[DebugInfo] Extend the InstrRef LDV to support DbgValues with many Ops

This patch builds on prior support patches to enable support for
variadic debug values in InstrRefLDV, allowing DBG_VALUE_LISTs to
have their ranges extended.

Differential Revision: https://reviews.llvm.org/D128212

1 files changed, 0 insertions, 13 deletions

diff --git a/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp b/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp
index 9aea790..27a5a30 100644
--- a/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp
+++ b/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp
@@ -1341,19 +1341,6 @@ bool InstrRefBasedLDV::transferDebugValue(const MachineInstr &MI) {
   if (Scope == nullptr)
     return true; // handled it; by doing nothing
 
-  // For now, ignore DBG_VALUE_LISTs when extending ranges. Allow it to
-  // contribute to locations in this block, but don't propagate further.
-  // Interpret it like a DBG_VALUE $noreg.
-  if (MI.isDebugValueList()) {
-    SmallVector<DbgOpID> EmptyDebugOps;
-    SmallVector<ResolvedDbgOp> EmptyResolvedDebugOps;
-    if (VTracker)
-      VTracker->defVar(MI, Properties, EmptyDebugOps);
-    if (TTracker)
-      TTracker->redefVar(MI, Properties, EmptyResolvedDebugOps);
-    return true;
-  }
-
   // MLocTracker needs to know that this register is read, even if it's only
   // read by a debug inst.
   for (const MachineOperand &MO : MI.debug_operands())