; RUN: opt < %s -instcombine -S | grep icmp | count 1 %struct.FooBar = type <{ i8, i8, [2 x i8], i8, i8, i8, i8, i16, i16, [4 x i8], [8 x %struct.Rock] }> %struct.Rock = type { i16, i16 } @some_idx = internal constant [4 x i8] c"\0A\0B\0E\0F" ; <[4 x i8]*> [#uses=1] define zeroext i8 @t(%struct.FooBar* %up, i8 zeroext %intra_flag, i32 %blk_i) nounwind { entry: %tmp2 = lshr i32 %blk_i, 1 ; [#uses=1] %tmp3 = and i32 %tmp2, 2 ; [#uses=1] %tmp5 = and i32 %blk_i, 1 ; [#uses=1] %tmp6 = or i32 %tmp3, %tmp5 ; [#uses=1] %tmp8 = getelementptr %struct.FooBar, %struct.FooBar* %up, i32 0, i32 7 ; [#uses=1] %tmp9 = load i16, i16* %tmp8, align 1 ; [#uses=1] %tmp910 = zext i16 %tmp9 to i32 ; [#uses=1] %tmp12 = getelementptr [4 x i8], [4 x i8]* @some_idx, i32 0, i32 %tmp6 ; [#uses=1] %tmp13 = load i8, i8* %tmp12, align 1 ; [#uses=1] %tmp1314 = zext i8 %tmp13 to i32 ; [#uses=1] %tmp151 = lshr i32 %tmp910, %tmp1314 ; [#uses=1] %tmp1516 = trunc i32 %tmp151 to i8 ; [#uses=1] %tmp18 = getelementptr %struct.FooBar, %struct.FooBar* %up, i32 0, i32 0 ; [#uses=1] %tmp19 = load i8, i8* %tmp18, align 1 ; [#uses=1] %tmp22 = and i8 %tmp1516, %tmp19 ; [#uses=1] %tmp24 = getelementptr %struct.FooBar, %struct.FooBar* %up, i32 0, i32 0 ; [#uses=1] %tmp25 = load i8, i8* %tmp24, align 1 ; [#uses=1] %tmp26.mask = and i8 %tmp25, 1 ; [#uses=1] %toBool = icmp eq i8 %tmp26.mask, 0 ; [#uses=1] %toBool.not = xor i1 %toBool, true ; [#uses=1] %toBool33 = icmp eq i8 %intra_flag, 0 ; [#uses=1] %bothcond = or i1 %toBool.not, %toBool33 ; [#uses=1] %iftmp.1.0 = select i1 %bothcond, i8 0, i8 1 ; [#uses=1] %tmp40 = or i8 %tmp22, %iftmp.1.0 ; [#uses=1] %tmp432 = and i8 %tmp40, 1 ; [#uses=1] ret i8 %tmp432 }