DI: Set DILexicalBlock columns >= 65536 to 0/unknown

[oota-llvm.git] / include / llvm / IR / DebugInfoMetadata.h

diff --git a/include/llvm/IR/DebugInfoMetadata.h b/include/llvm/IR/DebugInfoMetadata.h
index eeacbdbf343a4427d145291d2f04ce24eb0b2511..6fba3b59396001fe93afccb66792095ff8c8c8a6 100644 (file)
--- a/include/llvm/IR/DebugInfoMetadata.h
+++ b/include/llvm/IR/DebugInfoMetadata.h
@@ -1430,12 +1430,14 @@ class DILexicalBlock : public DILexicalBlockBase {
   friend class MDNode;
 
   unsigned Line;
-  unsigned Column;
+  uint16_t Column;
 
   DILexicalBlock(LLVMContext &C, StorageType Storage, unsigned Line,
                  unsigned Column, ArrayRef<Metadata *> Ops)
       : DILexicalBlockBase(C, DILexicalBlockKind, Storage, Ops), Line(Line),
-        Column(Column) {}
+        Column(Column) {
+    assert(Column < (1u << 16) && "Expected 16-bit column");
+  }
   ~DILexicalBlock() = default;
 
   static DILexicalBlock *getImpl(LLVMContext &Context, DILocalScope *Scope,