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; RUN: llc < %s -march=x86 | not grep '4{(%...)}
; This should not load or store the top part of *P.
define void @test(i64* %P) nounwind {
entry:
%tmp1 = load i64* %P, align 8 ; <i64> [#uses=1]
%tmp2 = xor i64 %tmp1, 1 ; <i64> [#uses=1]
store i64 %tmp2, i64* %P, align 8
ret void
}
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