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GCC Middle and Back End API Reference
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#include <tree-data-ref.h>

Data Fields | |
| conflict_function * | conflicting_iterations_in_a |
| conflict_function * | conflicting_iterations_in_b |
| tree | last_conflict |
| tree | distance |
What is a subscript? Given two array accesses a subscript is the tuple composed of the access functions for a given dimension. Example: Given A[f1][f2][f3] and B[g1][g2][g3], there are three subscripts: (f1, g1), (f2, g2), (f3, g3). These three subscripts are stored in the data_dependence_relation structure under the form of an array of subscripts.
| conflict_function* subscript::conflicting_iterations_in_a |
A description of the iterations for which the elements are
accessed twice.
| conflict_function* subscript::conflicting_iterations_in_b |
| tree subscript::distance |
Distance from the iteration that access a conflicting element in
A to the iteration that access this same conflicting element in
B. The distance is a tree scalar expression, i.e. a constant or a
symbolic expression, but certainly not a chrec function.
| tree subscript::last_conflict |
This field stores the information about the iteration domain
validity of the dependence relation.