| ; RUN: opt -passes="verify<scalar-evolution>,lcssa,verify<scalar-evolution>" -verify-scev-strict -S %s |
| |
| ; The first SCEV verification is required because it queries SCEV and populates |
| ; SCEV caches. Second SCEV verification checks if the caches are in valid state. |
| |
| ; Check that the second SCEV verification doesn't fail. |
| define void @foo(i32* %arg, i32* %arg1, i1 %arg2) { |
| bb: |
| br label %bb3 |
| |
| bb3: ; preds = %bb13, %bb |
| %tmp = load i32, i32* %arg |
| %tmp4 = load i32, i32* %arg1 |
| %tmp5 = add i32 %tmp4, %tmp |
| %tmp6 = icmp sgt i32 %tmp5, %tmp |
| br i1 %tmp6, label %bb7, label %bb11 |
| |
| bb7: ; preds = %bb3 |
| br i1 %arg2, label %bb10, label %bb8 |
| |
| bb8: ; preds = %bb7 |
| %tmp9 = add nsw i32 %tmp, 1 |
| ret void |
| |
| bb10: ; preds = %bb7 |
| br label %bb11 |
| |
| bb11: ; preds = %bb10, %bb3 |
| %tmp12 = phi i32 [ 0, %bb3 ], [ %tmp4, %bb10 ] |
| br label %bb13 |
| |
| bb13: ; preds = %bb13, %bb11 |
| %tmp14 = phi i32 [ %tmp15, %bb13 ], [ 0, %bb11 ] |
| %tmp15 = add nuw nsw i32 %tmp14, 1 |
| %tmp16 = icmp slt i32 %tmp15, %tmp12 |
| br i1 %tmp16, label %bb13, label %bb3 |
| } |
