[llvm-branch-commits] [clang] ed13d8c - Fix memory leak complicated non-type template arguments.

[Richard Smith via llvm-branch-commits]

Author: Richard Smith
Date: 2020-12-18T13:42:24-08:00
New Revision: ed13d8c66781b50ff007cb089c5905f9bb9e8af2

URL: https://github.com/llvm/llvm-project/commit/ed13d8c66781b50ff007cb089c5905f9bb9e8af2
DIFF: https://github.com/llvm/llvm-project/commit/ed13d8c66781b50ff007cb089c5905f9bb9e8af2.diff

LOG: Fix memory leak complicated non-type template arguments.

Added: 
    

Modified: 
    clang/include/clang/AST/ASTContext.h
    clang/lib/AST/TemplateBase.cpp

Removed: 
    


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diff  --git a/clang/include/clang/AST/ASTContext.h b/clang/include/clang/AST/ASTContext.h
index 0c5d82b3e9aa..a9bfdb4d5fa5 100644
--- a/clang/include/clang/AST/ASTContext.h
+++ b/clang/include/clang/AST/ASTContext.h
@@ -2818,8 +2818,8 @@ class ASTContext : public RefCountedBase<ASTContext> {
   /// for destruction.
   template <typename T> void addDestruction(T *Ptr) const {
     if (!std::is_trivially_destructible<T>::value) {
-      auto DestroyPtr = [](void *V) { static_cast<T *>(V)->~T(); };
-      AddDeallocation(DestroyPtr, Ptr);
+      auto DestroyPtr = [](void *V) { ((T*)V)->~T(); };
+      AddDeallocation(DestroyPtr, (void*)Ptr);
     }
   }
 

diff  --git a/clang/lib/AST/TemplateBase.cpp b/clang/lib/AST/TemplateBase.cpp
index 0029c90a0ab6..a746db315d85 100644
--- a/clang/lib/AST/TemplateBase.cpp
+++ b/clang/lib/AST/TemplateBase.cpp
@@ -137,6 +137,7 @@ TemplateArgument::TemplateArgument(const ASTContext &Ctx, QualType Type,
   else {
     Value.Kind = UncommonValue;
     Value.Value = new (Ctx) APValue(V);
+    Ctx.addDestruction(Value.Value);
     Value.Type = Type.getAsOpaquePtr();
   }
 }