1 ; RUN: opt < %s -S -loop-rotate -disable-output -verify-loop-info -verify-dom-info 2 ; PR5502 3 4 define void @z80_do_opcodes() nounwind { 5 entry: 6 br label %while.cond 7 8 while.cond: ; preds = %end_opcode, %entry 9 br label %while.body 10 11 while.body: ; preds = %while.cond 12 br label %indirectgoto 13 14 run_opcode: ; preds = %indirectgoto 15 %tmp276 = load i8* undef ; <i8> [#uses=1] 16 br label %indirectgoto 17 18 if.else295: ; preds = %divide_late 19 br label %end_opcode 20 21 end_opcode: ; preds = %indirectgoto, %sw.default42406, %sw.default, %if.else295 22 %opcode.2 = phi i8 [ %opcode.0, %indirectgoto ], [ 0, %sw.default42406 ], [ undef, %sw.default ], [ %opcode.0, %if.else295 ] ; <i8> [#uses=0] 23 switch i32 undef, label %while.cond [ 24 i32 221, label %sw.bb11691 25 i32 253, label %sw.bb30351 26 ] 27 28 sw.bb11691: ; preds = %end_opcode 29 br label %sw.default 30 31 sw.default: ; preds = %sw.bb11691 32 br label %end_opcode 33 34 sw.bb30351: ; preds = %end_opcode 35 br label %sw.default42406 36 37 sw.default42406: ; preds = %sw.bb30351 38 br label %end_opcode 39 40 indirectgoto: ; preds = %run_opcode, %while.body 41 %opcode.0 = phi i8 [ undef, %while.body ], [ %tmp276, %run_opcode ] ; <i8> [#uses=2] 42 indirectbr i8* undef, [label %run_opcode, label %if.else295, label %end_opcode] 43 } 44
