[all-commits] [llvm/llvm-project] 3483c2: [SCEV] ] If RHS >= Start, simplify (Start smax RHS...

[Florian Hahn via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 3483c28c5bc16d37d6c0f4e760357e4934f83b97
      https://github.com/llvm/llvm-project/commit/3483c28c5bc16d37d6c0f4e760357e4934f83b97
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2020-08-11 (Tue, 11 Aug 2020)

  Changed paths:
    M llvm/lib/Analysis/ScalarEvolution.cpp
    M llvm/test/Analysis/ScalarEvolution/smin-smax-folds.ll

  Log Message:
  -----------
  [SCEV] ] If RHS >= Start, simplify (Start smax RHS) to RHS for trip counts.

This is the max version of D85046.

This change causes binary changes in 44 out of 237 benchmarks (out of
MultiSource/SPEC2000/SPEC2006)

Reviewed By: lebedev.ri

Differential Revision: https://reviews.llvm.org/D85189