| ; RUN: llc < %s -march=arm64 |
| |
| ; The target lowering for integer comparisons was replacing some DAG nodes |
| ; during operation legalization, which resulted in dangling pointers, |
| ; cycles in DAGs, and eventually crashes. This is the testcase for |
| ; one of those crashes. (rdar://10653656) |
| |
| define void @test(i1 zeroext %IsArrow) nounwind ssp align 2 { |
| entry: |
| br i1 undef, label %return, label %lor.lhs.false |
| |
| lor.lhs.false: |
| br i1 undef, label %return, label %if.end |
| |
| if.end: |
| %tmp.i = load i64, i64* undef, align 8 |
| %and.i.i.i = and i64 %tmp.i, -16 |
| br i1 %IsArrow, label %if.else_crit_edge, label %if.end32 |
| |
| if.else_crit_edge: |
| br i1 undef, label %if.end32, label %return |
| |
| if.end32: |
| %0 = icmp ult i32 undef, 3 |
| %1 = zext i64 %tmp.i to i320 |
| %.pn.v = select i1 %0, i320 128, i320 64 |
| %.pn = shl i320 %1, %.pn.v |
| %ins346392 = or i320 %.pn, 0 |
| store i320 %ins346392, i320* undef, align 8 |
| br i1 undef, label %sw.bb.i.i, label %exit |
| |
| sw.bb.i.i: |
| unreachable |
| |
| exit: |
| unreachable |
| |
| return: |
| ret void |
| } |
