| ; RUN: opt -S < %s -passes=jump-threading -jump-threading-across-loop-headers | FileCheck %s |
| |
| ; CHECK-LABEL: @foo |
| ; Just check that we don't hang on this test. |
| |
| define void @foo(i32 %a) { |
| bb_entry: |
| br label %bb_header |
| |
| bb_header: |
| %b = phi i32 [ %c, %bb_header ], [ 0, %bb_body1 ], [ 2, %bb_body2 ], [ 0, %bb_entry ] |
| %c = add nuw nsw i32 %b, 1 |
| %d = icmp ult i32 %c, 6 |
| br i1 %d, label %bb_header, label %bb_body1 |
| |
| bb_body1: |
| %e = icmp eq i32 %a, 0 |
| br i1 %e, label %bb_body2, label %bb_header |
| |
| bb_body2: |
| br label %bb_header |
| } |
