[llvm] [DebugInfo] Merge partially matching chains of textual inclusions (PR #125780)

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``````````bash
git-clang-format --diff 0572580dd040a81dc69b798e202550d51d17204a 44309240bca1c5817389210f9894994db3765c8b --extensions cpp -- llvm/lib/IR/DebugInfoMetadata.cpp llvm/unittests/IR/MetadataTest.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/IR/DebugInfoMetadata.cpp b/llvm/lib/IR/DebugInfoMetadata.cpp
index 1514455c60..28590d3d43 100644
--- a/llvm/lib/IR/DebugInfoMetadata.cpp
+++ b/llvm/lib/IR/DebugInfoMetadata.cpp
@@ -121,12 +121,16 @@ DILocation *DILocation::getMergedLocations(ArrayRef<DILocation *> Locs) {
 /// Merge two locations that may be nested as textual inclusions,
 /// e.g. via inlinedAt or nested LexicalBlocks.
 ///
-/// \param GetLocationKey   Function to determine whether locations/scopes are considered matching.
-/// \param ShouldStop       Function that determines if include chain of a location has ended.
+/// \param GetLocationKey   Function to determine whether locations/scopes are
+/// considered matching.
+/// \param ShouldStop       Function that determines if include chain of a
+/// location has ended.
 /// \param NextLoc          Should return next location/object in include chain.
-/// \param MergeLocPair     Function to merge two possibly matching locations from
+/// \param MergeLocPair     Function to merge two possibly matching locations
+/// from
 ///                         include chain.
-/// \param DefaultLocation  Function that returns location of the first matching nested object.
+/// \param DefaultLocation  Function that returns location of the first matching
+/// nested object.
 /// \param LocA             First incoming location.
 /// \param LocA             Second incoming location.
 template <typename LocationKey, typename GetLocationKeyFn,
@@ -374,12 +378,9 @@ DILocation *DILocation::getMergedLocation(DILocation *LocA, DILocation *LocB) {
     };
 
     return MergeNestedLocations<NestedLexicalBlocksMatchKey>(
-        GetLocOrScopeMatchKey,
-        [](MDNode *L) -> bool { return L; },
-        NextScopeWithDifferentFile,
-        MergeTextualInclusions,
-        [](MDNode *N) { return nullptr; },
-        L1, L2);
+        GetLocOrScopeMatchKey, [](MDNode *L) -> bool { return L; },
+        NextScopeWithDifferentFile, MergeTextualInclusions,
+        [](MDNode *N) { return nullptr; }, L1, L2);
   };
 
   // When traversing inlinedAt chain, we consider locations within the same
@@ -395,12 +396,10 @@ DILocation *DILocation::getMergedLocation(DILocation *LocA, DILocation *LocB) {
     return L->getInlinedAt();
   };
   return MergeNestedLocations<InlinedAtLookupKey>(
-      GetInlinedAtKey,
-      [](MDNode *N) { return N; },
-      NextInlinedAt,
+      GetInlinedAtKey, [](MDNode *N) { return N; }, NextInlinedAt,
       MergeInlinedLocations,
-      [GetInlinedAtKey](MDNode *N) { return GetInlinedAtKey(N).second; },
-      LocA, LocB);
+      [GetInlinedAtKey](MDNode *N) { return GetInlinedAtKey(N).second; }, LocA,
+      LocB);
 }
 
 std::optional<unsigned>

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https://github.com/llvm/llvm-project/pull/125780