[llvm] [RemoveDIs][NFC] Find DPValues using findDbgDeclares (PR #73500)

[Jeremy Morse via llvm-commits]

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@@ -44,29 +44,12 @@ using namespace llvm;
 using namespace llvm::at;
 using namespace llvm::dwarf;
 
-void llvm::findDbgDeclares(SmallVectorImpl<DbgDeclareInst *> &DbgUsers,
-                           Value *V) {
-  // This function is hot. Check whether the value has any metadata to avoid a
-  // DenseMap lookup.
-  if (!V->isUsedByMetadata())
-    return;
-  auto *L = LocalAsMetadata::getIfExists(V);
-  if (!L)
-    return;
-  auto *MDV = MetadataAsValue::getIfExists(V->getContext(), L);
-  if (!MDV)
-    return;
+template <typename IntrinsicT, bool AnyType,
+          DPValue::LocationType Type = DPValue::LocationType(-1)>
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jmorse wrote:

Non-edit: that is, casting -1 to DPValue::LocationType, an enumeration that doesn't have an enumerated element for -1, is likely undefined.

https://github.com/llvm/llvm-project/pull/73500