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1# RUN: llc -run-pass block-placement -mtriple=amdgcn -verify-machineinstrs -o - %s | FileCheck %s2--- |3 4 define amdgpu_kernel void @invert_br_undef_vcc(float %cond, ptr addrspace(1) %out) #0 {5 entry:6 br i1 poison, label %if, label %else, !structurizecfg.uniform !0, !amdgpu.uniform !07 8 else: ; preds = %entry9 store volatile i32 100, ptr addrspace(1) poison10 br label %done, !structurizecfg.uniform !011 12 if: ; preds = %entry13 store volatile i32 9, ptr addrspace(1) poison14 br label %done, !structurizecfg.uniform !015 16 done: ; preds = %if, %else17 %value = phi i32 [ 0, %if ], [ 1, %else ]18 store i32 %value, ptr addrspace(1) %out19 ret void20 }21 22 attributes #0 = { nounwind }23 24 !0 = !{}25 26...27---28# CHECK-LABEL: name: invert_br_undef_vcc29# CHECK: S_CBRANCH_VCCZ %bb.1, implicit undef $vcc30 31name: invert_br_undef_vcc32alignment: 133exposesReturnsTwice: false34legalized: false35regBankSelected: false36selected: false37tracksRegLiveness: true38liveins:39 - { reg: '$sgpr0_sgpr1' }40frameInfo:41 isFrameAddressTaken: false42 isReturnAddressTaken: false43 hasStackMap: false44 hasPatchPoint: false45 stackSize: 046 offsetAdjustment: 047 maxAlignment: 048 adjustsStack: false49 hasCalls: false50 maxCallFrameSize: 051 hasOpaqueSPAdjustment: false52 hasVAStart: false53 hasMustTailInVarArgFunc: false54body: |55 bb.0.entry:56 liveins: $sgpr0_sgpr157 58 $sgpr0_sgpr1 = S_LOAD_DWORDX2_IMM killed $sgpr0_sgpr1, 11, 0 :: (non-temporal dereferenceable invariant load (s64) from `ptr addrspace(4) poison`)59 $sgpr7 = S_MOV_B32 6144060 $sgpr6 = S_MOV_B32 -161 S_CBRANCH_VCCNZ %bb.2, implicit undef $vcc62 63 bb.1.else:64 liveins: $sgpr6, $sgpr7, $sgpr0_sgpr1_sgpr2_sgpr3:0x0000000365 66 $vgpr0 = V_MOV_B32_e32 100, implicit $exec67 BUFFER_STORE_DWORD_OFFSET killed $vgpr0, killed $sgpr4_sgpr5_sgpr6_sgpr7, 0, 0, 0, 0, implicit $exec :: (volatile store (s32) into `ptr addrspace(1) poison`)68 $vgpr0 = V_MOV_B32_e32 1, implicit $exec69 S_BRANCH %bb.370 71 bb.2.if:72 liveins: $sgpr6, $sgpr7, $sgpr0_sgpr1_sgpr2_sgpr3:0x0000000373 74 $vgpr0 = V_MOV_B32_e32 9, implicit $exec75 BUFFER_STORE_DWORD_OFFSET killed $vgpr0, killed $sgpr4_sgpr5_sgpr6_sgpr7, 0, 0, 0, 0, implicit $exec :: (volatile store (s32) into `ptr addrspace(1) poison`)76 $vgpr0 = V_MOV_B32_e32 0, implicit $exec77 78 bb.3.done:79 liveins: $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3:0x0000000380 81 $sgpr3 = S_MOV_B32 6144082 $sgpr2 = S_MOV_B32 -183 BUFFER_STORE_DWORD_OFFSET killed $vgpr0, killed $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec :: (store (s32) into %ir.out)84 S_ENDPGM 085 86...87