diff --git a/llvm/lib/CodeGen/MachineScheduler.cpp b/llvm/lib/CodeGen/MachineScheduler.cpp
--- a/llvm/lib/CodeGen/MachineScheduler.cpp
+++ b/llvm/lib/CodeGen/MachineScheduler.cpp
@@ -920,12 +920,10 @@
     MachineBasicBlock::iterator OrigPrevMI = P.second;
     if (&*RegionBegin == DbgValue)
       ++RegionBegin;
-    BB->splice(++OrigPrevMI, BB, DbgValue);
-    if (OrigPrevMI == std::prev(RegionEnd))
+    BB->splice(std::next(OrigPrevMI), BB, DbgValue);
+    if (RegionEnd != BB->end() && OrigPrevMI == &*RegionEnd)
       RegionEnd = DbgValue;
   }
-  DbgValues.clear();
-  FirstDbgValue = nullptr;
 }
 
 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
diff --git a/llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp b/llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp
--- a/llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp
+++ b/llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp
@@ -429,9 +429,12 @@
   RescheduleRegions[RegionIdx] = RegionsWithClusters[RegionIdx] ||
                                  (Stage + 1) != UnclusteredReschedule;
   RegionEnd = RegionBegin;
+  int SkippedDebugInstr = 0;
   for (MachineInstr *MI : Unsched) {
-    if (MI->isDebugInstr())
+    if (MI->isDebugInstr()) {
+      ++SkippedDebugInstr;
       continue;
+    }
 
     if (MI->getIterator() != RegionEnd) {
       BB->remove(MI);
@@ -459,10 +462,31 @@
     ++RegionEnd;
     LLVM_DEBUG(dbgs() << "Scheduling " << *MI);
   }
+
+  // After reverting schedule, debug instrs will now be at the end of the block
+  // and RegionEnd will point to the first debug instr. Increment RegionEnd
+  // pass debug instrs to the actual end of the scheduling region.
+  while (SkippedDebugInstr-- > 0)
+    ++RegionEnd;
+
+  // If Unsched.front() instruction is a debug instruction, this will actually
+  // shrink the region since we moved all debug instructions to the end of the
+  // block. Find the first instruction that is not a debug instruction.
   RegionBegin = Unsched.front()->getIterator();
-  Regions[RegionIdx] = std::make_pair(RegionBegin, RegionEnd);
+  if (RegionBegin->isDebugInstr()) {
+    for (MachineInstr *MI : Unsched) {
+      if (MI->isDebugInstr())
+        continue;
+      RegionBegin = MI->getIterator();
+      break;
+    }
+  }
 
+  // Then move the debug instructions back into their correct place and set
+  // RegionBegin and RegionEnd if needed.
   placeDebugValues();
+
+  Regions[RegionIdx] = std::make_pair(RegionBegin, RegionEnd);
 }
 
 GCNRegPressure GCNScheduleDAGMILive::getRealRegPressure() const {
diff --git a/llvm/test/CodeGen/AMDGPU/debug-value-scheduler.mir b/llvm/test/CodeGen/AMDGPU/debug-value-scheduler.mir
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/AMDGPU/debug-value-scheduler.mir
@@ -0,0 +1,301 @@
+# RUN: llc -march=amdgcn -mcpu=gfx908 -run-pass=machine-scheduler %s -o - -debug-only=machine-scheduler 2>&1 | FileCheck %s
+# REQUIRES: asserts
+
+# CHECK: All regions recorded, starting actual scheduling.
+# CHECK: ********** MI Scheduling **********
+# CHECK: test_same_num_instrs:%bb.2
+# CHECK-NEXT:   From: DBG_VALUE %17:vgpr_32, 0, 0
+# CHECK-NEXT:     To: S_ENDPGM 0, implicit %69:vgpr_32, implicit %70:vgpr_32
+# CHECK-NEXT:  RegionInstrs: 46
+# CHECK: Attempting to revert scheduling.
+# CHECK: ********** MI Scheduling **********
+# CHECK: test_same_num_instrs:%bb.2
+# CHECK-NEXT:   From: DBG_VALUE %17:vgpr_32, 0, 0
+# CHECK-NEXT:     To: S_ENDPGM 0, implicit %69:vgpr_32, implicit %70:vgpr_32
+# CHECK-NEXT:  RegionInstrs: 46
+# CHECK: Unclustered reschedule did not help.
+# CHECK: Attempting to revert scheduling.
+# CHECK: Retrying function scheduling with lowest recorded occupancy 3.
+# CHECK: ********** MI Scheduling **********
+# CHECK: test_same_num_instrs:%bb.2
+# CHECK-NEXT:   From: DBG_VALUE %17:vgpr_32, 0, 0
+# CHECK-NEXT:     To: S_ENDPGM 0, implicit %69:vgpr_32, implicit %70:vgpr_32
+# CHECK-NEXT:  RegionInstrs: 46
+# CHECK: Attempting to revert scheduling.
+
+---
+name:            test_same_num_instrs
+tracksRegLiveness: true
+frameInfo:
+  hasCalls:        true
+body:             |
+  bb.0:
+    successors: %bb.1
+
+    %0:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 0, implicit $exec, implicit $mode, implicit-def $m0
+
+  bb.1:
+    successors: %bb.2
+
+    DBG_VALUE %0:vgpr_32, 0, 0
+    %1:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 1, implicit $exec, implicit $mode, implicit-def $m0
+    %2:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 2, implicit $exec, implicit $mode, implicit-def $m0
+    %3:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 3, implicit $exec, implicit $mode, implicit-def $m0
+    %4:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 4, implicit $exec, implicit $mode, implicit-def $m0
+    %5:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 5, implicit $exec, implicit $mode, implicit-def $m0
+    %6:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 6, implicit $exec, implicit $mode, implicit-def $m0
+    %7:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 7, implicit $exec, implicit $mode, implicit-def $m0
+    %8:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 8, implicit $exec, implicit $mode, implicit-def $m0
+    %9:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 9, implicit $exec, implicit $mode, implicit-def $m0
+    %10:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 10, implicit $exec, implicit $mode, implicit-def $m0
+    %11:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 11, implicit $exec, implicit $mode, implicit-def $m0
+    %12:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 12, implicit $exec, implicit $mode, implicit-def $m0
+    %13:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 13, implicit $exec, implicit $mode, implicit-def $m0
+    %14:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 14, implicit $exec, implicit $mode, implicit-def $m0
+    %15:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 15, implicit $exec, implicit $mode, implicit-def $m0
+    %16:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 16, implicit $exec, implicit $mode, implicit-def $m0
+    %17:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 17, implicit $exec, implicit $mode, implicit-def $m0
+    %18:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 18, implicit $exec, implicit $mode, implicit-def $m0
+    %19:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 19, implicit $exec, implicit $mode, implicit-def $m0
+    %20:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 20, implicit $exec, implicit $mode, implicit-def $m0
+    %21:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 21, implicit $exec, implicit $mode, implicit-def $m0
+    %22:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 22, implicit $exec, implicit $mode, implicit-def $m0
+    %23:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 23, implicit $exec, implicit $mode, implicit-def $m0
+    %24:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 24, implicit $exec, implicit $mode, implicit-def $m0
+    %25:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 25, implicit $exec, implicit $mode, implicit-def $m0
+    %26:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 26, implicit $exec, implicit $mode, implicit-def $m0
+    %27:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 27, implicit $exec, implicit $mode, implicit-def $m0
+    %28:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 28, implicit $exec, implicit $mode, implicit-def $m0
+    %29:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 29, implicit $exec, implicit $mode, implicit-def $m0
+    %30:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 30, implicit $exec, implicit $mode, implicit-def $m0
+    %31:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 31, implicit $exec, implicit $mode, implicit-def $m0
+    %32:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 32, implicit $exec, implicit $mode, implicit-def $m0
+    %33:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 33, implicit $exec, implicit $mode, implicit-def $m0
+    %34:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 34, implicit $exec, implicit $mode, implicit-def $m0
+    %35:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 35, implicit $exec, implicit $mode, implicit-def $m0
+    %36:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 36, implicit $exec, implicit $mode, implicit-def $m0
+    %37:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 37, implicit $exec, implicit $mode, implicit-def $m0
+    %38:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 38, implicit $exec, implicit $mode, implicit-def $m0
+    %39:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 39, implicit $exec, implicit $mode, implicit-def $m0
+    %40:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 40, implicit $exec, implicit $mode, implicit-def $m0
+    %41:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 41, implicit $exec, implicit $mode, implicit-def $m0
+    %42:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 42, implicit $exec, implicit $mode, implicit-def $m0
+    %43:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 43, implicit $exec, implicit $mode, implicit-def $m0
+    %44:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 44, implicit $exec, implicit $mode, implicit-def $m0
+    %45:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 45, implicit $exec, implicit $mode, implicit-def $m0
+    %46:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 46, implicit $exec, implicit $mode, implicit-def $m0
+    %47:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 47, implicit $exec, implicit $mode, implicit-def $m0
+    %48:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 48, implicit $exec, implicit $mode, implicit-def $m0
+    %49:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 49, implicit $exec, implicit $mode, implicit-def $m0
+    %50:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 50, implicit $exec, implicit $mode, implicit-def $m0
+    %51:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 51, implicit $exec, implicit $mode, implicit-def $m0
+    %52:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 52, implicit $exec, implicit $mode, implicit-def $m0
+    %53:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 53, implicit $exec, implicit $mode, implicit-def $m0
+    %54:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 54, implicit $exec, implicit $mode, implicit-def $m0
+    %55:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 55, implicit $exec, implicit $mode, implicit-def $m0
+    %56:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 56, implicit $exec, implicit $mode, implicit-def $m0
+    %57:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 57, implicit $exec, implicit $mode, implicit-def $m0
+    %58:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 58, implicit $exec, implicit $mode, implicit-def $m0
+    %59:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 59, implicit $exec, implicit $mode, implicit-def $m0
+    %60:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 60, implicit $exec, implicit $mode, implicit-def $m0
+    %61:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 61, implicit $exec, implicit $mode, implicit-def $m0
+    %62:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 62, implicit $exec, implicit $mode, implicit-def $m0
+    %63:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 63, implicit $exec, implicit $mode, implicit-def $m0
+    %64:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 64, implicit $exec, implicit $mode, implicit-def $m0
+    %65:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 65, implicit $exec, implicit $mode, implicit-def $m0
+    %66:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 66, implicit $exec, implicit $mode, implicit-def $m0
+
+  bb.2:
+    DBG_VALUE %17:vgpr_32, 0, 0
+    DBG_VALUE %18:vgpr_32, 0, 0
+    DBG_VALUE %19:vgpr_32, 0, 0
+    DBG_VALUE %20:vgpr_32, 0, 0
+    DBG_VALUE %21:vgpr_32, 0, 0
+    DBG_VALUE %22:vgpr_32, 0, 0
+    DBG_VALUE %23:vgpr_32, 0, 0
+    DBG_VALUE %24:vgpr_32, 0, 0
+    S_NOP 0, implicit %0
+    S_NOP 0, implicit %1, implicit %2
+    S_NOP 0, implicit %3, implicit %4
+    S_NOP 0, implicit %5, implicit %6
+    S_NOP 0, implicit %7, implicit %8
+    S_NOP 0, implicit %9, implicit %10
+    S_NOP 0, implicit %11, implicit %12
+    S_NOP 0, implicit %13, implicit %14
+    S_NOP 0, implicit %15, implicit %16
+    S_NOP 0, implicit %17, implicit %18
+    S_NOP 0, implicit %19, implicit %20
+    S_NOP 0, implicit %21, implicit %22
+    S_NOP 0, implicit %23, implicit %24
+    S_NOP 0, implicit %25, implicit %26
+    S_NOP 0, implicit %27, implicit %28
+    S_NOP 0, implicit %29, implicit %30
+    S_NOP 0, implicit %31, implicit %32
+    S_NOP 0, implicit %33, implicit %34
+    S_NOP 0, implicit %35, implicit %36
+    S_NOP 0, implicit %37, implicit %38
+    S_NOP 0, implicit %39, implicit %40
+    S_NOP 0, implicit %41, implicit %42
+    S_NOP 0, implicit %43, implicit %44
+    S_NOP 0, implicit %45, implicit %46
+    S_NOP 0, implicit %47, implicit %48
+    S_NOP 0, implicit %49, implicit %50
+    S_NOP 0, implicit %51, implicit %52
+    S_NOP 0, implicit %53, implicit %54
+    S_NOP 0, implicit %55, implicit %56
+    S_NOP 0, implicit %57, implicit %58
+    S_NOP 0, implicit %59, implicit %60
+    S_NOP 0, implicit %61, implicit %62
+    S_NOP 0, implicit %63, implicit %64
+    S_NOP 0, implicit %65, implicit %66
+    %67:vreg_64 = IMPLICIT_DEF
+    %68:vgpr_32 = FLAT_LOAD_DWORD %67, 0, 0, implicit $exec, implicit $flat_scr :: (load (s32))
+    %69:vgpr_32 = V_ADD_F32_e64 0, killed %68, 0, 1, 0, 0, implicit $mode, implicit $exec
+    %70:vgpr_32 = FLAT_LOAD_DWORD %67, 4, 0, implicit $exec, implicit $flat_scr :: (load (s32))
+    S_ENDPGM 0, implicit %69, implicit %70
+...
+
+# CHECK-LABEL: name:            test_debug_value_same_position
+# CHECK:  bb.2:
+# CHECK-NEXT:    DBG_VALUE
+# CHECK-NEXT:    DBG_VALUE
+# CHECK-NEXT:    DBG_VALUE
+# CHECK-NEXT:    DBG_VALUE
+# CHECK-NEXT:    DBG_VALUE
+# CHECK-NEXT:    DBG_VALUE
+# CHECK-NEXT:    DBG_VALUE
+# CHECK-NEXT:    DBG_VALUE
+# CHECK-NEXT:    S_NOP 0
+
+---
+name:            test_debug_value_same_position
+tracksRegLiveness: true
+frameInfo:
+  hasCalls:        true
+body:             |
+  bb.0:
+    successors: %bb.1
+
+    %0:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 0, implicit $exec, implicit $mode, implicit-def $m0
+
+  bb.1:
+    successors: %bb.2
+
+    DBG_VALUE %0:vgpr_32, 0, 0
+    %1:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 1, implicit $exec, implicit $mode, implicit-def $m0
+    %2:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 2, implicit $exec, implicit $mode, implicit-def $m0
+    %3:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 3, implicit $exec, implicit $mode, implicit-def $m0
+    %4:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 4, implicit $exec, implicit $mode, implicit-def $m0
+    %5:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 5, implicit $exec, implicit $mode, implicit-def $m0
+    %6:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 6, implicit $exec, implicit $mode, implicit-def $m0
+    %7:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 7, implicit $exec, implicit $mode, implicit-def $m0
+    %8:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 8, implicit $exec, implicit $mode, implicit-def $m0
+    %9:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 9, implicit $exec, implicit $mode, implicit-def $m0
+    %10:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 10, implicit $exec, implicit $mode, implicit-def $m0
+    %11:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 11, implicit $exec, implicit $mode, implicit-def $m0
+    %12:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 12, implicit $exec, implicit $mode, implicit-def $m0
+    %13:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 13, implicit $exec, implicit $mode, implicit-def $m0
+    %14:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 14, implicit $exec, implicit $mode, implicit-def $m0
+    %15:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 15, implicit $exec, implicit $mode, implicit-def $m0
+    %16:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 16, implicit $exec, implicit $mode, implicit-def $m0
+    %17:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 17, implicit $exec, implicit $mode, implicit-def $m0
+    %18:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 18, implicit $exec, implicit $mode, implicit-def $m0
+    %19:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 19, implicit $exec, implicit $mode, implicit-def $m0
+    %20:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 20, implicit $exec, implicit $mode, implicit-def $m0
+    %21:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 21, implicit $exec, implicit $mode, implicit-def $m0
+    %22:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 22, implicit $exec, implicit $mode, implicit-def $m0
+    %23:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 23, implicit $exec, implicit $mode, implicit-def $m0
+    %24:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 24, implicit $exec, implicit $mode, implicit-def $m0
+    %25:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 25, implicit $exec, implicit $mode, implicit-def $m0
+    %26:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 26, implicit $exec, implicit $mode, implicit-def $m0
+    %27:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 27, implicit $exec, implicit $mode, implicit-def $m0
+    %28:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 28, implicit $exec, implicit $mode, implicit-def $m0
+    %29:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 29, implicit $exec, implicit $mode, implicit-def $m0
+    %30:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 30, implicit $exec, implicit $mode, implicit-def $m0
+    %31:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 31, implicit $exec, implicit $mode, implicit-def $m0
+    %32:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 32, implicit $exec, implicit $mode, implicit-def $m0
+    %33:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 33, implicit $exec, implicit $mode, implicit-def $m0
+    %34:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 34, implicit $exec, implicit $mode, implicit-def $m0
+    %35:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 35, implicit $exec, implicit $mode, implicit-def $m0
+    %36:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 36, implicit $exec, implicit $mode, implicit-def $m0
+    %37:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 37, implicit $exec, implicit $mode, implicit-def $m0
+    %38:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 38, implicit $exec, implicit $mode, implicit-def $m0
+    %39:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 39, implicit $exec, implicit $mode, implicit-def $m0
+    %40:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 40, implicit $exec, implicit $mode, implicit-def $m0
+    %41:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 41, implicit $exec, implicit $mode, implicit-def $m0
+    %42:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 42, implicit $exec, implicit $mode, implicit-def $m0
+    %43:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 43, implicit $exec, implicit $mode, implicit-def $m0
+    %44:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 44, implicit $exec, implicit $mode, implicit-def $m0
+    %45:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 45, implicit $exec, implicit $mode, implicit-def $m0
+    %46:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 46, implicit $exec, implicit $mode, implicit-def $m0
+    %47:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 47, implicit $exec, implicit $mode, implicit-def $m0
+    %48:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 48, implicit $exec, implicit $mode, implicit-def $m0
+    %49:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 49, implicit $exec, implicit $mode, implicit-def $m0
+    %50:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 50, implicit $exec, implicit $mode, implicit-def $m0
+    %51:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 51, implicit $exec, implicit $mode, implicit-def $m0
+    %52:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 52, implicit $exec, implicit $mode, implicit-def $m0
+    %53:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 53, implicit $exec, implicit $mode, implicit-def $m0
+    %54:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 54, implicit $exec, implicit $mode, implicit-def $m0
+    %55:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 55, implicit $exec, implicit $mode, implicit-def $m0
+    %56:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 56, implicit $exec, implicit $mode, implicit-def $m0
+    %57:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 57, implicit $exec, implicit $mode, implicit-def $m0
+    %58:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 58, implicit $exec, implicit $mode, implicit-def $m0
+    %59:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 59, implicit $exec, implicit $mode, implicit-def $m0
+    %60:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 60, implicit $exec, implicit $mode, implicit-def $m0
+    %61:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 61, implicit $exec, implicit $mode, implicit-def $m0
+    %62:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 62, implicit $exec, implicit $mode, implicit-def $m0
+    %63:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 63, implicit $exec, implicit $mode, implicit-def $m0
+    %64:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 64, implicit $exec, implicit $mode, implicit-def $m0
+    %65:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 65, implicit $exec, implicit $mode, implicit-def $m0
+    %66:vgpr_32 = nofpexcept V_CVT_I32_F64_e32 66, implicit $exec, implicit $mode, implicit-def $m0
+
+  bb.2:
+    DBG_VALUE %17:vgpr_32, 0, 0
+    DBG_VALUE %18:vgpr_32, 0, 0
+    DBG_VALUE %19:vgpr_32, 0, 0
+    DBG_VALUE %20:vgpr_32, 0, 0
+    DBG_VALUE %21:vgpr_32, 0, 0
+    DBG_VALUE %22:vgpr_32, 0, 0
+    DBG_VALUE %23:vgpr_32, 0, 0
+    DBG_VALUE %24:vgpr_32, 0, 0
+    S_NOP 0, implicit %0
+    S_NOP 0, implicit %1, implicit %2
+    S_NOP 0, implicit %3, implicit %4
+    S_NOP 0, implicit %5, implicit %6
+    S_NOP 0, implicit %7, implicit %8
+    S_NOP 0, implicit %9, implicit %10
+    S_NOP 0, implicit %11, implicit %12
+    S_NOP 0, implicit %13, implicit %14
+    S_NOP 0, implicit %15, implicit %16
+    S_NOP 0, implicit %17, implicit %18
+    S_NOP 0, implicit %19, implicit %20
+    S_NOP 0, implicit %21, implicit %22
+    S_NOP 0, implicit %23, implicit %24
+    S_NOP 0, implicit %25, implicit %26
+    S_NOP 0, implicit %27, implicit %28
+    S_NOP 0, implicit %29, implicit %30
+    S_NOP 0, implicit %31, implicit %32
+    S_NOP 0, implicit %33, implicit %34
+    S_NOP 0, implicit %35, implicit %36
+    S_NOP 0, implicit %37, implicit %38
+    S_NOP 0, implicit %39, implicit %40
+    S_NOP 0, implicit %41, implicit %42
+    S_NOP 0, implicit %43, implicit %44
+    S_NOP 0, implicit %45, implicit %46
+    S_NOP 0, implicit %47, implicit %48
+    S_NOP 0, implicit %49, implicit %50
+    S_NOP 0, implicit %51, implicit %52
+    S_NOP 0, implicit %53, implicit %54
+    S_NOP 0, implicit %55, implicit %56
+    S_NOP 0, implicit %57, implicit %58
+    S_NOP 0, implicit %59, implicit %60
+    S_NOP 0, implicit %61, implicit %62
+    S_NOP 0, implicit %63, implicit %64
+    S_NOP 0, implicit %65, implicit %66
+    %67:vreg_64 = IMPLICIT_DEF
+    %68:vgpr_32 = FLAT_LOAD_DWORD %67, 0, 0, implicit $exec, implicit $flat_scr :: (load (s32))
+    %69:vgpr_32 = V_ADD_F32_e64 0, killed %68, 0, 1, 0, 0, implicit $mode, implicit $exec
+    %70:vgpr_32 = FLAT_LOAD_DWORD %67, 4, 0, implicit $exec, implicit $flat_scr :: (load (s32))
+    S_ENDPGM 0, implicit %69, implicit %70
+...
+