[PATCH] D28308: [SCEV] Model ashr(shl(x, n), m), where n > m, as mul(x, 2^(n-m))

[Z. Zheng via Phabricator via llvm-commits]

zzheng created this revision.
zzheng added reviewers: zinob, sanjoy.
zzheng added a subscriber: llvm-commits.
zzheng set the repository for this revision to rL LLVM.
Herald added a subscriber: mzolotukhin.

Repository:
  rL LLVM

https://reviews.llvm.org/D28308

Files:
  lib/Analysis/ScalarEvolution.cpp
  test/Analysis/ScalarEvolution/sext-mul.ll

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