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Commit d895bff5 authored by Amjad Aboud's avatar Amjad Aboud
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[AggressiveInstCombine] Make TruncCombine class ignore unreachable basic blocks. 

Because dead code may contain non-standard IR that causes infinite looping or crashes in underlying analysis.
See PR36134 for more details.

Differential Revision: https://reviews.llvm.org/D42683

llvm-svn: 323862
parent 98d5359e
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