1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=thumbv7-apple-ios 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Worker; If converter was being too cute. It look for root BBs (which don't have 4*9880d681SAndroid Build Coastguard Worker; successors) and use inverse depth first search to traverse the BBs. However 5*9880d681SAndroid Build Coastguard Worker; that doesn't work when the CFG has infinite loops. Simply do a linear 6*9880d681SAndroid Build Coastguard Worker; traversal of all BBs work just fine. 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Worker; rdar://9344645 9*9880d681SAndroid Build Coastguard Worker 10*9880d681SAndroid Build Coastguard Worker%struct.hc = type { i32, i32, i32, i32 } 11*9880d681SAndroid Build Coastguard Worker 12*9880d681SAndroid Build Coastguard Workerdefine i32 @t(i32 %type) optsize { 13*9880d681SAndroid Build Coastguard Workerentry: 14*9880d681SAndroid Build Coastguard Worker br i1 undef, label %if.then, label %if.else 15*9880d681SAndroid Build Coastguard Worker 16*9880d681SAndroid Build Coastguard Workerif.then: 17*9880d681SAndroid Build Coastguard Worker unreachable 18*9880d681SAndroid Build Coastguard Worker 19*9880d681SAndroid Build Coastguard Workerif.else: 20*9880d681SAndroid Build Coastguard Worker br i1 undef, label %if.then15, label %if.else18 21*9880d681SAndroid Build Coastguard Worker 22*9880d681SAndroid Build Coastguard Workerif.then15: 23*9880d681SAndroid Build Coastguard Worker unreachable 24*9880d681SAndroid Build Coastguard Worker 25*9880d681SAndroid Build Coastguard Workerif.else18: 26*9880d681SAndroid Build Coastguard Worker switch i32 %type, label %if.else173 [ 27*9880d681SAndroid Build Coastguard Worker i32 3, label %if.then115 28*9880d681SAndroid Build Coastguard Worker i32 1, label %if.then102 29*9880d681SAndroid Build Coastguard Worker ] 30*9880d681SAndroid Build Coastguard Worker 31*9880d681SAndroid Build Coastguard Workerif.then102: 32*9880d681SAndroid Build Coastguard Worker br i1 undef, label %cond.true10.i, label %t.exit 33*9880d681SAndroid Build Coastguard Worker 34*9880d681SAndroid Build Coastguard Workercond.true10.i: 35*9880d681SAndroid Build Coastguard Worker br label %t.exit 36*9880d681SAndroid Build Coastguard Worker 37*9880d681SAndroid Build Coastguard Workert.exit: 38*9880d681SAndroid Build Coastguard Worker unreachable 39*9880d681SAndroid Build Coastguard Worker 40*9880d681SAndroid Build Coastguard Workerif.then115: 41*9880d681SAndroid Build Coastguard Worker br i1 undef, label %if.else163, label %if.else145 42*9880d681SAndroid Build Coastguard Worker 43*9880d681SAndroid Build Coastguard Workerif.else145: 44*9880d681SAndroid Build Coastguard Worker %call150 = call fastcc %struct.hc* @foo(%struct.hc* undef, i32 34865152) optsize 45*9880d681SAndroid Build Coastguard Worker br label %while.body172 46*9880d681SAndroid Build Coastguard Worker 47*9880d681SAndroid Build Coastguard Workerif.else163: 48*9880d681SAndroid Build Coastguard Worker %call168 = call fastcc %struct.hc* @foo(%struct.hc* undef, i32 34078720) optsize 49*9880d681SAndroid Build Coastguard Worker br label %while.body172 50*9880d681SAndroid Build Coastguard Worker 51*9880d681SAndroid Build Coastguard Workerwhile.body172: 52*9880d681SAndroid Build Coastguard Worker br label %while.body172 53*9880d681SAndroid Build Coastguard Worker 54*9880d681SAndroid Build Coastguard Workerif.else173: 55*9880d681SAndroid Build Coastguard Worker ret i32 -1 56*9880d681SAndroid Build Coastguard Worker} 57*9880d681SAndroid Build Coastguard Worker 58*9880d681SAndroid Build Coastguard Workerdeclare hidden fastcc %struct.hc* @foo(%struct.hc* nocapture, i32) nounwind optsize 59*9880d681SAndroid Build Coastguard Worker 60