Andrea Di Biagio c53401ee91 [InstCombine] Fix wrong folding of constant comparisons involving ashr and negative values.
This patch fixes a bug in method InstCombiner::FoldCmpCstShrCst where we
wrongly computed the distance between the highest bits set of two negative
values.

This fixes PR21222.

Differential Revision: http://reviews.llvm.org/D5700


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219406 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-09 12:41:49 +00:00
2014-09-02 22:28:02 +00:00
2014-06-25 13:13:36 +00:00
2014-04-26 19:05:45 +00:00

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