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Commit 57485472 authored by Richard Sandiford's avatar Richard Sandiford
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[SystemZ] Extend integer absolute selection

This patch makes more use of LPGFR and LNGFR.  It builds on top of
the LTGFR selection from r197234.  Most of the tests are motivated
by what InstCombine would produce.

llvm-svn: 197236
parent d420f734
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