f6e1a4cd83
Current data dependence analysis misses unit distant vector if DRs in
DDR have the same invariant access functions. This adds the vector as
the constant access function case.
2020-05-13 Bin Cheng <bin.cheng@linux.alibaba.com>
PR tree-optimization/94969
gcc/
* tree-data-dependence.c (constant_access_functions): Rename to...
(invariant_access_functions): ...this. Add parameter. Check for
invariant access function, rather than constant.
(build_classic_dist_vector): Call above function.
* tree-loop-distribution.c (pg_add_dependence_edges): Add comment.
gcc/testsuite/
* gcc.dg/tree-ssa/pr94969.c: New test.
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