1 ; RUN: opt -loop-unswitch -disable-output 2 ; PR10031 3 4 define i32 @test(i32 %command) { 5 entry: 6 br label %tailrecurse 7 8 tailrecurse: ; preds = %if.then14, %tailrecurse, %entry 9 br i1 undef, label %if.then, label %tailrecurse 10 11 if.then: ; preds = %tailrecurse 12 switch i32 %command, label %sw.bb [ 13 i32 2, label %land.lhs.true 14 i32 0, label %land.lhs.true 15 ] 16 17 land.lhs.true: ; preds = %if.then, %if.then 18 br i1 undef, label %sw.bb, label %if.then14 19 20 if.then14: ; preds = %land.lhs.true 21 switch i32 %command, label %tailrecurse [ 22 i32 0, label %sw.bb 23 i32 1, label %sw.bb 24 ] 25 26 sw.bb: ; preds = %if.then14 27 unreachable 28 } 29
