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top - metrics - downloadIndex: B T
Length: 3448 (0xd78)
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;
------------------------
-- Parameter Association 05
------------------------
-- This test evaluates the code efficiency of a call to a procedure that
-- has five formal in out parameters of the same generic formal type.
-- The objective is to determine whether or not a different parameter
-- passing mechanism is used when more than two parameters are provided.
-- The procedure Param_Assoc is called in the test version using local
-- variables, Outer_1 .. Outer_5 as the actual parameters. These
-- variables are referenced inside the procedure through the formal
-- parameters to ensure that the required parameter passing is
-- performed.
-- In the noise version, the procedure Param_Assoc is parameterless
-- and references only the local variables, Local_1 .. Local_5, so that
-- there is no parameter passing overhead incurred. Both the test and
-- noise versions perform the same camouflaged assignments to outer and
-- local variables, respectively.
-- The purpose of using local variables in the noise version is to
-- avoid uplevel referencing of the outer variables. To prevent the
-- elimination of the local variables in the test version, the values
-- of the locals are used in the assignments just as they are in the
-- noise version. The same number of assignments are performed in both
-- versions.
procedure Fpanc1 is
package Pc_Cs is new Procs (Integer);
use Pc_Cs;
Outer_1, Outer_2, Outer_3, Outer_4, Outer_5 : T := Ident (Init);
procedure Param_Assoc
-- (Formal_1 : in out T; -- included in test version
-- Formal_2 : in out T; -- included in test version
-- Formal_3 : in out T; -- included in test version
-- Formal_4 : in out T; -- included in test version
-- Formal_5 : in out T) -- included in test version
is
Local_1, Local_2, Local_3, Local_4, Local_5 : T := Ident (Init);
begin
-- Let(Formal_1, Ident(Local_1)); -- included in test version
-- Let(Formal_2, Ident(Local_2)); -- included in test version
-- Let(Formal_3, Ident(Local_3)); -- included in test version
-- Let(Formal_4, Ident(Local_4)); -- included in test version
-- Let(Formal_5, Ident(Local_5)); -- included in test version
Let (Local_1, Ident (Local_1)); -- included in noise version
Let (Local_2, Ident (Local_2)); -- included in noise version
Let (Local_3, Ident (Local_3)); -- included in noise version
Let (Local_4, Ident (Local_4)); -- included in noise version
Let (Local_5, Ident (Local_5)); -- included in noise version
end Param_Assoc;
begin
Start ("FPANC1",
"Formal in/out Param. Assoc. w/5 param., Non-access type (Control)");
for I in 1 .. 10000 loop
Let (Global, Ident (Init));
-- Param_Assoc( Formal_1 => Outer_1, -- included in test version
-- Formal_2 => Outer_2, -- included in test version
-- Formal_3 => Outer_3, -- included in test version
-- Formal_4 => Outer_4, -- included in test version
-- Formal_5 => Outer_5 ); -- included in test version
Param_Assoc; -- included in noise version
end loop;
Stop;
end Fpanc1;