| # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py | 
 | # RUN: llc -mtriple=amdgcn -mcpu=gfx90a -verify-machineinstrs -run-pass post-RA-hazard-rec %s -o - | FileCheck -check-prefix=GCN %s | 
 |  | 
 | --- | 
 | name:            highest_reg_shift_amt_v7 | 
 | tracksRegLiveness: true | 
 | body:             | | 
 |   bb.0: | 
 |  | 
 |     ; GCN-LABEL: name: highest_reg_shift_amt_v7 | 
 |     ; GCN: $vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr2_vgpr3 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: S_WAITCNT 0 | 
 |     ; GCN-NEXT: $vgpr0, $vgpr7 = V_SWAP_B32 undef $vgpr7, undef $vgpr0, implicit $exec | 
 |     ; GCN-NEXT: renamable $vgpr2_vgpr3 = V_LSHRREV_B64_e64 undef $vgpr0, killed $vgpr2_vgpr3, implicit $exec | 
 |     ; GCN-NEXT: $vgpr7, $vgpr0 = V_SWAP_B32 $vgpr0, $vgpr7, implicit $exec | 
 |     $vgpr7 = IMPLICIT_DEF | 
 |     $vgpr2_vgpr3 = IMPLICIT_DEF | 
 |     renamable $vgpr2_vgpr3 = V_LSHRREV_B64_e64 killed $vgpr7, killed $vgpr2_vgpr3, implicit $exec | 
 | ... | 
 |  | 
 | --- | 
 | name:            highest_reg_shift_amt_v15 | 
 | tracksRegLiveness: true | 
 | body:             | | 
 |   bb.0: | 
 |  | 
 |     ; GCN-LABEL: name: highest_reg_shift_amt_v15 | 
 |     ; GCN: $vgpr15 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr2_vgpr3 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: S_WAITCNT 0 | 
 |     ; GCN-NEXT: $vgpr0, $vgpr15 = V_SWAP_B32 undef $vgpr15, undef $vgpr0, implicit $exec | 
 |     ; GCN-NEXT: renamable $vgpr2_vgpr3 = V_LSHRREV_B64_e64 undef $vgpr0, killed $vgpr2_vgpr3, implicit $exec | 
 |     ; GCN-NEXT: $vgpr15, $vgpr0 = V_SWAP_B32 $vgpr0, $vgpr15, implicit $exec | 
 |     $vgpr15 = IMPLICIT_DEF | 
 |     $vgpr2_vgpr3 = IMPLICIT_DEF | 
 |     renamable $vgpr2_vgpr3 = V_LSHRREV_B64_e64 killed $vgpr15, killed $vgpr2_vgpr3, implicit $exec | 
 | ... | 
 |  | 
 | --- | 
 | name:            highest_reg_shift_amt_v255 | 
 | tracksRegLiveness: true | 
 | body:             | | 
 |   bb.0: | 
 |  | 
 |     ; GCN-LABEL: name: highest_reg_shift_amt_v255 | 
 |     ; GCN: $vgpr255 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr2_vgpr3 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: S_WAITCNT 0 | 
 |     ; GCN-NEXT: $vgpr0, $vgpr255 = V_SWAP_B32 undef $vgpr255, undef $vgpr0, implicit $exec | 
 |     ; GCN-NEXT: renamable $vgpr2_vgpr3 = V_LSHRREV_B64_e64 undef $vgpr0, killed $vgpr2_vgpr3, implicit $exec | 
 |     ; GCN-NEXT: $vgpr255, $vgpr0 = V_SWAP_B32 $vgpr0, $vgpr255, implicit $exec | 
 |     $vgpr255 = IMPLICIT_DEF | 
 |     $vgpr2_vgpr3 = IMPLICIT_DEF | 
 |     renamable $vgpr2_vgpr3 = V_LSHRREV_B64_e64 killed $vgpr255, killed $vgpr2_vgpr3, implicit $exec | 
 | ... | 
 |  | 
 | --- | 
 | name:            highest_reg_shift_amt_used_v0_dst | 
 | tracksRegLiveness: true | 
 | body:             | | 
 |   bb.0: | 
 |  | 
 |     ; GCN-LABEL: name: highest_reg_shift_amt_used_v0_dst | 
 |     ; GCN: $vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr2_vgpr3 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: S_WAITCNT 0 | 
 |     ; GCN-NEXT: $vgpr4, $vgpr7 = V_SWAP_B32 undef $vgpr7, undef $vgpr4, implicit $exec | 
 |     ; GCN-NEXT: renamable $vgpr0_vgpr1 = V_LSHRREV_B64_e64 undef $vgpr4, killed $vgpr2_vgpr3, implicit $exec | 
 |     ; GCN-NEXT: $vgpr7, $vgpr4 = V_SWAP_B32 $vgpr4, $vgpr7, implicit $exec | 
 |     $vgpr7 = IMPLICIT_DEF | 
 |     $vgpr2_vgpr3 = IMPLICIT_DEF | 
 |     renamable $vgpr0_vgpr1 = V_LSHRREV_B64_e64 killed $vgpr7, killed $vgpr2_vgpr3, implicit $exec | 
 | ... | 
 |  | 
 | --- | 
 | name:            highest_reg_shift_amt_used_v0_src | 
 | tracksRegLiveness: true | 
 | body:             | | 
 |   bb.0: | 
 |  | 
 |     ; GCN-LABEL: name: highest_reg_shift_amt_used_v0_src | 
 |     ; GCN: $vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr0_vgpr1 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: S_WAITCNT 0 | 
 |     ; GCN-NEXT: $vgpr4, $vgpr7 = V_SWAP_B32 undef $vgpr7, undef $vgpr4, implicit $exec | 
 |     ; GCN-NEXT: renamable $vgpr2_vgpr3 = V_LSHRREV_B64_e64 undef $vgpr4, killed $vgpr0_vgpr1, implicit $exec | 
 |     ; GCN-NEXT: $vgpr7, $vgpr4 = V_SWAP_B32 $vgpr4, $vgpr7, implicit $exec | 
 |     $vgpr7 = IMPLICIT_DEF | 
 |     $vgpr0_vgpr1 = IMPLICIT_DEF | 
 |     renamable $vgpr2_vgpr3 = V_LSHRREV_B64_e64 killed $vgpr7, killed $vgpr0_vgpr1, implicit $exec | 
 | ... | 
 |  | 
 | --- | 
 | name:            highest_reg_shift_amt_used_v0_both | 
 | tracksRegLiveness: true | 
 | body:             | | 
 |   bb.0: | 
 |  | 
 |     ; GCN-LABEL: name: highest_reg_shift_amt_used_v0_both | 
 |     ; GCN: $vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr0_vgpr1 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: S_WAITCNT 0 | 
 |     ; GCN-NEXT: $vgpr2, $vgpr7 = V_SWAP_B32 undef $vgpr7, undef $vgpr2, implicit $exec | 
 |     ; GCN-NEXT: renamable $vgpr0_vgpr1 = V_LSHRREV_B64_e64 undef $vgpr2, killed $vgpr0_vgpr1, implicit $exec | 
 |     ; GCN-NEXT: $vgpr7, $vgpr2 = V_SWAP_B32 $vgpr2, $vgpr7, implicit $exec | 
 |     $vgpr7 = IMPLICIT_DEF | 
 |     $vgpr0_vgpr1 = IMPLICIT_DEF | 
 |     renamable $vgpr0_vgpr1 = V_LSHRREV_B64_e64 killed $vgpr7, killed $vgpr0_vgpr1, implicit $exec | 
 | ... | 
 |  | 
 | --- | 
 | name:            highest_reg_shift_amt_overlapped_src | 
 | tracksRegLiveness: true | 
 | body:             | | 
 |   bb.0: | 
 |  | 
 |     ; GCN-LABEL: name: highest_reg_shift_amt_overlapped_src | 
 |     ; GCN: $vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr6_vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: S_WAITCNT 0 | 
 |     ; GCN-NEXT: $vgpr2, $vgpr6 = V_SWAP_B32 undef $vgpr6, undef $vgpr2, implicit $exec | 
 |     ; GCN-NEXT: $vgpr3, $vgpr7 = V_SWAP_B32 undef $vgpr7, undef $vgpr3, implicit $exec | 
 |     ; GCN-NEXT: renamable $vgpr0_vgpr1 = V_LSHRREV_B64_e64 undef $vgpr3, undef $vgpr2_vgpr3, implicit $exec | 
 |     ; GCN-NEXT: $vgpr6, $vgpr2 = V_SWAP_B32 $vgpr2, $vgpr6, implicit $exec | 
 |     ; GCN-NEXT: $vgpr7, $vgpr3 = V_SWAP_B32 $vgpr3, $vgpr7, implicit $exec | 
 |     $vgpr7 = IMPLICIT_DEF | 
 |     $vgpr6_vgpr7 = IMPLICIT_DEF | 
 |     renamable $vgpr0_vgpr1 = V_LSHRREV_B64_e64 killed $vgpr7, killed $vgpr6_vgpr7, implicit $exec | 
 | ... | 
 |  | 
 | --- | 
 | name:            highest_reg_shift_amt_overlapped_dst | 
 | tracksRegLiveness: true | 
 | body:             | | 
 |   bb.0: | 
 |  | 
 |     ; GCN-LABEL: name: highest_reg_shift_amt_overlapped_dst | 
 |     ; GCN: $vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr0_vgpr1 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: S_WAITCNT 0 | 
 |     ; GCN-NEXT: $vgpr2, $vgpr6 = V_SWAP_B32 undef $vgpr6, undef $vgpr2, implicit $exec | 
 |     ; GCN-NEXT: $vgpr3, $vgpr7 = V_SWAP_B32 undef $vgpr7, undef $vgpr3, implicit $exec | 
 |     ; GCN-NEXT: $vgpr2_vgpr3 = V_LSHRREV_B64_e64 undef $vgpr3, killed $vgpr0_vgpr1, implicit $exec | 
 |     ; GCN-NEXT: $vgpr6, $vgpr2 = V_SWAP_B32 $vgpr2, $vgpr6, implicit $exec | 
 |     ; GCN-NEXT: $vgpr7, $vgpr3 = V_SWAP_B32 $vgpr3, $vgpr7, implicit $exec | 
 |     $vgpr7 = IMPLICIT_DEF | 
 |     $vgpr0_vgpr1 = IMPLICIT_DEF | 
 |     renamable $vgpr6_vgpr7 = V_LSHRREV_B64_e64 killed $vgpr7, killed $vgpr0_vgpr1, implicit $exec | 
 | ... | 
 |  | 
 | --- | 
 | name:            highest_reg_shift_amt_overlapped_both | 
 | tracksRegLiveness: true | 
 | body:             | | 
 |   bb.0: | 
 |  | 
 |     ; GCN-LABEL: name: highest_reg_shift_amt_overlapped_both | 
 |     ; GCN: $vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr6_vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: S_WAITCNT 0 | 
 |     ; GCN-NEXT: $vgpr0, $vgpr6 = V_SWAP_B32 undef $vgpr6, undef $vgpr0, implicit $exec | 
 |     ; GCN-NEXT: $vgpr1, $vgpr7 = V_SWAP_B32 undef $vgpr7, undef $vgpr1, implicit $exec | 
 |     ; GCN-NEXT: $vgpr0_vgpr1 = V_LSHRREV_B64_e64 undef $vgpr1, undef $vgpr0_vgpr1, implicit $exec | 
 |     ; GCN-NEXT: $vgpr6, $vgpr0 = V_SWAP_B32 $vgpr0, $vgpr6, implicit $exec | 
 |     ; GCN-NEXT: $vgpr7, $vgpr1 = V_SWAP_B32 $vgpr1, $vgpr7, implicit $exec | 
 |     $vgpr7 = IMPLICIT_DEF | 
 |     $vgpr6_vgpr7 = IMPLICIT_DEF | 
 |     renamable $vgpr6_vgpr7 = V_LSHRREV_B64_e64 killed $vgpr7, killed $vgpr6_vgpr7, implicit $exec | 
 | ... | 
 |  | 
 | --- | 
 | name:            highest_reg_shift_amt_hazard_in_swap | 
 | tracksRegLiveness: true | 
 | body:             | | 
 |   bb.0: | 
 |  | 
 |     ; GCN-LABEL: name: highest_reg_shift_amt_hazard_in_swap | 
 |     ; GCN: $vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr0_vgpr1 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr4_vgpr5 = V_MFMA_F64_4X4X4F64_vgprcd_e64 $vgpr0_vgpr1, $vgpr0_vgpr1, $vgpr0_vgpr1, 0, 0, 0, implicit $mode, implicit $exec | 
 |     ; GCN-NEXT: S_WAITCNT 0 | 
 |     ; GCN-NEXT: S_NOP 4 | 
 |     ; GCN-NEXT: $vgpr4, $vgpr7 = V_SWAP_B32 undef $vgpr7, undef $vgpr4, implicit $exec | 
 |     ; GCN-NEXT: renamable $vgpr2_vgpr3 = V_LSHRREV_B64_e64 undef $vgpr4, killed $vgpr0_vgpr1, implicit $exec | 
 |     ; GCN-NEXT: $vgpr7, $vgpr4 = V_SWAP_B32 $vgpr4, $vgpr7, implicit $exec | 
 |     $vgpr7 = IMPLICIT_DEF | 
 |     $vgpr0_vgpr1 = IMPLICIT_DEF | 
 |     $vgpr4_vgpr5 = V_MFMA_F64_4X4X4F64_vgprcd_e64 $vgpr0_vgpr1, $vgpr0_vgpr1, $vgpr0_vgpr1, 0, 0, 0, implicit $mode, implicit $exec | 
 |     renamable $vgpr2_vgpr3 = V_LSHRREV_B64_e64 killed $vgpr7, killed $vgpr0_vgpr1, implicit $exec | 
 | ... | 
 |  | 
 | --- | 
 | name:            highest_reg_shift_amt_hazard_in_swap2 | 
 | tracksRegLiveness: true | 
 | body:             | | 
 |   bb.0: | 
 |  | 
 |     ; GCN-LABEL: name: highest_reg_shift_amt_hazard_in_swap2 | 
 |     ; GCN: $vgpr1 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr6_vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr1 = V_DOT4C_I32_I8_e32 $vgpr7, $vgpr7, $vgpr1, implicit $exec | 
 |     ; GCN-NEXT: S_WAITCNT 0 | 
 |     ; GCN-NEXT: $vgpr0, $vgpr6 = V_SWAP_B32 undef $vgpr6, undef $vgpr0, implicit $exec | 
 |     ; GCN-NEXT: S_NOP 0 | 
 |     ; GCN-NEXT: $vgpr1, $vgpr7 = V_SWAP_B32 undef $vgpr7, undef $vgpr1, implicit $exec | 
 |     ; GCN-NEXT: $vgpr0_vgpr1 = V_LSHRREV_B64_e64 undef $vgpr1, undef $vgpr0_vgpr1, implicit $exec | 
 |     ; GCN-NEXT: $vgpr6, $vgpr0 = V_SWAP_B32 $vgpr0, $vgpr6, implicit $exec | 
 |     ; GCN-NEXT: $vgpr7, $vgpr1 = V_SWAP_B32 $vgpr1, $vgpr7, implicit $exec | 
 |     $vgpr1 = IMPLICIT_DEF | 
 |     $vgpr7 = IMPLICIT_DEF | 
 |     $vgpr6_vgpr7 = IMPLICIT_DEF | 
 |     $vgpr1 = V_DOT4C_I32_I8_e32 $vgpr7, $vgpr7, $vgpr1, implicit $exec | 
 |     renamable $vgpr6_vgpr7 = V_LSHRREV_B64_e64 killed $vgpr7, killed $vgpr6_vgpr7, implicit $exec | 
 | ... | 
 |  | 
 | --- | 
 | name:            highest_reg_shift_amt_v7_bundle | 
 | tracksRegLiveness: true | 
 | body:             | | 
 |   bb.0: | 
 |  | 
 |     ; GCN-LABEL: name: highest_reg_shift_amt_v7_bundle | 
 |     ; GCN: $vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr2_vgpr3 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: BUNDLE implicit-def $vgpr2_vgpr3, implicit-def $vgpr7 { | 
 |     ; GCN-NEXT:   S_WAITCNT 0 | 
 |     ; GCN-NEXT:   $vgpr0, $vgpr7 = V_SWAP_B32 undef $vgpr7, undef $vgpr0, implicit $exec | 
 |     ; GCN-NEXT:   renamable $vgpr2_vgpr3 = V_LSHRREV_B64_e64 undef $vgpr0, killed $vgpr2_vgpr3, implicit $exec | 
 |     ; GCN-NEXT: } | 
 |     ; GCN-NEXT: $vgpr7, $vgpr0 = V_SWAP_B32 $vgpr0, $vgpr7, implicit $exec | 
 |     $vgpr7 = IMPLICIT_DEF | 
 |     $vgpr2_vgpr3 = IMPLICIT_DEF | 
 |     BUNDLE implicit-def $vgpr2_vgpr3, implicit-def $vgpr7 { | 
 |       renamable $vgpr2_vgpr3 = V_LSHRREV_B64_e64 $vgpr7, killed $vgpr2_vgpr3, implicit $exec | 
 |     } | 
 | ... | 
 |  | 
 | --- | 
 | name:            highest_reg_shift_amt_hazard_in_swap2_bundle | 
 | tracksRegLiveness: true | 
 | body:             | | 
 |   bb.0: | 
 |  | 
 |     ; GCN-LABEL: name: highest_reg_shift_amt_hazard_in_swap2_bundle | 
 |     ; GCN: $vgpr1 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr6_vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: BUNDLE internal $vgpr7, implicit-def $vgpr1, implicit-def $vgpr6_vgpr7 { | 
 |     ; GCN-NEXT:   $vgpr1 = IMPLICIT_DEF | 
 |     ; GCN-NEXT:   $vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT:   $vgpr6_vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT:   $vgpr1 = V_DOT4C_I32_I8_e32 $vgpr7, $vgpr7, $vgpr1, implicit $exec | 
 |     ; GCN-NEXT:   S_WAITCNT 0 | 
 |     ; GCN-NEXT:   $vgpr0, $vgpr6 = V_SWAP_B32 undef $vgpr6, undef $vgpr0, implicit $exec | 
 |     ; GCN-NEXT:   S_NOP 0 | 
 |     ; GCN-NEXT:   $vgpr1, $vgpr7 = V_SWAP_B32 undef $vgpr7, undef $vgpr1, implicit $exec | 
 |     ; GCN-NEXT:   $vgpr0_vgpr1 = V_LSHRREV_B64_e64 undef $vgpr1, undef $vgpr0_vgpr1, implicit $exec | 
 |     ; GCN-NEXT: } | 
 |     ; GCN-NEXT: $vgpr6, $vgpr0 = V_SWAP_B32 $vgpr0, $vgpr6, implicit $exec | 
 |     ; GCN-NEXT: $vgpr7, $vgpr1 = V_SWAP_B32 $vgpr1, $vgpr7, implicit $exec | 
 |     $vgpr1 = IMPLICIT_DEF | 
 |     $vgpr7 = IMPLICIT_DEF | 
 |     $vgpr6_vgpr7 = IMPLICIT_DEF | 
 |     BUNDLE implicit-def $vgpr1, implicit-def $vgpr6_vgpr7, internal $vgpr7 { | 
 |       $vgpr1 = IMPLICIT_DEF | 
 |       $vgpr7 = IMPLICIT_DEF | 
 |       $vgpr6_vgpr7 = IMPLICIT_DEF | 
 |       $vgpr1 = V_DOT4C_I32_I8_e32 $vgpr7, $vgpr7, $vgpr1, implicit $exec | 
 |       renamable $vgpr6_vgpr7 = V_LSHRREV_B64_e64 killed $vgpr7, killed $vgpr6_vgpr7, implicit $exec | 
 |     } | 
 | ... | 
 |  | 
 | --- | 
 | name:            highest_reg_shift_amt_v7_defined | 
 | tracksRegLiveness: true | 
 | body:             | | 
 |   bb.0: | 
 |  | 
 |     ; GCN-LABEL: name: highest_reg_shift_amt_v7_defined | 
 |     ; GCN: $vgpr0 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr2_vgpr3 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: S_WAITCNT 0 | 
 |     ; GCN-NEXT: $vgpr0, $vgpr7 = V_SWAP_B32 undef $vgpr7, undef $vgpr0, implicit $exec | 
 |     ; GCN-NEXT: renamable $vgpr2_vgpr3 = V_LSHRREV_B64_e64 undef $vgpr0, killed $vgpr2_vgpr3, implicit $exec | 
 |     ; GCN-NEXT: $vgpr7, $vgpr0 = V_SWAP_B32 $vgpr0, $vgpr7, implicit $exec | 
 |     $vgpr0 = IMPLICIT_DEF | 
 |     $vgpr7 = IMPLICIT_DEF | 
 |     $vgpr2_vgpr3 = IMPLICIT_DEF | 
 |     renamable $vgpr2_vgpr3 = V_LSHRREV_B64_e64 killed $vgpr7, killed $vgpr2_vgpr3, implicit $exec | 
 | ... | 
 |  | 
 | --- | 
 | name:            highest_reg_shift_amt_hazard_in_swap2_defined | 
 | tracksRegLiveness: true | 
 | body:             | | 
 |   bb.0: | 
 |  | 
 |     ; GCN-LABEL: name: highest_reg_shift_amt_hazard_in_swap2_defined | 
 |     ; GCN: $vgpr0 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr1 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr6_vgpr7 = IMPLICIT_DEF | 
 |     ; GCN-NEXT: $vgpr1 = V_DOT4C_I32_I8_e32 $vgpr7, $vgpr7, $vgpr1, implicit $exec | 
 |     ; GCN-NEXT: S_WAITCNT 0 | 
 |     ; GCN-NEXT: $vgpr0, $vgpr6 = V_SWAP_B32 undef $vgpr6, undef $vgpr0, implicit $exec | 
 |     ; GCN-NEXT: S_NOP 0 | 
 |     ; GCN-NEXT: $vgpr1, $vgpr7 = V_SWAP_B32 undef $vgpr7, undef $vgpr1, implicit $exec | 
 |     ; GCN-NEXT: $vgpr0_vgpr1 = V_LSHRREV_B64_e64 undef $vgpr1, undef $vgpr0_vgpr1, implicit $exec | 
 |     ; GCN-NEXT: $vgpr6, $vgpr0 = V_SWAP_B32 $vgpr0, $vgpr6, implicit $exec | 
 |     ; GCN-NEXT: $vgpr7, $vgpr1 = V_SWAP_B32 $vgpr1, $vgpr7, implicit $exec | 
 |     $vgpr0 = IMPLICIT_DEF | 
 |     $vgpr1 = IMPLICIT_DEF | 
 |     $vgpr7 = IMPLICIT_DEF | 
 |     $vgpr6_vgpr7 = IMPLICIT_DEF | 
 |     $vgpr1 = V_DOT4C_I32_I8_e32 $vgpr7, $vgpr7, $vgpr1, implicit $exec | 
 |     renamable $vgpr6_vgpr7 = V_LSHRREV_B64_e64 killed $vgpr7, killed $vgpr6_vgpr7, implicit $exec | 
 | ... |