| ; Bugpoint-reduced example that demonstrated a bug (assertion failure) |
| ; in register allocation. See |
| ; https://code.google.com/p/nativeclient/issues/detail?id=3903 . |
| ; |
| ; TODO(kschimpf) Find out why lc2i is needed. |
| ; RUN: %lc2i -i %s --args -O2 --verbose regalloc |
| |
| define internal void @foo() { |
| bb: |
| br i1 undef, label %bb13, label %bb14 |
| |
| bb13: |
| unreachable |
| |
| bb14: |
| br i1 undef, label %bb50, label %bb16 |
| |
| bb15: ; preds = %bb42, %bb35 |
| br i1 undef, label %bb50, label %bb16 |
| |
| bb16: ; preds = %bb49, %bb15, %bb14 |
| %tmp = phi i32 [ undef, %bb14 ], [ %tmp18, %bb49 ], [ undef, %bb15 ] |
| br label %bb17 |
| |
| bb17: ; preds = %bb48, %bb16 |
| %tmp18 = phi i32 [ undef, %bb16 ], [ undef, %bb48 ] |
| %tmp19 = add i32 %tmp18, 4 |
| br i1 undef, label %bb21, label %bb46 |
| |
| bb21: ; preds = %bb27, %bb17 |
| %tmp22 = phi i32 [ undef, %bb17 ], [ %tmp30, %bb27 ] |
| %tmp23 = add i32 undef, -1 |
| %tmp24 = add i32 undef, undef |
| %undef.ptr = inttoptr i32 undef to i32* |
| %tmp25 = load i32, i32* %undef.ptr, align 1 |
| %tmp26 = icmp eq i32 undef, %tmp22 |
| br i1 %tmp26, label %bb34, label %bb32 |
| |
| bb27: ; preds = %bb42, %bb34 |
| %tmp28 = icmp sgt i32 %tmp23, 0 |
| %tmp29 = inttoptr i32 %tmp19 to i32* |
| %tmp30 = load i32, i32* %tmp29, align 1 |
| br i1 %tmp28, label %bb21, label %bb46 |
| |
| bb32: ; preds = %bb21 |
| %tmp33 = inttoptr i32 %tmp24 to i32* |
| store i32 0, i32* %tmp33, align 1 |
| br label %bb34 |
| |
| bb34: ; preds = %bb32, %bb31 |
| br i1 undef, label %bb27, label %bb35 |
| |
| bb35: ; preds = %bb34 |
| %tmp40 = inttoptr i32 %tmp25 to void (i32)* |
| call void %tmp40(i32 undef) |
| br i1 undef, label %bb42, label %bb15 |
| |
| bb42: ; preds = %bb35 |
| %tmp43 = inttoptr i32 %tmp to i32* |
| %tmp44 = load i32, i32* %tmp43, align 1 |
| %tmp45 = icmp eq i32 %tmp44, %tmp18 |
| br i1 %tmp45, label %bb27, label %bb15 |
| |
| bb46: ; preds = %bb27, %bb17 |
| br i1 undef, label %bb47, label %bb49 |
| |
| bb47: ; preds = %bb46 |
| br i1 undef, label %bb50, label %bb48 |
| |
| bb48: ; preds = %bb47 |
| br i1 undef, label %bb50, label %bb17 |
| |
| bb49: ; preds = %bb46 |
| br i1 undef, label %bb50, label %bb16 |
| |
| bb50: ; preds = %bb49, %bb48, %bb47, %bb15, %bb14 |
| unreachable |
| } |
