diff --git a/llvm/include/llvm/Support/SpecialCaseList.h b/llvm/include/llvm/Support/SpecialCaseList.h
index cb8e568de02e0..3e7592f153c25 100644
--- a/llvm/include/llvm/Support/SpecialCaseList.h
+++ b/llvm/include/llvm/Support/SpecialCaseList.h
@@ -166,10 +166,10 @@ class SpecialCaseList {
 
     std::vector<GlobMatcher::Glob> Globs;
 
-    RadixTree<iterator_range<StringRef::const_iterator>,
-              RadixTree<iterator_range<StringRef::const_reverse_iterator>,
+    RadixTree<iterator_range<StringRef::const_reverse_iterator>,
+              RadixTree<iterator_range<StringRef::const_iterator>,
                         SmallVector<const GlobMatcher::Glob *, 1>>>
-        PrefixSuffixToGlob;
+        SuffixPrefixToGlob;
 
     RadixTree<iterator_range<StringRef::const_iterator>,
               SmallVector<const GlobMatcher::Glob *, 1>>
diff --git a/llvm/lib/Support/SpecialCaseList.cpp b/llvm/lib/Support/SpecialCaseList.cpp
index 33261695cd3e8..f9c2af01ca591 100644
--- a/llvm/lib/Support/SpecialCaseList.cpp
+++ b/llvm/lib/Support/SpecialCaseList.cpp
@@ -107,8 +107,8 @@ void SpecialCaseList::GlobMatcher::preprocess(bool BySize) {
       }
     }
 
-    auto &SToGlob = PrefixSuffixToGlob.emplace(Prefix).first->second;
-    auto &V = SToGlob.emplace(reverse(Suffix)).first->second;
+    auto &PToGlob = SuffixPrefixToGlob.emplace(reverse(Suffix)).first->second;
+    auto &V = PToGlob.emplace(Prefix).first->second;
     V.emplace_back(&G);
   }
 }
@@ -116,9 +116,10 @@ void SpecialCaseList::GlobMatcher::preprocess(bool BySize) {
 void SpecialCaseList::GlobMatcher::match(
     StringRef Query,
     llvm::function_ref<void(StringRef Rule, unsigned LineNo)> Cb) const {
-  if (!PrefixSuffixToGlob.empty()) {
-    for (const auto &[_, SToGlob] : PrefixSuffixToGlob.find_prefixes(Query)) {
-      for (const auto &[_, V] : SToGlob.find_prefixes(reverse(Query))) {
+  if (!SuffixPrefixToGlob.empty()) {
+    for (const auto &[_, PToGlob] :
+         SuffixPrefixToGlob.find_prefixes(reverse(Query))) {
+      for (const auto &[_, V] : PToGlob.find_prefixes(Query)) {
         for (const auto *G : V) {
           if (G->Pattern.match(Query)) {
             Cb(G->Name, G->LineNo);