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