| ; RUN: llvm-as < %s | opt -licm -disable-output -stats |& \ |
| ; RUN: grep {memory locations promoted to register} |
| @X = global i32 7 ; <i32*> [#uses=4] |
| |
| define void @testfunc(i32 %i) { |
| ; <label>:0 |
| br label %Loop |
| |
| Loop: ; preds = %Loop, %0 |
| %j = phi i32 [ 0, %0 ], [ %Next, %Loop ] ; <i32> [#uses=1] |
| %x = load i32* @X ; <i32> [#uses=1] |
| %x2 = add i32 %x, 1 ; <i32> [#uses=1] |
| store i32 %x2, i32* @X |
| %Next = add i32 %j, 1 ; <i32> [#uses=2] |
| %cond = icmp eq i32 %Next, 0 ; <i1> [#uses=1] |
| br i1 %cond, label %Out, label %Loop |
| |
| Out: ; preds = %Loop |
| ret void |
| } |
| |
| define void @testhard(i32 %i) { |
| br label %Loop |
| |
| Loop: ; preds = %Loop, %0 |
| %X1 = getelementptr i32* @X, i64 0 ; <i32*> [#uses=1] |
| %A = load i32* %X1 ; <i32> [#uses=1] |
| %V = add i32 %A, 1 ; <i32> [#uses=1] |
| %X2 = getelementptr i32* @X, i64 0 ; <i32*> [#uses=1] |
| store i32 %V, i32* %X2 |
| br i1 false, label %Loop, label %Exit |
| |
| Exit: ; preds = %Loop |
| ret void |
| } |