1*9880d681SAndroid Build Coastguard Worker; RUN: llc -mtriple=thumbv7-apple-ios -mcpu=cortex-a8 < %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Worker; rdar://10196296 4*9880d681SAndroid Build Coastguard Worker; ARM target specific dag combine created a cycle in DAG. 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Workerdefine void @t() nounwind ssp { 7*9880d681SAndroid Build Coastguard Worker %1 = load i64, i64* undef, align 4 8*9880d681SAndroid Build Coastguard Worker %2 = shl i32 5, 0 9*9880d681SAndroid Build Coastguard Worker %3 = zext i32 %2 to i64 10*9880d681SAndroid Build Coastguard Worker %4 = and i64 %1, %3 11*9880d681SAndroid Build Coastguard Worker %5 = lshr i64 %4, undef 12*9880d681SAndroid Build Coastguard Worker switch i64 %5, label %8 [ 13*9880d681SAndroid Build Coastguard Worker i64 0, label %9 14*9880d681SAndroid Build Coastguard Worker i64 1, label %6 15*9880d681SAndroid Build Coastguard Worker i64 4, label %9 16*9880d681SAndroid Build Coastguard Worker i64 5, label %7 17*9880d681SAndroid Build Coastguard Worker ] 18*9880d681SAndroid Build Coastguard Worker 19*9880d681SAndroid Build Coastguard Worker; <label>:6 ; preds = %0 20*9880d681SAndroid Build Coastguard Worker unreachable 21*9880d681SAndroid Build Coastguard Worker 22*9880d681SAndroid Build Coastguard Worker; <label>:7 ; preds = %0 23*9880d681SAndroid Build Coastguard Worker unreachable 24*9880d681SAndroid Build Coastguard Worker 25*9880d681SAndroid Build Coastguard Worker; <label>:8 ; preds = %0 26*9880d681SAndroid Build Coastguard Worker unreachable 27*9880d681SAndroid Build Coastguard Worker 28*9880d681SAndroid Build Coastguard Worker; <label>:9 ; preds = %0, %0 29*9880d681SAndroid Build Coastguard Worker ret void 30*9880d681SAndroid Build Coastguard Worker} 31