IDA

Input Language Supported

IDA version 1.9 (released 2 October 1997) accepts High Performance Fortran 2.0 (which includes Fortran 77, Fortran 90 and Fortran 95), in both fixed and free source form, with the following restrictions and extensions:

Fortran 77 features not supported:

• ENTRY statements;

• statement functions (i.e. `in-line' definitions of functions which appear among the declarations of a program unit or procedure).

• modules (which includes the MODULE, MODULE PROCEDURE, PRIVATE, PUBLIC and USE statements);

• internal procedures;

• INTERFACE blocks with a generic specification;

• pointers (which includes the POINTER and TARGET attributes and statements, the NULLIFY statement, and pointer assignment);

• derived types (which includes TYPE definitions and declarations, defined operations, and structure constructors) [These will be supported in the next release.];

• NAMELIST statements and the `NML =' specifier;

• FORALL contructs (though FORALL statements are supported). [These will be supported in the next release.];

• DEC Fortran tab-formatted input;

• `debug comments' (comments initiated by the character 'D', which are treated either as comments or statements depending on a compilation setting);

• BYTE datatype;

• `* len' type length specification applied to non-CHARACTER datatypes (e.g. REAL*8).

Note that IDA recognises all of HPF 2.0, including the above unsupported features, and reports the presence of any unsupported features. IDA can still analyse programs containing unsupported features, at least to the extent allowed by the `non-comprehension' of the features in question. For example, if a program uses derived datatypes, the only affect on the interprocedural analysis is that the derived datatypes are not reported correctly; if it uses modules, no analysis is done within module procedures and declarations in the module are ignored.