| ; Test that LICM works when there is not a loop-preheader |
| ; RUN: opt < %s -licm | llvm-dis |
| ; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,require<opt-remark-emit>,loop-mssa(licm)' < %s | llvm-dis |
| |
| define void @testfunc(i32 %i.s, i1 %ifcond) { |
| br i1 %ifcond, label %Then, label %Else |
| Then: ; preds = %0 |
| br label %Loop |
| Else: ; preds = %0 |
| br label %Loop |
| Loop: ; preds = %Loop, %Else, %Then |
| %j = phi i32 [ 0, %Then ], [ 12, %Else ], [ %Next, %Loop ] ; <i32> [#uses=1] |
| %i = bitcast i32 %i.s to i32 ; <i32> [#uses=1] |
| %i2 = mul i32 %i, 17 ; <i32> [#uses=1] |
| %Next = add i32 %j, %i2 ; <i32> [#uses=2] |
| %cond = icmp eq i32 %Next, 0 ; <i1> [#uses=1] |
| br i1 %cond, label %Out, label %Loop |
| Out: ; preds = %Loop |
| ret void |
| } |
| |