1# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2# RUN: llc -march=amdgcn -run-pass=amdgpu-postlegalizer-combiner -verify-machineinstrs %s -o - | FileCheck -check-prefix=GCN %s
3
4---
5name:            select_from_different_results_of_unmerge_values
6tracksRegLiveness: true
7body:             |
8  bb.0:
9    liveins: $vgpr0
10
11    ; GCN-LABEL: name: select_from_different_results_of_unmerge_values
12    ; GCN: liveins: $vgpr0
13    ; GCN: [[DEF:%[0-9]+]]:_(<2 x s32>) = G_IMPLICIT_DEF
14    ; GCN: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
15    ; GCN: [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[COPY]](s32)
16    ; GCN: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[DEF]](<2 x s32>)
17    ; GCN: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[TRUNC]](s1), [[UV]], [[UV1]]
18    ; GCN: $vgpr0 = COPY [[SELECT]](s32)
19    ; GCN: SI_RETURN_TO_EPILOG $vgpr0
20    %0:_(<2 x s32>) = G_IMPLICIT_DEF
21    %1:_(s32) = COPY $vgpr0
22    %2:_(s1) = G_TRUNC %1:_(s32)
23    %3:_(s32), %4:_(s32) = G_UNMERGE_VALUES %0:_(<2 x s32>)
24    %5:_(s32) = G_SELECT %2:_(s1), %3:_, %4:_
25    $vgpr0 = COPY %5
26    SI_RETURN_TO_EPILOG $vgpr0
27
28...
29
30---
31name:            select_from_same_results_of_unmerge_values
32tracksRegLiveness: true
33body:             |
34  bb.0:
35    liveins: $vgpr0
36
37    ; GCN-LABEL: name: select_from_same_results_of_unmerge_values
38    ; GCN: liveins: $vgpr0
39    ; GCN: [[DEF:%[0-9]+]]:_(<2 x s32>) = G_IMPLICIT_DEF
40    ; GCN: [[BITCAST:%[0-9]+]]:_(s64) = G_BITCAST [[DEF]](<2 x s32>)
41    ; GCN: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[BITCAST]](s64)
42    ; GCN: $vgpr0 = COPY [[TRUNC]](s32)
43    ; GCN: SI_RETURN_TO_EPILOG $vgpr0
44    %0:_(<2 x s32>) = G_IMPLICIT_DEF
45    %1:_(s32) = COPY $vgpr0
46    %2:_(s1) = G_TRUNC %1:_(s32)
47    %3:_(s32), %4:_(s32) = G_UNMERGE_VALUES %0:_(<2 x s32>)
48    %5:_(s32) = G_SELECT %2:_(s1), %3:_, %3:_
49    $vgpr0 = COPY %5
50    SI_RETURN_TO_EPILOG $vgpr0
51
52...
53
54---
55name: select_different_result_from_different_unmerge_values_with_the_same_source
56tracksRegLiveness: true
57body: |
58  bb.0:
59    liveins: $vgpr0_vgpr1_vgpr2_vgpr3, $vgpr4
60
61    ; GCN-LABEL: name: select_different_result_from_different_unmerge_values_with_the_same_source
62    ; GCN: liveins: $vgpr0_vgpr1_vgpr2_vgpr3, $vgpr4
63    ; GCN: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
64    ; GCN: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr4
65    ; GCN: [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[COPY1]](s32)
66    ; GCN: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<4 x s32>)
67    ; GCN: [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<4 x s32>)
68    ; GCN: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[TRUNC]](s1), [[UV1]], [[UV7]]
69    ; GCN: $vgpr0 = COPY [[SELECT]](s32)
70    %0:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
71    %1:_(s32) = COPY $vgpr4
72    %2:_(s1) = G_TRUNC %1:_(s32)
73    %3:_(s32), %4:_(s32), %5:_(s32), %6:_(s32) = G_UNMERGE_VALUES %0:_(<4 x s32>)
74    %7:_(s32), %8:_(s32), %9:_(s32), %10:_(s32) = G_UNMERGE_VALUES %0:_(<4 x s32>)
75    %11:_(s32) = G_SELECT %2:_(s1), %4:_, %10:_
76    $vgpr0 = COPY %11
77...
78
79---
80name: select_same_result_from_different_unmerge_values_with_the_same_source
81tracksRegLiveness: true
82body: |
83  bb.0:
84    liveins: $vgpr0_vgpr1_vgpr2_vgpr3, $vgpr4
85
86    ; GCN-LABEL: name: select_same_result_from_different_unmerge_values_with_the_same_source
87    ; GCN: liveins: $vgpr0_vgpr1_vgpr2_vgpr3, $vgpr4
88    ; GCN: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
89    ; GCN: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<4 x s32>)
90    ; GCN: $vgpr0 = COPY [[UV1]](s32)
91    %0:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
92    %1:_(s32) = COPY $vgpr4
93    %2:_(s1) = G_TRUNC %1:_(s32)
94    %3:_(s32), %4:_(s32), %5:_(s32), %6:_(s32) = G_UNMERGE_VALUES %0:_(<4 x s32>)
95    %7:_(s32), %8:_(s32), %9:_(s32), %10:_(s32) = G_UNMERGE_VALUES %0:_(<4 x s32>)
96    %11:_(s32) = G_SELECT %2:_(s1), %4:_, %8:_
97    $vgpr0 = COPY %11
98...
99