1# RUN: llc -march=amdgcn -run-pass si-fix-sgpr-copies %s -o - | FileCheck %s -check-prefixes=GCN 2 3--- 4 5name: phi_visit_order 6tracksRegLiveness: true 7registers: 8 - { id: 0, class: sreg_32_xm0 } 9 - { id: 1, class: sreg_64 } 10 - { id: 2, class: sreg_32_xm0 } 11 - { id: 7, class: vgpr_32 } 12 - { id: 8, class: sreg_32_xm0 } 13 - { id: 9, class: vgpr_32 } 14 - { id: 10, class: sreg_64 } 15 - { id: 11, class: sreg_32_xm0 } 16 17body: | 18 ; GCN-LABEL: name: phi_visit_order 19 ; GCN: V_ADD_I32 20 bb.0: 21 liveins: $vgpr0 22 %7 = COPY $vgpr0 23 %8 = S_MOV_B32 0 24 25 bb.1: 26 %0 = PHI %8, %bb.0, %0, %bb.1, %2, %bb.2 27 %9 = V_MOV_B32_e32 9, implicit $exec 28 %10 = V_CMP_EQ_U32_e64 %7, %9, implicit $exec 29 %1 = SI_IF %10, %bb.2, implicit-def $exec, implicit-def $scc, implicit $exec 30 S_BRANCH %bb.1 31 32 bb.2: 33 SI_END_CF %1, implicit-def $exec, implicit-def $scc, implicit $exec 34 %11 = S_MOV_B32 1 35 %2 = S_ADD_I32 %0, %11, implicit-def $scc 36 S_BRANCH %bb.1 37 38... 39 40--- 41 42# GCN-LABEL: name: dead_illegal_virtreg_copy 43# GCN: %0:vgpr_32 = COPY $vgpr0 44# GCN: %1:sreg_32_xm0 = IMPLICIT_DEF 45# GCN: S_ENDPGM implicit %0 46 47name: dead_illegal_virtreg_copy 48tracksRegLiveness: true 49 50body: | 51 bb.0: 52 liveins: $vgpr0 53 %0:vgpr_32 = COPY $vgpr0 54 %1:sreg_32_xm0 = COPY %0 55 S_ENDPGM implicit %1 56... 57 58--- 59 60# GCN-LABEL: name: dead_illegal_physreg_copy 61# GCN %2:vgpr_32 = COPY $vgpr0 62# GCN: %1:sreg_32_xm0 = IMPLICIT_DEF 63# GCN: S_ENDPGM implicit %2 64 65name: dead_illegal_physreg_copy 66tracksRegLiveness: true 67 68body: | 69 bb.0: 70 liveins: $vgpr0 71 %0:sreg_32_xm0 = COPY $vgpr0 72 %1:sreg_32_xm0 = COPY %0 73 S_ENDPGM implicit %1 74... 75