[llvm] RenameIndependentSubregs: Add missing sub-range for new IMPLICIT_DEFs (PR #89050)

[Petar Avramovic via llvm-commits]

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@@ -4054,22 +4054,22 @@ body:             |
   ; GCN-NEXT:   renamable $sgpr0 = S_CSELECT_B32 1, 0, implicit $scc
   ; GCN-NEXT:   renamable $sgpr0 = S_LSHL_B32 killed renamable $sgpr0, 1, implicit-def dead $scc
   ; GCN-NEXT:   renamable $sgpr0 = S_OR_B32 killed renamable $sgpr0, killed renamable $sgpr33, implicit-def dead $scc
-  ; GCN-NEXT:   renamable $vgpr3 = COPY killed renamable $sgpr0
+  ; GCN-NEXT:   renamable $vgpr15 = COPY killed renamable $sgpr0
   ; GCN-NEXT:   S_BRANCH %bb.42
   ; GCN-NEXT: {{  $}}
   ; GCN-NEXT: bb.82 (%ir-block.363):
   ; GCN-NEXT:   successors: %bb.40(0x80000000)
   ; GCN-NEXT:   liveins: $sgpr4, $sgpr5, $sgpr6, $sgpr7, $sgpr33, $vgpr0, $sgpr8_sgpr9:0x000000000000000F, $sgpr10_sgpr11, $sgpr12_sgpr13, $sgpr0_sgpr1_sgpr2_sgpr3
   ; GCN-NEXT: {{  $}}
   ; GCN-NEXT:   renamable $sgpr14 = S_OR_B32 renamable $sgpr33, 2, implicit-def dead $scc
-  ; GCN-NEXT:   renamable $vgpr3 = COPY killed renamable $sgpr14
-  ; GCN-NEXT:   renamable $vgpr8_vgpr9 = IMPLICIT_DEF
-  ; GCN-NEXT:   renamable $vgpr1_vgpr2 = IMPLICIT_DEF
-  ; GCN-NEXT:   renamable $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = IMPLICIT_DEF
+  ; GCN-NEXT:   renamable $vgpr15 = COPY killed renamable $sgpr14
+  ; GCN-NEXT:   renamable $vgpr9_vgpr10 = IMPLICIT_DEF
+  ; GCN-NEXT:   renamable $vgpr13_vgpr14 = IMPLICIT_DEF
+  ; GCN-NEXT:   renamable $vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7_vgpr8 = IMPLICIT_DEF
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petar-avramovic wrote:

copy is in $vgpr15, no overwrite

https://github.com/llvm/llvm-project/pull/89050