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Commit 59a12198 authored by Erik Verbruggen's avatar Erik Verbruggen
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InstCombine: merge constants in both operands of icmp. 

Transform:
    icmp X+Cst2, Cst
into:
    icmp X, Cst-Cst2
when Cst-Cst2 does not overflow, and the add has nsw.

llvm-svn: 204912
parent d897b564
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