[PATCH] D16550: Reroll loops with multiple IV and negative step part 3/3 -- support multiple induction variables

[Lawrence Hu via llvm-commits]

hulx2000 created this revision.
hulx2000 added reviewers: jmolloy, hfinkel.
hulx2000 added a subscriber: llvm-commits.
hulx2000 set the repository for this revision to rL LLVM.

    This patch enable loop reroll for the following case:
        for(int i=0;  i<N; i += 2) {
           S += *a++;
           S += *a++;
        };


Repository:
  rL LLVM

http://reviews.llvm.org/D16550

Files:
  lib/Transforms/Scalar/LoopRerollPass.cpp
  test/Transforms/LoopReroll/complex_reroll.ll

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