https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82446
Bug ID: 82446
Summary: [8 Regression] Missed equalities in dr_group_sort_cmp
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: rguenth at gcc dot gnu.org
Blocks: 82397
Target Milestone: ---
The fix for PR82397 causes a few missed equalities and thus different
vectorizer group access detections because operand_equal_p was handling
commutated operands
and data_ref_compare_tree does not.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82397
[Bug 82397] [8 Regression] qsort comparator non-negative on sorted output: 1 in
vect_analyze_data_ref_accesses
