Lawrence Hu 5136ca2c6d Handle loop with negtive induction variable increment ...

This patch extend LoopReroll pass to hand the loops which
is similar to the following:

      while (len > 1) {
            sum4 += buf[len];
            sum4 += buf[len-1];
            len -= 2;
        }

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243171 91177308-0d34-0410-b5e6-96231b3b80d8

2015-07-24 22:01:49 +00:00

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basic.ll

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negative.ll

Handle loop with negtive induction variable increment

2015-07-24 22:01:49 +00:00

nonconst_lb.ll

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reduction.ll

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