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Commit 981fdeb4 authored by Richard Sandiford's avatar Richard Sandiford
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[DAGCombiner] Respect volatility when checking for aliases

Making useAA() default to true for SystemZ showed that the combiner alias
analysis wasn't handling volatile accesses.  This hit many of the SystemZ
tests, but I arbitrarily picked one for the purpose of this patch.

llvm-svn: 193518
parent 39c1ce4d
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