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1; RUN: llc -mtriple=amdgcn < %s | FileCheck -check-prefix=SI %s2; RUN: llc -mtriple=amdgcn -mcpu=tonga < %s | FileCheck -check-prefix=SI %s3 4; SILowerI1Copies was not handling IMPLICIT_DEF5; SI-LABEL: {{^}}br_poison:6; SI: %bb.0:7; SI-NEXT: s_cbranch_scc18define amdgpu_kernel void @br_poison(ptr addrspace(1) %out, i32 %arg) #0 {9bb:10 br i1 poison, label %bb1, label %bb211 12bb1:13 store volatile i32 123, ptr addrspace(1) %out14 ret void15 16bb2:17 ret void18}19 20; SI-LABEL: {{^}}br_freeze_poison:21; SI: %bb.0:22; SI-NEXT: s_cbranch_scc123define amdgpu_kernel void @br_freeze_poison(ptr addrspace(1) %out, i32 %arg) #0 {24bb:25 %undef = freeze i1 poison26 br i1 %undef, label %bb1, label %bb227 28bb1:29 store volatile i32 123, ptr addrspace(1) %out30 ret void31 32bb2:33 ret void34}35 36attributes #0 = { nounwind }37