1# RUN: llc -mtriple=amdgcn -run-pass si-fold-operands -verify-machineinstrs %s -o - | FileCheck -check-prefix=GCN %s 2 3# GCN-LABEL: name: fold-imm-copy 4# GCN: V_AND_B32_e32 65535 5 6--- 7name: fold-imm-copy 8tracksRegLiveness: true 9body: | 10 bb.0: 11 liveins: $vgpr0, $sgpr0_sgpr1 12 %0:vgpr_32 = COPY $vgpr0 13 %1:sgpr_64 = COPY $sgpr0_sgpr1 14 %2:sgpr_128 = S_LOAD_DWORDX4_IMM %1, 9, 0 15 %3:sreg_32_xm0 = S_MOV_B32 2 16 %4:vgpr_32 = V_LSHLREV_B32_e64 killed %3, %0, implicit $exec 17 %5:vgpr_32 = V_MOV_B32_e32 0, implicit $exec 18 %6:vreg_64 = REG_SEQUENCE killed %4, %subreg.sub0, killed %5, %subreg.sub1 19 %7:vgpr_32 = BUFFER_LOAD_DWORD_ADDR64 %6, %2, 0, 4, 0, 0, implicit $exec 20 %8:sreg_32_xm0 = S_MOV_B32 65535 21 %9:vgpr_32 = COPY %8 22 %10:vgpr_32 = V_AND_B32_e32 %7, %9, implicit $exec 23... 24 25--- 26# GCN-LABEL: name: no_extra_fold_on_same_opnd 27# The first XOR needs commuting to fold that immediate operand. 28# GCN: V_XOR_B32_e32 0, %1 29# GCN: V_XOR_B32_e32 %2, %4.sub0 30name: no_extra_fold_on_same_opnd 31tracksRegLiveness: true 32body: | 33 bb.0: 34 %0:vgpr_32 = IMPLICIT_DEF 35 %1:vgpr_32 = IMPLICIT_DEF 36 %2:vgpr_32 = IMPLICIT_DEF 37 %3:vgpr_32 = V_MOV_B32_e32 0, implicit $exec 38 %4:vreg_64 = REG_SEQUENCE killed %0, %subreg.sub0, killed %3, %subreg.sub1 39 %5:vgpr_32 = V_XOR_B32_e32 %1, %4.sub1, implicit $exec 40 %6:vgpr_32 = V_XOR_B32_e32 %2, %4.sub0, implicit $exec 41... 42 43--- 44 45# Make sure the subreg index is not reinterpreted when folding 46# immediates 47# 48# GCN-LABEL: name: clear_subreg_imm_fold{{$}} 49# GCN: %1:sgpr_32 = S_MOV_B32 4294967288 50# GCN: %2:sgpr_32 = S_MOV_B32 4294967295 51name: clear_subreg_imm_fold 52tracksRegLiveness: true 53body: | 54 bb.0: 55 %0:sreg_64 = S_MOV_B64 -8 56 %1:sgpr_32 = COPY %0.sub0 57 %2:sgpr_32 = COPY %0.sub1 58 S_ENDPGM 0, implicit %1, implicit %2 59 60... 61 62# GCN-LABEL: name: no_fold_imm_into_m0{{$}} 63# GCN: %0:sreg_32 = S_MOV_B32 -8 64# GCN-NEXT: $m0 = COPY %0 65 66--- 67name: no_fold_imm_into_m0 68tracksRegLiveness: true 69body: | 70 bb.0: 71 %0:sreg_32 = S_MOV_B32 -8 72 $m0 = COPY %0 73 S_ENDPGM 0, implicit $m0 74 75... 76 77# GCN-LABEL: name: fold_sgpr_imm_to_vgpr_copy{{$}} 78# GCN: $vgpr0 = V_MOV_B32_e32 -8, implicit $exec 79--- 80name: fold_sgpr_imm_to_vgpr_copy 81tracksRegLiveness: true 82body: | 83 bb.0: 84 %0:sreg_32 = S_MOV_B32 -8 85 $vgpr0 = COPY %0 86 S_ENDPGM 0, implicit $vgpr0 87 88... 89 90# The users of $vgpr1 should not be visited for further immediate 91# folding. 92 93# GCN-LABEL: name: no_fold_physreg_users_vgpr{{$}} 94# GCN: $vgpr1 = V_MOV_B32_e32 0, implicit $exec 95# GCN-NEXT: S_NOP 0, implicit-def $vgpr1 96# GCN-NEXT: %2:vgpr_32 = COPY $vgpr1 97# GCN-NEXT: $vgpr2 = COPY %2 98--- 99name: no_fold_physreg_users_vgpr 100tracksRegLiveness: true 101body: | 102 bb.0: 103 %0:sreg_32 = S_MOV_B32 0 104 %1:vgpr_32 = COPY %0 105 $vgpr1 = COPY %0 106 S_NOP 0, implicit-def $vgpr1 107 %2:vgpr_32 = COPY $vgpr1 108 $vgpr2 = COPY %2 109 S_ENDPGM 0 110 111... 112