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1; RUN: llc < %s -verify-machineinstrs2 3; Make sure we don't end up with a CBNZ of an undef v-/phys-reg.4 5target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"6target triple = "arm64-apple-ios"7 8declare void @bar(ptr)9 10define void @foo(ptr %m, i32 %off0) {11.thread1653:12 br i1 poison, label %0, label %.thread188013 14 %1 = icmp eq i32 undef, 015 %.not = xor i1 %1, true16 %brmerge = or i1 %.not, undef17 br i1 %brmerge, label %.thread1880, label %.thread170518 19.thread1705:20 ret void21 22.thread1880:23 %m1652.ph = phi ptr [ %m, %0 ], [ null, %.thread1653 ]24 call void @bar(ptr %m1652.ph)25 ret void26}27