1*9880d681SAndroid Build Coastguard Worker; Test that LICM works when there is not a loop-preheader 2*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -licm | llvm-dis 3*9880d681SAndroid Build Coastguard Worker; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' < %s | llvm-dis 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Workerdefine void @testfunc(i32 %i.s, i1 %ifcond) { 6*9880d681SAndroid Build Coastguard Worker br i1 %ifcond, label %Then, label %Else 7*9880d681SAndroid Build Coastguard WorkerThen: ; preds = %0 8*9880d681SAndroid Build Coastguard Worker br label %Loop 9*9880d681SAndroid Build Coastguard WorkerElse: ; preds = %0 10*9880d681SAndroid Build Coastguard Worker br label %Loop 11*9880d681SAndroid Build Coastguard WorkerLoop: ; preds = %Loop, %Else, %Then 12*9880d681SAndroid Build Coastguard Worker %j = phi i32 [ 0, %Then ], [ 12, %Else ], [ %Next, %Loop ] ; <i32> [#uses=1] 13*9880d681SAndroid Build Coastguard Worker %i = bitcast i32 %i.s to i32 ; <i32> [#uses=1] 14*9880d681SAndroid Build Coastguard Worker %i2 = mul i32 %i, 17 ; <i32> [#uses=1] 15*9880d681SAndroid Build Coastguard Worker %Next = add i32 %j, %i2 ; <i32> [#uses=2] 16*9880d681SAndroid Build Coastguard Worker %cond = icmp eq i32 %Next, 0 ; <i1> [#uses=1] 17*9880d681SAndroid Build Coastguard Worker br i1 %cond, label %Out, label %Loop 18*9880d681SAndroid Build Coastguard WorkerOut: ; preds = %Loop 19*9880d681SAndroid Build Coastguard Worker ret void 20*9880d681SAndroid Build Coastguard Worker} 21*9880d681SAndroid Build Coastguard Worker 22