1 ; RUN: llc < %s -mtriple=x86_64-apple-darwin11 -relocation-model=pic -disable-fp-elim -stats |& not grep ext-opt 2 3 define fastcc i8* @S_scan_str(i8* %start, i32 %keep_quoted, i32 %keep_delims) nounwind ssp { 4 entry: 5 switch i8 undef, label %bb6 [ 6 i8 9, label %bb5 7 i8 32, label %bb5 8 i8 10, label %bb5 9 i8 13, label %bb5 10 i8 12, label %bb5 11 ] 12 13 bb5: ; preds = %entry, %entry, %entry, %entry, %entry 14 br label %bb6 15 16 bb6: ; preds = %bb5, %entry 17 br i1 undef, label %bb7, label %bb9 18 19 bb7: ; preds = %bb6 20 unreachable 21 22 bb9: ; preds = %bb6 23 %0 = load i8* undef, align 1 ; <i8> [#uses=3] 24 br i1 undef, label %bb12, label %bb10 25 26 bb10: ; preds = %bb9 27 br i1 undef, label %bb12, label %bb11 28 29 bb11: ; preds = %bb10 30 unreachable 31 32 bb12: ; preds = %bb10, %bb9 33 br i1 undef, label %bb13, label %bb14 34 35 bb13: ; preds = %bb12 36 store i8 %0, i8* undef, align 1 37 %1 = zext i8 %0 to i32 ; <i32> [#uses=1] 38 br label %bb18 39 40 bb14: ; preds = %bb12 41 br label %bb18 42 43 bb18: ; preds = %bb14, %bb13 44 %termcode.0 = phi i32 [ %1, %bb13 ], [ undef, %bb14 ] ; <i32> [#uses=2] 45 %2 = icmp eq i8 %0, 0 ; <i1> [#uses=1] 46 br i1 %2, label %bb21, label %bb19 47 48 bb19: ; preds = %bb18 49 br i1 undef, label %bb21, label %bb20 50 51 bb20: ; preds = %bb19 52 br label %bb21 53 54 bb21: ; preds = %bb20, %bb19, %bb18 55 %termcode.1 = phi i32 [ %termcode.0, %bb18 ], [ %termcode.0, %bb19 ], [ undef, %bb20 ] ; <i32> [#uses=0] 56 unreachable 57 } 58