45 lines · plain
1# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 42# RUN: llc -mtriple=amdgcn -mcpu=tonga -run-pass=si-fix-sgpr-copies --verify-machineinstrs -o - %s | FileCheck %s3 4# Copy to $sgpr0 is disconnected and becomes an IMPLICIT_DEF5# Inserted V_AND_B32 defines virtual register after use.6 7---8name: si_fix_sgpr_copies_breaks_function9tracksRegLiveness: true10machineFunctionInfo:11 isEntryFunction: true12body: |13 bb.0:14 liveins: $sgpr015 16 ; CHECK-LABEL: name: si_fix_sgpr_copies_breaks_function17 ; CHECK: liveins: $sgpr018 ; CHECK-NEXT: {{ $}}19 ; CHECK-NEXT: [[COPY:%[0-9]+]]:sgpr_32 = COPY $sgpr020 ; CHECK-NEXT: [[S_MOV_B32_:%[0-9]+]]:sreg_32 = S_MOV_B32 1621 ; CHECK-NEXT: [[S_LSHR_B32_:%[0-9]+]]:sreg_32 = S_LSHR_B32 [[COPY]], killed [[S_MOV_B32_]], implicit-def dead $scc22 ; CHECK-NEXT: [[COPY1:%[0-9]+]]:sreg_32 = COPY killed [[S_LSHR_B32_]]23 ; CHECK-NEXT: [[S_MOV_B32_1:%[0-9]+]]:sreg_32 = S_MOV_B32 -3276824 ; CHECK-NEXT: [[COPY2:%[0-9]+]]:vgpr_32 = COPY killed [[S_MOV_B32_1]]25 ; CHECK-NEXT: [[V_XOR_B32_e64_:%[0-9]+]]:vgpr_32 = V_XOR_B32_e64 killed [[COPY1]], [[COPY2]], implicit $exec26 ; CHECK-NEXT: [[S_MOV_B32_2:%[0-9]+]]:sreg_32 = S_MOV_B32 6553527 ; CHECK-NEXT: [[V_AND_B32_e64_:%[0-9]+]]:vgpr_32 = V_AND_B32_e64 killed [[S_MOV_B32_2]], [[V_XOR_B32_e64_]], implicit $exec28 ; CHECK-NEXT: [[V_READFIRSTLANE_B32_:%[0-9]+]]:sreg_32_xm0 = V_READFIRSTLANE_B32 [[V_AND_B32_e64_]], implicit $exec29 ; CHECK-NEXT: $sgpr0 = COPY [[V_READFIRSTLANE_B32_]]30 ; CHECK-NEXT: SI_RETURN_TO_EPILOG $sgpr031 %0:sgpr_32 = COPY $sgpr032 %2:sreg_32 = S_MOV_B32 1633 %3:sreg_32 = S_LSHR_B32 %0, killed %2, implicit-def dead $scc34 %4:sreg_32 = COPY killed %335 %5:sreg_32 = S_MOV_B32 -3276836 %7:vgpr_32 = COPY killed %537 %6:vgpr_32 = V_XOR_B32_e64 killed %4, %7, implicit $exec38 %8:sreg_32 = S_MOV_B32 6553539 %10:sreg_32 = COPY %640 %9:sreg_32 = S_AND_B32 killed %8, killed %10, implicit-def dead $scc41 $sgpr0 = COPY %942 SI_RETURN_TO_EPILOG $sgpr043 44...45