2007-03-25-DoubleShift.ll 258 Bytes Raw Blame History Permalink 1 2 3 4 5 6 7 8 9 ; PR1271 ; RUN: opt < %s -instcombine -S | grep and define i1 @test(i32 %tmp13) { entry: %tmp14 = shl i32 %tmp13, 12 ; <i32> [#uses=1] %tmp15 = lshr i32 %tmp14, 12 ; <i32> [#uses=1] %res = icmp ne i32 %tmp15, 0 ; <i1>:3 [#uses=1] ret i1 %res }