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; RUN: opt < %s -instcombine -S | grep shl
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; RUN: opt < %s -instcombine -S | notcast
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; This cannot be turned into a sign extending cast!
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define i64 @test(i64 %X) {
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%Y = shl i64 %X, 16 ; <i64> [#uses=1]
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%Z = ashr i64 %Y, 16 ; <i64> [#uses=1]
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ret i64 %Z
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}
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