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Commit 4ca70100 authored by Hal Finkel's avatar Hal Finkel
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Fix a PPC rlwimi instruction-selection bug

Under certain (evidently rare) circumstances, this code used to convert OR(a,
AND(x, y)) into OR(a, x). This was incorrect.

While there, I've added a comment to the code immediately above.

llvm-svn: 185201
parent 95609be5
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