theory Abs_Int_Tests
imports ACom
begin
subsection "Test Programs"
text{* For constant propagation: *}
text{* Straight line code: *}
definition "test1_const =
''y'' ::= N 7;
''z'' ::= Plus (V ''y'') (N 2);
''y'' ::= Plus (V ''x'') (N 0)"
text{* Conditional: *}
definition "test2_const =
IF Less (N 41) (V ''x'') THEN ''x'' ::= N 5 ELSE ''x'' ::= N 5"
text{* Conditional, test is relevant: *}
definition "test3_const =
''x'' ::= N 42;
IF Less (N 41) (V ''x'') THEN ''x'' ::= N 5 ELSE ''x'' ::= N 6"
text{* While: *}
definition "test4_const =
''x'' ::= N 0; WHILE Bc True DO ''x'' ::= N 0"
text{* While, test is relevant: *}
definition "test5_const =
''x'' ::= N 0; WHILE Less (V ''x'') (N 1) DO ''x'' ::= N 1"
text{* Iteration is needed: *}
definition "test6_const =
''x'' ::= N 0; ''y'' ::= N 0; ''z'' ::= N 2;
WHILE Less (V ''x'') (N 1) DO (''x'' ::= V ''y''; ''y'' ::= V ''z'')"
text{* For intervals: *}
definition "test1_ivl =
''y'' ::= N 7;
IF Less (V ''x'') (V ''y'')
THEN ''y'' ::= Plus (V ''y'') (V ''x'')
ELSE ''x'' ::= Plus (V ''x'') (V ''y'')"
definition "test2_ivl =
WHILE Less (V ''x'') (N 100)
DO ''x'' ::= Plus (V ''x'') (N 1)"
definition "test3_ivl =
''x'' ::= N 7;
WHILE Less (V ''x'') (N 100)
DO ''x'' ::= Plus (V ''x'') (N 1)"
definition "test4_ivl =
''x'' ::= N 0; ''y'' ::= N 0;
WHILE Less (V ''x'') (N 11)
DO (''x'' ::= Plus (V ''x'') (N 1); ''y'' ::= Plus (V ''y'') (N 1))"
definition "test5_ivl =
''x'' ::= N 0; ''y'' ::= N 0;
WHILE Less (V ''x'') (N 1000)
DO (''y'' ::= V ''x''; ''x'' ::= Plus (V ''x'') (N 1))"
definition "test6_ivl =
''x'' ::= N 0;
WHILE Less (V ''x'') (N 1) DO ''x'' ::= Plus (V ''x'') (N -1)"
end