.tree.combinators compiler.tree.propagation
4 compiler.tree.cleanup compiler.tree.escape-analysis
5 compiler.tree.tuple-unboxing compiler.tree.debugger
6 compiler.tree.recursive compiler.tree.normalization
7 compiler.tree.checker tools.test kernel math stack-checker.state
8 accessors combinators io prettyprint words sequences.deep
9 sequences.private arrays classes kernel.private ;
10 IN: compiler.tree.dead-code.tests
12 \ remove-dead-code must-infer
14 : count-live-values ( quot -- n )
26 [ #push? ] [ #introduce? ] bi or
27 [ out-d>> length + ] [ drop ] if
30 [ 3 ] [ [ 1 2 3 ] count-live-values ] unit-test
32 [ 1 ] [ [ drop ] count-live-values ] unit-test
34 [ 0 ] [ [ 1 drop ] count-live-values ] unit-test
36 [ 1 ] [ [ 1 2 drop ] count-live-values ] unit-test
38 [ 3 ] [ [ [ 1 ] [ 2 ] if ] count-live-values ] unit-test
40 [ 1 ] [ [ [ 1 ] [ 2 ] if drop ] count-live-values ] unit-test
42 [ 2 ] [ [ [ 1 ] [ dup ] if drop ] count-live-values ] unit-test
44 [ 2 ] [ [ 1 + ] count-live-values ] unit-test
46 [ 0 ] [ [ 1 2 + drop ] count-live-values ] unit-test
48 [ 3 ] [ [ 1 + 3 + ] count-live-values ] unit-test
50 [ 0 ] [ [ 1 2 + 3 + drop ] count-live-values ] unit-test
52 [ 4 ] [ [ [ 1 ] [ 2 ] if 3 + ] count-live-values ] unit-test
54 [ 1 ] [ [ [ 1 ] [ 2 ] if 3 + drop ] count-live-values ] unit-test
56 [ 0 ] [ [ [ ] call ] count-live-values ] unit-test
58 [ 1 ] [ [ [ 1 ] call ] count-live-values ] unit-test
60 [ 2 ] [ [ [ 1 ] [ 2 ] compose call ] count-live-values ] unit-test
62 [ 0 ] [ [ [ 1 ] [ 2 ] compose call + drop ] count-live-values ] unit-test
64 [ 3 ] [ [ 10 [ ] times ] count-live-values ] unit-test
66 : optimize-quot ( quot -- quot' )
76 "no-check" get [ dup check-nodes ] unless nodes>quot ;
78 [ [ drop 1 ] ] [ [ [ 1 ] dip drop ] optimize-quot ] unit-test
80 [ [ read drop 1 2 ] ] [ [ read [ 1 2 ] dip drop ] optimize-quot ] unit-test
82 [ [ over [ + ] dip ] ] [ [ [ + ] [ drop ] 2bi ] optimize-quot ] unit-test
84 [ [ [ ] [ ] if ] ] [ [ [ 1 ] [ 2 ] if drop ] optimize-quot ] unit-test
86 : flushable-1 ( a b -- c ) 2drop f ; flushable
87 : flushable-2 ( a b -- c ) 2drop f ; flushable
89 [ [ 2nip [ ] [ ] if ] ] [
90 [ [ flushable-1 ] [ flushable-2 ] if drop ] optimize-quot
93 : non-flushable-3 ( a b -- c ) 2drop f ;
95 [ [ [ 2drop ] [ non-flushable-3 drop ] if ] ] [
96 [ [ flushable-1 ] [ non-flushable-3 ] if drop ] optimize-quot
99 [ [ [ f ] [ f ] if ] ] [ [ [ f ] [ f ] if ] optimize-quot ] unit-test
101 [ ] [ [ dup [ 3 throw ] [ ] if ] optimize-quot drop ] unit-test
103 [ [ [ . ] [ drop ] if ] ] [ [ [ dup . ] [ ] if drop ] optimize-quot ] unit-test
105 [ [ f ] ] [ [ f dup [ ] [ ] if ] optimize-quot ] unit-test
107 [ ] [ [ over [ ] [ dup [ "X" throw ] [ "X" throw ] if ] if ] optimize-quot drop ] unit-test
109 : boo ( a b -- c ) 2drop f ;
111 [ [ dup 4 eq? [ nip ] [ boo ] if ] ] [ [ dup dup 4 eq? [ drop nip ] [ drop boo ] if ] optimize-quot ] unit-test
113 : squish ( quot -- quot' )
116 { [ dup word? ] [ dup vocabulary>> [ drop "REC" ] unless ] }
117 { [ dup wrapper? ] [ dup wrapped>> vocabulary>> [ drop "WRAP" ] unless ] }
122 : call-recursive-dce-1 ( a -- b )
123 [ call-recursive-dce-1 drop ] [ call-recursive-dce-1 ] bi ; inline recursive
125 [ [ drop "WRAP" [ "REC" drop "REC" ] label ] ] [
126 [ call-recursive-dce-1 ] optimize-quot squish
129 : produce-a-value ( -- a ) f ;
131 : call-recursive-dce-2 ( a -- b )
133 produce-a-value dup . call-recursive-dce-2 ; inline recursive
135 [ [ "WRAP" [ produce-a-value . "REC" ] label ] ] [
136 [ f call-recursive-dce-2 drop ] optimize-quot squish
139 [ [ "WRAP" [ produce-a-value . "REC" ] label ] ] [
140 [ f call-recursive-dce-2 ] optimize-quot squish
143 : call-recursive-dce-3 ( a -- )
144 call-recursive-dce-3 ; inline recursive
146 [ [ [ drop "WRAP" [ "REC" ] label ] [ . ] if ] ] [
147 [ [ call-recursive-dce-3 ] [ . ] if ] optimize-quot squish
150 [ [ drop "WRAP" [ "REC" ] label ] ] [
151 [ call-recursive-dce-3 ] optimize-quot squish
154 : call-recursive-dce-4 ( a -- b )
155 call-recursive-dce-4 ; inline recursive
157 [ [ drop "WRAP" [ "REC" ] label ] ] [
158 [ call-recursive-dce-4 ] optimize-quot squish
161 [ [ drop "WRAP" [ "REC" ] label ] ] [
162 [ call-recursive-dce-4 drop ] optimize-quot squish
165 [ ] [ [ f call-recursive-dce-3 swap ] optimize-quot drop ] unit-test
167 : call-recursive-dce-5 ( -- ) call-recursive-dce-5 ; inline recursive
169 [ ] [ [ call-recursive-dce-5 swap ] optimize-quot drop ] unit-test
171 [ ] [ [ [ 0 -rot set-nth-unsafe ] curry (each-integer) ] optimize-quot drop ] unit-test
173 : call-recursive-dce-6 ( i quot: ( i -- ? ) -- i )
174 dup call [ drop ] [ call-recursive-dce-6 ] if ; inline recursive
176 [ ] [ [ [ ] curry [ ] swap compose call-recursive-dce-6 ] optimize-quot drop ] unit-test
178 [ ] [ [ [ ] rot [ . ] curry pick [ roll 2drop call ] [ 2nip call ] if ] optimize-quot drop ] unit-test
180 [ [ drop ] ] [ [ array? drop ] optimize-quot ] unit-test
182 [ [ drop ] ] [ [ array instance? drop ] optimize-quot ] unit-test
184 [ [ drop ] ] [ [ { integer } declare f <array> drop ] optimize-quot ] unit-test
186 [ [ f <array> drop ] ] [ [ f <array> drop ] optimize-quot ] unit-test
188 : call-recursive-dce-7 ( obj -- elt ? )
189 dup 5 = [ t ] [ dup [ call-recursive-dce-7 ] [ drop f f ] if ] if ; inline recursive
191 [ ] [ [ call-recursive-dce-7 ] optimize-quot drop ] unit-test