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