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; RUN: llvm-as < %s | opt -instcombine -disable-output ; PR577 define i1 @test() { %tmp.3 = shl i32 0, 41 ; <i32> [#uses=1] %tmp.4 = icmp ne i32 %tmp.3, 0 ; <i1> [#uses=1] ret i1 %tmp.4 }