| ; RUN: opt < %s -loop-deletion -S | FileCheck %s |
| |
| ; Checking that possible users of instruction from the loop in |
| ; unreachable blocks are handled. |
| |
| define i64 @foo() { |
| entry: |
| br label %invloop |
| ; CHECK-LABEL-NOT: invloop |
| invloop: |
| %indvar1 = phi i64 [ 3, %entry ], [ %indvar2, %invloop_iter ] |
| %check = icmp ult i64 %indvar1, 400 |
| br i1 %check, label %invloop_iter, label %loopexit |
| invloop_iter: |
| %indvar2 = add i64 %indvar1, 1 |
| %baddef = add i64 0, 0 |
| br label %invloop |
| loopexit: |
| ret i64 0 |
| deadcode: |
| ; CHECK-LABEL: deadcode |
| ; CHECK: ret i64 undef |
| ret i64 %baddef |
| } |
