[llvm] cc14eda - [ADT] Fix EnumStringsStorage struct/class mismatch (#206110)

[via llvm-commits]

Author: Alexis Engelke
Date: 2026-06-26T15:56:18Z
New Revision: cc14eda4cfc33a1f847d768c97471004b641d2ad

URL: https://github.com/llvm/llvm-project/commit/cc14eda4cfc33a1f847d768c97471004b641d2ad
DIFF: https://github.com/llvm/llvm-project/commit/cc14eda4cfc33a1f847d768c97471004b641d2ad.diff

LOG: [ADT] Fix EnumStringsStorage struct/class mismatch (#206110)

Avoid incompatible declarations, which are problematic with MSVC.

Added: 
    

Modified: 
    llvm/include/llvm/ADT/Enum.h

Removed: 
    


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diff  --git a/llvm/include/llvm/ADT/Enum.h b/llvm/include/llvm/ADT/Enum.h
index 212fb8a31f471..b4a6d1f8e7069 100644
--- a/llvm/include/llvm/ADT/Enum.h
+++ b/llvm/include/llvm/ADT/Enum.h
@@ -50,7 +50,8 @@ template <typename T, unsigned NumStrs = 1> struct EnumStringDef {
 };
 
 template <typename T, unsigned NumStrs = 1> class EnumString {
-  template <typename, unsigned, size_t, size_t> friend class EnumStringsStorage;
+  template <typename, unsigned, size_t, size_t>
+  friend struct EnumStringsStorage;
 
   uint16_t NameOff[NumStrs] = {}; ///< Name offsets relative to this pointer.
   uint8_t NameSize[NumStrs] = {}; ///< Name string lengths.