| ; RUN: llvm-upgrade < %s | llvm-as -o /dev/null -f | |
| ; Dominance relationships is not calculated correctly for unreachable blocks, | |
| ; which causes the verifier to barf on this input. | |
| int %test(bool %b) { | |
| BB0: ret int 7 ; Loop is unreachable | |
| Loop: | |
| %B = phi int [%B, %L2], [%B, %Loop] ; PHI has same value always. | |
| br bool %b, label %L2, label %Loop | |
| L2: | |
| br label %Loop | |
| } | |