Index: llvm/lib/CodeGen/SplitKit.cpp
===================================================================
--- llvm/lib/CodeGen/SplitKit.cpp
+++ llvm/lib/CodeGen/SplitKit.cpp
@@ -596,6 +596,7 @@
 
   SlotIndex Def = buildSingleSubRegCopy(FromReg, ToReg, MBB, InsertBefore,
                                         BestIdx, DestLI, Late, SlotIndex());
+  auto FirstMI = LIS.getInstructionFromIndex(Def)->getIterator();
 
   // Greedy heuristic: Keep iterating keeping the best covering subreg index
   // each time.
@@ -629,6 +630,13 @@
     LanesLeft &= ~TRI.getSubRegIndexLaneMask(BestIdx);
   }
 
+  if (FirstMI->isBundledWithSucc()) {
+    finalizeBundle(MBB, FirstMI);
+    auto Bundle = std::prev(FirstMI);
+    assert(Bundle->isBundle());
+    LIS.ReplaceMachineInstrInMaps(*FirstMI, *Bundle);
+  }
+
   return Def;
 }
 
Index: llvm/lib/CodeGen/VirtRegMap.cpp
===================================================================
--- llvm/lib/CodeGen/VirtRegMap.cpp
+++ llvm/lib/CodeGen/VirtRegMap.cpp
@@ -400,18 +400,24 @@
 /// after processing the last in the bundle. Does not update LiveIntervals
 /// which we shouldn't need for this instruction anymore.
 void VirtRegRewriter::expandCopyBundle(MachineInstr &MI) const {
-  if (!MI.isCopy())
+  if (!MI.isCopy() && !MI.isKill())
     return;
 
   if (MI.isBundledWithPred() && !MI.isBundledWithSucc()) {
     SmallVector<MachineInstr *, 2> MIs({&MI});
 
-    // Only do this when the complete bundle is made out of COPYs.
+    // Only do this when the complete bundle is made out of COPYs and KILLs.
     MachineBasicBlock &MBB = *MI.getParent();
     for (MachineBasicBlock::reverse_instr_iterator I =
          std::next(MI.getReverseIterator()), E = MBB.instr_rend();
          I != E && I->isBundledWithSucc(); ++I) {
-      if (!I->isCopy())
+      if (I->isBundle()) {
+        I->eraseFromBundle();
+        if (Indexes)
+          Indexes->removeSingleMachineInstrFromMaps(*I);
+        break;
+      }
+      if (!I->isCopy() && !I->isKill())
         return;
       MIs.push_back(&*I);
     }
Index: llvm/test/CodeGen/AMDGPU/splitkit-copy-bundle.mir
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/AMDGPU/splitkit-copy-bundle.mir
@@ -0,0 +1,119 @@
+# RUN: llc -march=amdgcn -mcpu=gfx900 -run-pass=greedy -o - -verify-machineinstrs %s | FileCheck -check-prefixes=MIR,RA %s
+# RUN: llc -march=amdgcn -mcpu=gfx900 -run-pass=greedy,virtregrewriter,post-RA-sched -o - -verify-machineinstrs %s | FileCheck -check-prefixes=MIR,VR %s
+# RUN: llc -march=amdgcn -mcpu=gfx900 -start-before=greedy -o - -verify-machineinstrs %s | FileCheck -check-prefix=ASM %s
+
+---
+# MIR-LABEL: name: splitkit_copy_bundle
+
+# RA:         BUNDLE implicit-def %4, implicit %5 {
+# RA-NEXT:      undef %4.sub0_sub1_sub2_sub3_sub4_sub5_sub6_sub7_sub8_sub9_sub10_sub11_sub12_sub13_sub14_sub15:sgpr_1024 = COPY %5.sub0_sub1_sub2_sub3_sub4_sub5_sub6_sub7_sub8_sub9_sub10_sub11_sub12_sub13_sub14_sub15
+# RA-NEXT:      internal %4.sub12_sub13_sub14_sub15_sub16_sub17_sub18_sub19_sub20_sub21_sub22_sub23_sub24_sub25_sub26_sub27:sgpr_1024 = COPY %5.sub12_sub13_sub14_sub15_sub16_sub17_sub18_sub19_sub20_sub21_sub22_sub23_sub24_sub25_sub26_sub27
+# RA-NEXT:      internal %4.sub28_sub29:sgpr_1024 = COPY %5.sub28_sub29
+# RA-NEXT:    }
+
+# RA:         BUNDLE implicit-def %6, implicit %4 {
+# RA-NEXT:      undef %6.sub0_sub1_sub2_sub3_sub4_sub5_sub6_sub7_sub8_sub9_sub10_sub11_sub12_sub13_sub14_sub15:sgpr_1024 = COPY %4.sub0_sub1_sub2_sub3_sub4_sub5_sub6_sub7_sub8_sub9_sub10_sub11_sub12_sub13_sub14_sub15
+# RA-NEXT:      internal %6.sub12_sub13_sub14_sub15_sub16_sub17_sub18_sub19_sub20_sub21_sub22_sub23_sub24_sub25_sub26_sub27:sgpr_1024 = COPY %4.sub12_sub13_sub14_sub15_sub16_sub17_sub18_sub19_sub20_sub21_sub22_sub23_sub24_sub25_sub26_sub27
+# RA-NEXT:      internal %6.sub28_sub29:sgpr_1024 = COPY %4.sub28_sub29
+# RA-NEXT:    }
+
+# RA:         BUNDLE implicit-def %4, implicit %6 {
+# RA-NEXT:      undef %4.sub0_sub1_sub2_sub3_sub4_sub5_sub6_sub7_sub8_sub9_sub10_sub11_sub12_sub13_sub14_sub15:sgpr_1024 = COPY %6.sub0_sub1_sub2_sub3_sub4_sub5_sub6_sub7_sub8_sub9_sub10_sub11_sub12_sub13_sub14_sub15
+# RA-NEXT:      internal %4.sub12_sub13_sub14_sub15_sub16_sub17_sub18_sub19_sub20_sub21_sub22_sub23_sub24_sub25_sub26_sub27:sgpr_1024 = COPY %6.sub12_sub13_sub14_sub15_sub16_sub17_sub18_sub19_sub20_sub21_sub22_sub23_sub24_sub25_sub26_sub27
+# RA-NEXT:      internal %4.sub28_sub29:sgpr_1024 = COPY %6.sub28_sub29
+# RA-NEXT:    }
+
+
+
+# VR-NOT:     BUNDLE
+# VR:         renamable $sgpr80_sgpr81_sgpr82_sgpr83_sgpr84_sgpr85_sgpr86_sgpr87_sgpr88_sgpr89_sgpr90_sgpr91_sgpr92_sgpr93_sgpr94_sgpr95 = KILL undef renamable $sgpr80_sgpr81_sgpr82_sgpr83_sgpr84_sgpr85_sgpr86_sgpr87_sgpr88_sgpr89_sgpr90_sgpr91_sgpr92_sgpr93_sgpr94_sgpr95
+# VR-NEXT:    renamable $sgpr96_sgpr97 = KILL undef renamable $sgpr96_sgpr97
+
+# VR-NOT: BUNDLE
+
+# ASM-LABEL: {{^}}splitkit_copy_bundle:
+# ASM:      ; implicit-def: $sgpr34_sgpr35
+# ASM-NEXT: ; implicit-def: $sgpr98_sgpr99
+# ASM-NEXT: ; kill: def $sgpr80_sgpr81_sgpr82_sgpr83_sgpr84_sgpr85_sgpr86_sgpr87_sgpr88_sgpr89_sgpr90_sgpr91_sgpr92_sgpr93_sgpr94_sgpr95 killed $sgpr80_sgpr81_sgpr82_sgpr83_sgpr84_sgpr85_sgpr86_sgpr87_sgpr88_sgpr89_sgpr90_sgpr91_sgpr92_sgpr93_sgpr94_sgpr95
+# ASM-NEXT: ; kill: def $sgpr96_sgpr97 killed $sgpr96_sgpr97
+
+name:            splitkit_copy_bundle
+tracksRegLiveness: true
+machineFunctionInfo:
+  scratchRSrcReg:  '$sgpr0_sgpr1_sgpr2_sgpr3'
+  stackPtrOffsetReg: '$sgpr32'
+body:             |
+  bb.0:
+    %0:sreg_64 = IMPLICIT_DEF
+    %1:sreg_64 = IMPLICIT_DEF
+    undef %2.sub1:sgpr_1024 = S_MOV_B32 -1
+    %2.sub0:sgpr_1024 = S_MOV_B32 -1
+    undef %3.sub0:sgpr_1024 = S_MOV_B32 0
+
+  bb.1:
+    %2.sub2:sgpr_1024 = COPY %2.sub0
+    %2.sub3:sgpr_1024 = COPY %2.sub1
+    %2.sub4:sgpr_1024 = COPY %2.sub0
+    %2.sub5:sgpr_1024 = COPY %2.sub1
+    %2.sub6:sgpr_1024 = COPY %2.sub0
+    %2.sub7:sgpr_1024 = COPY %2.sub1
+    %2.sub8:sgpr_1024 = COPY %2.sub0
+    %2.sub9:sgpr_1024 = COPY %2.sub1
+    %2.sub10:sgpr_1024 = COPY %2.sub0
+    %2.sub11:sgpr_1024 = COPY %2.sub1
+    %2.sub12:sgpr_1024 = COPY %2.sub0
+    %2.sub13:sgpr_1024 = COPY %2.sub1
+    %2.sub14:sgpr_1024 = COPY %2.sub0
+    %2.sub15:sgpr_1024 = COPY %2.sub1
+    %2.sub16:sgpr_1024 = COPY %2.sub0
+    %2.sub17:sgpr_1024 = COPY %2.sub1
+    %2.sub18:sgpr_1024 = COPY %2.sub0
+    %2.sub19:sgpr_1024 = COPY %2.sub1
+    %2.sub20:sgpr_1024 = COPY %2.sub0
+    %2.sub21:sgpr_1024 = COPY %2.sub1
+    %2.sub22:sgpr_1024 = COPY %2.sub0
+    %2.sub23:sgpr_1024 = COPY %2.sub1
+    %2.sub24:sgpr_1024 = COPY %2.sub0
+    %2.sub25:sgpr_1024 = COPY %2.sub1
+    %2.sub26:sgpr_1024 = COPY %2.sub0
+    %2.sub27:sgpr_1024 = COPY %2.sub1
+    %2.sub28:sgpr_1024 = COPY %2.sub0
+    %2.sub29:sgpr_1024 = COPY %2.sub1
+    %3.sub1:sgpr_1024 = COPY %3.sub0
+    %3.sub2:sgpr_1024 = COPY %3.sub0
+    %3.sub3:sgpr_1024 = COPY %3.sub0
+    %3.sub4:sgpr_1024 = COPY %3.sub0
+    %3.sub5:sgpr_1024 = COPY %3.sub0
+    %3.sub6:sgpr_1024 = COPY %3.sub0
+    %3.sub7:sgpr_1024 = COPY %3.sub0
+    %3.sub8:sgpr_1024 = COPY %3.sub0
+    %3.sub9:sgpr_1024 = COPY %3.sub0
+    %3.sub10:sgpr_1024 = COPY %3.sub0
+    %3.sub11:sgpr_1024 = COPY %3.sub0
+    %3.sub12:sgpr_1024 = COPY %3.sub0
+    %3.sub13:sgpr_1024 = COPY %3.sub0
+    %3.sub14:sgpr_1024 = COPY %3.sub0
+    %3.sub15:sgpr_1024 = COPY %3.sub0
+    %3.sub16:sgpr_1024 = COPY %3.sub0
+    %3.sub17:sgpr_1024 = COPY %3.sub0
+    %3.sub18:sgpr_1024 = COPY %3.sub0
+    %3.sub19:sgpr_1024 = COPY %3.sub0
+    %3.sub20:sgpr_1024 = COPY %3.sub0
+    %3.sub21:sgpr_1024 = COPY %3.sub0
+    %3.sub22:sgpr_1024 = COPY %3.sub0
+    %3.sub23:sgpr_1024 = COPY %3.sub0
+    %3.sub24:sgpr_1024 = COPY %3.sub0
+    %3.sub25:sgpr_1024 = COPY %3.sub0
+    %3.sub26:sgpr_1024 = COPY %3.sub0
+    %3.sub27:sgpr_1024 = COPY %3.sub0
+    %3.sub28:sgpr_1024 = COPY %3.sub0
+    %3.sub29:sgpr_1024 = COPY %3.sub0
+    %3.sub30:sgpr_1024 = COPY %3.sub0
+    %3.sub31:sgpr_1024 = COPY %3.sub0
+
+  bb.2:
+    S_NOP 0, implicit %0, implicit %1, csr_amdgpu_highregs
+    S_CBRANCH_VCCNZ %bb.1, implicit undef $vcc
+    S_BRANCH %bb.2
+
+...