6 @INC = ('.', '../lib', '../ext/B/t');
12 if (($Config::Config{'extensions'} !~ /\bB\b/) ){
13 print "1..0 # Skip -- Perl configured without B module\n";
16 # require 'test.pl'; # now done by OptreeCheck
19 use OptreeCheck; # ALSO DOES @ARGV HANDLING !!!!!!
25 skip "no perlio in this build", $tests unless $Config::Config{useperlio};
27 #################################
29 use constant { # see also t/op/gv.t line 282
43 sub myno () { return 1!=1 }
44 sub pi () { 3.14159 };
46 my $want = { # expected types, how value renders in-line, todos (maybe)
47 myfl => [ 'NV', myfl ],
48 myint => [ 'IV', myint ],
49 mystr => [ 'PV', '"'.mystr.'"' ],
50 myhref => [ 'RV', '\\\\HASH'],
51 myundef => [ 'NULL', ],
53 myaref => [ 'RV', '\\\\' ],
54 myglob => [ 'RV', '\\\\' ],
55 myrex => [ 'RV', '\\\\' ],
56 mysub => [ 'RV', '\\\\' ],
57 myunsub => [ 'RV', '\\\\' ],
58 # these are not inlined, at least not per BC::Concise
64 => qw ( Sunday Monday Tuesday Wednesday Thursday Friday Saturday );
67 $::{napier} = \2.71828; # counter-example (doesn't get optimized).
68 eval "sub napier ();";
71 # should be able to undefine constant::import here ???
73 # eval 'sub constant::import () {}';
74 # undef *constant::import::{CODE};
77 #################################
78 pass("RENDER CONSTANT SUBS RETURNING SCALARS");
80 for $func (sort keys %$want) {
81 # no strict 'refs'; # why not needed ?
82 checkOptree ( name => "$func() as a coderef",
85 expect => <<EOT_EOT, expect_nt => <<EONT_EONT);
86 is a constant sub, optimized to a $want->{$func}[0]
88 is a constant sub, optimized to a $want->{$func}[0]
93 pass("RENDER CALLS TO THOSE CONSTANT SUBS");
95 for $func (sort keys %$want) {
96 # print "# doing $func\n";
97 checkOptree ( name => "call $func",
99 ($want->{$func}[2]) ? ( todo => $want->{$func}[2]) : (),
100 bc_opts => '-nobanner',
101 expect => <<EOT_EOT, expect_nt => <<EONT_EONT);
102 3 <1> leavesub[2 refs] K/REFC,1 ->(end)
103 - <\@> lineseq KP ->3
104 1 <;> dbstate(main 833 (eval 44):1) v ->2
105 2 <\$> const[$want->{$func}[0] $want->{$func}[1]] s ->3
107 3 <1> leavesub[2 refs] K/REFC,1 ->(end)
108 - <\@> lineseq KP ->3
109 1 <;> dbstate(main 833 (eval 44):1) v ->2
110 2 <\$> const($want->{$func}[0] $want->{$func}[1]) s ->3
118 checkOptree ( name => 'myyes() as coderef',
119 code => sub () { 1==1 },
121 expect => <<'EOT_EOT', expect_nt => <<'EONT_EONT');
122 is a constant sub, optimized to a SPECIAL
124 is a constant sub, optimized to a SPECIAL
128 checkOptree ( name => 'myyes() as coderef',
129 prog => 'sub a() { 1==1 }; print a',
131 expect => <<'EOT_EOT', expect_nt => <<'EONT_EONT');
132 # 6 <@> leave[1 ref] vKP/REFC ->(end)
134 # 2 <;> nextstate(main 2 -e:1) v:{ ->3
136 # 3 <0> pushmark s ->4
137 # 4 <$> const[SPECIAL sv_yes] s ->5
139 # 6 <@> leave[1 ref] vKP/REFC ->(end)
141 # 2 <;> nextstate(main 2 -e:1) v:{ ->3
143 # 3 <0> pushmark s ->4
144 # 4 <$> const(SPECIAL sv_yes) s ->5
148 # Need to do this as a prog, not code, as only the first constant to use
149 # PL_sv_no actually gets to use the real thing - every one following is
151 checkOptree ( name => 'myno() as coderef',
152 prog => 'sub a() { 1!=1 }; print a',
154 expect => <<'EOT_EOT', expect_nt => <<'EONT_EONT');
155 # 6 <@> leave[1 ref] vKP/REFC ->(end)
157 # 2 <;> nextstate(main 2 -e:1) v:{ ->3
159 # 3 <0> pushmark s ->4
160 # 4 <$> const[SPECIAL sv_no] s ->5
162 # 6 <@> leave[1 ref] vKP/REFC ->(end)
164 # 2 <;> nextstate(main 2 -e:1) v:{ ->3
166 # 3 <0> pushmark s ->4
167 # 4 <$> const(SPECIAL sv_no) s ->5
171 checkOptree ( name => 'constant sub returning list',
174 expect => <<'EOT_EOT', expect_nt => <<'EONT_EONT');
175 # 3 <1> leavesub[2 refs] K/REFC,1 ->(end)
176 # - <@> lineseq K ->3
177 # 1 <;> nextstate(constant 61 constant.pm:118) v:*,& ->2
178 # 2 <0> padav[@list:FAKE:m:96] ->3
180 # 3 <1> leavesub[2 refs] K/REFC,1 ->(end)
181 # - <@> lineseq K ->3
182 # 1 <;> nextstate(constant 61 constant.pm:118) v:*,& ->2
183 # 2 <0> padav[@list:FAKE:m:71] ->3
188 printf "myint %d mystr %s myfl %f pi %f\n"
189 , myint, mystr, myfl, pi;
192 checkOptree ( name => 'call many in a print statement',
194 strip_open_hints => 1,
195 expect => <<'EOT_EOT', expect_nt => <<'EONT_EONT');
196 # 9 <1> leavesub[1 ref] K/REFC,1 ->(end)
197 # - <@> lineseq KP ->9
198 # 1 <;> nextstate(main 635 optree_constants.t:163) v:>,<,% ->2
200 # 2 <0> pushmark s ->3
201 # 3 <$> const[PV "myint %d mystr %s myfl %f pi %f\n"] s ->4
202 # 4 <$> const[IV 42] s ->5
203 # 5 <$> const[PV "hithere"] s ->6
204 # 6 <$> const[NV 1.414213] s ->7
205 # 7 <$> const[NV 3.14159] s ->8
207 # 9 <1> leavesub[1 ref] K/REFC,1 ->(end)
208 # - <@> lineseq KP ->9
209 # 1 <;> nextstate(main 635 optree_constants.t:163) v:>,<,% ->2
211 # 2 <0> pushmark s ->3
212 # 3 <$> const(PV "myint %d mystr %s myfl %f pi %f\n") s ->4
213 # 4 <$> const(IV 42) s ->5
214 # 5 <$> const(PV "hithere") s ->6
215 # 6 <$> const(NV 1.414213) s ->7
216 # 7 <$> const(NV 3.14159) s ->8
226 Optimized constant subs are stored as bare scalars in the stash
227 (package hash), which formerly held only GVs (typeglobs).
229 But you cant create them manually - you cant assign a scalar to a
230 stash element, and expect it to work like a constant-sub, even if you
233 This is a feature; alternative is too much action-at-a-distance. The
234 following test demonstrates - napier is not seen as a function at all,
235 much less an optimized one.
239 checkOptree ( name => 'not evertnapier',
242 expect => <<'EOT_EOT', expect_nt => <<'EONT_EONT');