2006-02-13 Ed Schonberg <schonberg@adacore.com>
Javier Miranda <miranda@adacore.com>
Eric Botcazou <ebotcazou@adacore.com>
* exp_util.ads, exp_util.adb (Find_Prim_Op,
Is_Predefined_Primitive_Operation): When
searching for the predefined equality operator, verify that operands
have the same type.
(Is_Predefined_Dispatching_Operation): Remove the code that looks
for the last entity in the list of aliased subprograms. This code
was wrong in case of renamings.
(Set_Renamed_Subprogram): New procedure
(Remove_Side_Effects): Replace calls to Etype (Exp) with use of the
Exp_Type constant computed when entering this subprogram.
(Known_Null): New function
(OK_To_Do_Constant_Replacement): New function
(Known_Non_Null): Check scope before believing Is_Known_Non_Null flag
(Side_Effect_Free): An attribute reference 'Input is not free of
side effect, unlike other attributes that are functions. (from code
reading).
(Remove_Side_Effects): Expressions that involve packed arrays or records
are copied at the point of reference, and therefore must be marked as
renamings of objects.
(Is_Predefined_Dispatching_Operation): Return false if the operation is
not a dispatching operation.
PR ada/18819
(Remove_Side_Effects): Lift enclosing type conversion nodes for
elementary types in all cases.
From-SVN: r111069
