| # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py |
| # RUN: llc -march=amdgcn -run-pass=amdgpu-postlegalizer-combiner -verify-machineinstrs %s -o - | FileCheck -check-prefix=GCN %s |
| |
| --- |
| name: select_from_different_results_of_unmerge_values |
| tracksRegLiveness: true |
| body: | |
| bb.0: |
| liveins: $vgpr0 |
| |
| ; GCN-LABEL: name: select_from_different_results_of_unmerge_values |
| ; GCN: liveins: $vgpr0 |
| ; GCN: [[DEF:%[0-9]+]]:_(<2 x s32>) = G_IMPLICIT_DEF |
| ; GCN: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0 |
| ; GCN: [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[COPY]](s32) |
| ; GCN: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[DEF]](<2 x s32>) |
| ; GCN: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[TRUNC]](s1), [[UV]], [[UV1]] |
| ; GCN: $vgpr0 = COPY [[SELECT]](s32) |
| ; GCN: SI_RETURN_TO_EPILOG $vgpr0 |
| %0:_(<2 x s32>) = G_IMPLICIT_DEF |
| %1:_(s32) = COPY $vgpr0 |
| %2:_(s1) = G_TRUNC %1:_(s32) |
| %3:_(s32), %4:_(s32) = G_UNMERGE_VALUES %0:_(<2 x s32>) |
| %5:_(s32) = G_SELECT %2:_(s1), %3:_, %4:_ |
| $vgpr0 = COPY %5 |
| SI_RETURN_TO_EPILOG $vgpr0 |
| |
| ... |
| |
| --- |
| name: select_from_same_results_of_unmerge_values |
| tracksRegLiveness: true |
| body: | |
| bb.0: |
| liveins: $vgpr0 |
| |
| ; GCN-LABEL: name: select_from_same_results_of_unmerge_values |
| ; GCN: liveins: $vgpr0 |
| ; GCN: [[DEF:%[0-9]+]]:_(<2 x s32>) = G_IMPLICIT_DEF |
| ; GCN: [[BITCAST:%[0-9]+]]:_(s64) = G_BITCAST [[DEF]](<2 x s32>) |
| ; GCN: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[BITCAST]](s64) |
| ; GCN: $vgpr0 = COPY [[TRUNC]](s32) |
| ; GCN: SI_RETURN_TO_EPILOG $vgpr0 |
| %0:_(<2 x s32>) = G_IMPLICIT_DEF |
| %1:_(s32) = COPY $vgpr0 |
| %2:_(s1) = G_TRUNC %1:_(s32) |
| %3:_(s32), %4:_(s32) = G_UNMERGE_VALUES %0:_(<2 x s32>) |
| %5:_(s32) = G_SELECT %2:_(s1), %3:_, %3:_ |
| $vgpr0 = COPY %5 |
| SI_RETURN_TO_EPILOG $vgpr0 |
| |
| ... |