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top - metrics - downloadIndex: B T
Length: 1834 (0x72a)
Types: TextFile
Names: »B«
└─⟦180fe333a⟧ Bits:30000405 8mm tape, Rational 1000, SW CATALOG, 10_20_0
└─⟦180fe333a⟧ Bits:30000537 8mm tape, Rational 1000, SW Catalog 10_20_0
└─⟦5cb1d1d7f⟧ »DATA«
└─⟦3b1ee7bd8⟧
└─⟦this⟧
with Instrument;
use Instrument;
---------------------
-- UPLEVEL REFERENCE P01
---------------------
-- THIS TEST EVALUATES THE CODE EFFICIENCY OF A REFERENCE FROM WITHIN A
-- PROCEDURE TO AN UPLEVEL VARIABLE, I.E., A VARIABLE DECLARED IN A
-- DECLARATIVE REGION THAT STATICALLY ENCLOSES THE PROCEDURE. THE REFER
-- IS TO A VARIABLE DECLARED IN THE IMMEDIATELY ENCLOSING REGION (ONE
-- LEVEL UP).
-- THE TEST INCLUDES AN UPLEVEL REFERENCE FOR EVALUATION BY ASSIGNING
-- THE VARIABLE UPLEVEL.ALL TO THE GLOBAL VARIABLE. THE ASSIGNMENT IS L
-- IN THE PROCEDURE INNER THAT IS ENCLOSED BY THE DECLARATIVE REGION IN
-- UPLEVEL IS DECLARED. THE TEST ASSIGNMENT IS GUARDED FROM OPTIMIZATIO
-- BY A CONDITIONAL STATEMENT. ADDITIONAL CAMOUFLAGED ASSIGNMENTS ARE
-- INCLUDED IN THE PROCEDURE TO MAINTAIN THE VALIDITY OF THE CONDITIONAL
-- STATEMENT WHEN THE TEST ASSIGNMENT IS REMOVED IN THE NOISE VERSION AN
-- TO REFERENCE A LOCAL ARRAY. THIS ARRAY ENSURES THAT THE TREATMENT
-- OF THE PROCEDURE BY THE COMPILER RESULTS IN CODE GENERATION TYPICAL O
-- UPLEVEL REFERENCE FOR THE TEST VERSION.
procedure Pruaa2 is
package Dr_Cs is new Procs (Integer);
use Dr_Cs;
Uplevel : Ref_T := new T;
procedure Inner is
Proc_Local : array (1 .. 100) of T;
begin
Let (Proc_Local (1), Ident (Init));
if Global = Init then
Global := Uplevel.all; -- COMMENTED OUT IN NOISE VERSION
Let (Uplevel.all, Ident (Init));
end if;
Let (Global, Ident (Uplevel.all));
Let (Global, Ident (Proc_Local (1)));
end Inner;
begin
Start ("PRUAA2", "Proc. Ref. to an Uplevel var., Access type (test)");
for I in 1 .. 10000 loop
Let (Global, Ident (Init));
Let (Uplevel.all, Ident (Init));
Inner;
end loop;
Stop;
end Pruaa2;