11.2.4 INIT_DEP_FWD Directive (VAX only)

The INIT_DEP_FWD (INITialize DEPendences ForWarD) directive specifies that the compiler is to begin its dependence analysis by assuming that all dependences occur in the same forward direction as their appearance in the normal scalar execution order. This contrasts with the normal compiler behavior, which is for the dependence analysis to make no initial assumptions about the direction of a dependence. The INIT_DEP_FWD directive takes the following form:

cDEC$ INIT_DEP_FWD
c
Is the letter or character that introduces the directive tag (see Section 11.1).

The INIT_DEP_FWD directive must precede the DO statement for each DO loop that the directive applies to. No source code lines, other than the following, can be placed between the INIT_DEP_FWD directive statement and the DO statement:

For More Information:

For more details on the INIT_DEP_FWD directive, see your performance guide.


Previous Page Next Page Table of Contents