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llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/postlegalizercombiner-selec...

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GlobalISel: fix CombinerHelper::matchEqualDefs() This matcher was always returning true for the different results of a same instruction. Differential Revision:
2020-05-29 06:30:23 +08:00
# 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:
[GISel] Add new GISel combiners for G_SELECT https://reviews.llvm.org/D83833 Patch adds two new GICombinerRules for G_SELECT. The rules include: combining selects with undef comparisons into their first selectee value, and to combine away selects with constant comparisons. Patch additionally adds a new combiner test for the AArch64 target to test these new G_SELECT combiner rules and the existing select_same_val combiner rule. Patch by mkitzan
2020-08-28 00:38:48 +08:00
liveins: $vgpr0
GlobalISel: fix CombinerHelper::matchEqualDefs() This matcher was always returning true for the different results of a same instruction. Differential Revision:
2020-05-29 06:30:23 +08:00
; GCN-LABEL: name: select_from_different_results_of_unmerge_values
[GISel] Add new GISel combiners for G_SELECT https://reviews.llvm.org/D83833 Patch adds two new GICombinerRules for G_SELECT. The rules include: combining selects with undef comparisons into their first selectee value, and to combine away selects with constant comparisons. Patch additionally adds a new combiner test for the AArch64 target to test these new G_SELECT combiner rules and the existing select_same_val combiner rule. Patch by mkitzan
2020-08-28 00:38:48 +08:00
; GCN: liveins: $vgpr0
[AMDGPU][NFC] Pre-commit regenerated test
2022-01-25 22:22:28 +08:00
; GCN-NEXT: {{ $}}
[AMDGPU][GlobalISel] Combine unmerge of undef Fold (unmerge undef) -> undef, undef, ... Differential Revision: https://reviews.llvm.org/D118138
2022-01-25 22:20:42 +08:00
; GCN-NEXT: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
; GCN-NEXT: $vgpr0 = COPY [[DEF]](s32)
[AMDGPU][NFC] Pre-commit regenerated test
2022-01-25 22:22:28 +08:00
; GCN-NEXT: SI_RETURN_TO_EPILOG $vgpr0
[GISel] Add new GISel combiners for G_SELECT https://reviews.llvm.org/D83833 Patch adds two new GICombinerRules for G_SELECT. The rules include: combining selects with undef comparisons into their first selectee value, and to combine away selects with constant comparisons. Patch additionally adds a new combiner test for the AArch64 target to test these new G_SELECT combiner rules and the existing select_same_val combiner rule. Patch by mkitzan
2020-08-28 00:38:48 +08:00
%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
GlobalISel: fix CombinerHelper::matchEqualDefs() This matcher was always returning true for the different results of a same instruction. Differential Revision:
2020-05-29 06:30:23 +08:00
SI_RETURN_TO_EPILOG $vgpr0
...
---
name: select_from_same_results_of_unmerge_values
tracksRegLiveness: true
body: |
bb.0:
[GISel] Add new GISel combiners for G_SELECT https://reviews.llvm.org/D83833 Patch adds two new GICombinerRules for G_SELECT. The rules include: combining selects with undef comparisons into their first selectee value, and to combine away selects with constant comparisons. Patch additionally adds a new combiner test for the AArch64 target to test these new G_SELECT combiner rules and the existing select_same_val combiner rule. Patch by mkitzan
2020-08-28 00:38:48 +08:00
liveins: $vgpr0
GlobalISel: fix CombinerHelper::matchEqualDefs() This matcher was always returning true for the different results of a same instruction. Differential Revision:
2020-05-29 06:30:23 +08:00
; GCN-LABEL: name: select_from_same_results_of_unmerge_values
[GISel] Add new GISel combiners for G_SELECT https://reviews.llvm.org/D83833 Patch adds two new GICombinerRules for G_SELECT. The rules include: combining selects with undef comparisons into their first selectee value, and to combine away selects with constant comparisons. Patch additionally adds a new combiner test for the AArch64 target to test these new G_SELECT combiner rules and the existing select_same_val combiner rule. Patch by mkitzan
2020-08-28 00:38:48 +08:00
; GCN: liveins: $vgpr0
[AMDGPU][NFC] Pre-commit regenerated test
2022-01-25 22:22:28 +08:00
; GCN-NEXT: {{ $}}
[AMDGPU][GlobalISel] Combine unmerge of undef Fold (unmerge undef) -> undef, undef, ... Differential Revision: https://reviews.llvm.org/D118138
2022-01-25 22:20:42 +08:00
; GCN-NEXT: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
; GCN-NEXT: $vgpr0 = COPY [[DEF]](s32)
[AMDGPU][NFC] Pre-commit regenerated test
2022-01-25 22:22:28 +08:00
; GCN-NEXT: SI_RETURN_TO_EPILOG $vgpr0
[GISel] Add new GISel combiners for G_SELECT https://reviews.llvm.org/D83833 Patch adds two new GICombinerRules for G_SELECT. The rules include: combining selects with undef comparisons into their first selectee value, and to combine away selects with constant comparisons. Patch additionally adds a new combiner test for the AArch64 target to test these new G_SELECT combiner rules and the existing select_same_val combiner rule. Patch by mkitzan
2020-08-28 00:38:48 +08:00
%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
GlobalISel: fix CombinerHelper::matchEqualDefs() This matcher was always returning true for the different results of a same instruction. Differential Revision:
2020-05-29 06:30:23 +08:00
SI_RETURN_TO_EPILOG $vgpr0
...
GlobalISel: Fix matchEqualDefs for instructions with multiple defs Instructions that produceSameValue produce same values for operands with same index. matchEqualDefs used to return true for any two values from different instructions that produce same values. Fix this by checking if values are defined by operands with the same index. Differential Revision: https://reviews.llvm.org/D107362
2021-08-05 19:59:37 +08:00
---
name: select_different_result_from_different_unmerge_values_with_the_same_source
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0_vgpr1_vgpr2_vgpr3, $vgpr4
; GCN-LABEL: name: select_different_result_from_different_unmerge_values_with_the_same_source
; GCN: liveins: $vgpr0_vgpr1_vgpr2_vgpr3, $vgpr4
[AMDGPU][NFC] Pre-commit regenerated test
2022-01-25 22:22:28 +08:00
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
; GCN-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr4
; GCN-NEXT: [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[COPY1]](s32)
; GCN-NEXT: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<4 x s32>)
; GCN-NEXT: [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<4 x s32>)
; GCN-NEXT: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[TRUNC]](s1), [[UV1]], [[UV7]]
; GCN-NEXT: $vgpr0 = COPY [[SELECT]](s32)
GlobalISel: Fix matchEqualDefs for instructions with multiple defs Instructions that produceSameValue produce same values for operands with same index. matchEqualDefs used to return true for any two values from different instructions that produce same values. Fix this by checking if values are defined by operands with the same index. Differential Revision: https://reviews.llvm.org/D107362
2021-08-05 19:59:37 +08:00
%0:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
%1:_(s32) = COPY $vgpr4
%2:_(s1) = G_TRUNC %1:_(s32)
%3:_(s32), %4:_(s32), %5:_(s32), %6:_(s32) = G_UNMERGE_VALUES %0:_(<4 x s32>)
%7:_(s32), %8:_(s32), %9:_(s32), %10:_(s32) = G_UNMERGE_VALUES %0:_(<4 x s32>)
%11:_(s32) = G_SELECT %2:_(s1), %4:_, %10:_
$vgpr0 = COPY %11
...
---
name: select_same_result_from_different_unmerge_values_with_the_same_source
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0_vgpr1_vgpr2_vgpr3, $vgpr4
; GCN-LABEL: name: select_same_result_from_different_unmerge_values_with_the_same_source
; GCN: liveins: $vgpr0_vgpr1_vgpr2_vgpr3, $vgpr4
[AMDGPU][NFC] Pre-commit regenerated test
2022-01-25 22:22:28 +08:00
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
; GCN-NEXT: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<4 x s32>)
; GCN-NEXT: $vgpr0 = COPY [[UV1]](s32)
GlobalISel: Fix matchEqualDefs for instructions with multiple defs Instructions that produceSameValue produce same values for operands with same index. matchEqualDefs used to return true for any two values from different instructions that produce same values. Fix this by checking if values are defined by operands with the same index. Differential Revision: https://reviews.llvm.org/D107362
2021-08-05 19:59:37 +08:00
%0:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
%1:_(s32) = COPY $vgpr4
%2:_(s1) = G_TRUNC %1:_(s32)
%3:_(s32), %4:_(s32), %5:_(s32), %6:_(s32) = G_UNMERGE_VALUES %0:_(<4 x s32>)
%7:_(s32), %8:_(s32), %9:_(s32), %10:_(s32) = G_UNMERGE_VALUES %0:_(<4 x s32>)
%11:_(s32) = G_SELECT %2:_(s1), %4:_, %8:_
$vgpr0 = COPY %11
...