1 ; RUN: llc < %s -verify-machineinstrs
3 ; Make sure we don't end up with a CBNZ of an undef v-/phys-reg.
5 target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
6 target triple = "arm64-apple-ios"
10 define void @foo(ptr %m, i32 %off0) {
12 br i1 undef, label %0, label %.thread1880
14 %1 = icmp eq i32 undef, 0
15 %.not = xor i1 %1, true
16 %brmerge = or i1 %.not, undef
17 br i1 %brmerge, label %.thread1880, label %.thread1705
23 %m1652.ph = phi ptr [ %m, %0 ], [ null, %.thread1653 ]
24 call void @bar(ptr %m1652.ph)