1; RUN: llc -mtriple=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s 2; RUN: llc -mtriple=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s 3 4; SILowerI1Copies was not handling IMPLICIT_DEF 5; SI-LABEL: {{^}}br_implicit_def: 6; SI: %bb.0: 7; SI-NEXT: s_cbranch_scc1 8define amdgpu_kernel void @br_implicit_def(ptr addrspace(1) %out, i32 %arg) #0 { 9bb: 10 br i1 undef, label %bb1, label %bb2 11 12bb1: 13 store volatile i32 123, ptr addrspace(1) %out 14 ret void 15 16bb2: 17 ret void 18} 19 20attributes #0 = { nounwind } 21