[UBSan] Wrap Location variants in anonymous union (#168866)

(Addresses the FIXME)
2026-03-01 06:25:12 +00:00 · 2026-03-01 06:25:12 +00:00 · d412b04a88
commit d412b04a88
parent 10b1b7857b
1 changed files with 5 additions and 4 deletions
--- a/compiler-rt/lib/ubsan/ubsan_diag.h
+++ b/compiler-rt/lib/ubsan/ubsan_diag.h
@ -37,10 +37,11 @@ public:

 private:
  LocationKind Kind;
-  // FIXME: In C++11, wrap these in an anonymous union.
-  SourceLocation SourceLoc;
-  MemoryLocation MemoryLoc;
-  const SymbolizedStack *SymbolizedLoc;  // Not owned.
+  union {
+    SourceLocation SourceLoc;
+    MemoryLocation MemoryLoc;
+    const SymbolizedStack *SymbolizedLoc; // Not owned.
+  };

 public:
  Location() : Kind(LK_Null) {}