================ @@ -7866,6 +7866,17 @@ The attributes in this metadata is added to all followup loops of the loop distribution pass. See :ref:`Transformation Metadata <transformation-metadata>` for details. +'``llvm.loop.estimated_trip_count``' Metadata +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +This metadata records the loop's estimated trip count. If it is not present, a +loop's estimated trip count should be computed from any ``branch_weights`` +metadata attached to the latch block's branch instruction. + +Thus, this metadata frees loop transformations to compute latch branch weights +solely for the purpose of maintaining accurate block frequencies instead of +requiring the branch weights to always serve both roles. ---------------- jdenny-ornl wrote:
This is now part of PR #148758. https://github.com/llvm/llvm-project/pull/128785 _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
