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Commit 53c5c3d6 authored by Sanjay Patel's avatar Sanjay Patel
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[InstCombine] add nsw/nuw X, signbit --> or X, signbit 

Changing to 'or' (rather than 'xor' when no wrapping flags are set)
allows icmp simplifies to happen as expected.

Differential Revision: https://reviews.llvm.org/D29729

llvm-svn: 295574
parent fe672559
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