Backport a new patch D148435.

Author: alexander-penev

.github/workflows/ci.yml

@@ -119,7 +119,7 @@ jobs:
         cd llvm-project
         # Apply patches
         echo "Apply clang${{ matrix.clang-runtime }}-*.patch patches:"
-        [ -f ../patches/llvm/clang${{ matrix.clang-runtime }}-*.patch ] && ls -1 ../patches/llvm/clang${{ matrix.clang-runtime }}-*.patch && git apply ../patches/llvm/clang${{ matrix.clang-runtime }}-*.patch
+        compgen -G "../patches/llvm/clang${{ matrix.clang-runtime }}-*.patch" > /dev/null && find ../patches/llvm/clang${{ matrix.clang-runtime }}-*.patch -printf "%f\n" && git apply ../patches/llvm/clang${{ matrix.clang-runtime }}-*.patch
         # Build
         mkdir build
         cd build

patches/llvm/README.md

@@ -0,0 +1 @@
+LLVM/Clang patches

patches/llvm/clang16-D141215.patch renamed to patches/llvm/clang16-D141215-Value.patch

@@ -0,0 +1,33 @@
+diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
+index 12d602fed693..e73102544361 100644
+--- a/clang/lib/CodeGen/CodeGenModule.cpp
++++ b/clang/lib/CodeGen/CodeGenModule.cpp
+@@ -7202,7 +7202,6 @@ void CodeGenModule::moveLazyEmissionStates(CodeGenModule *NewBuilder) {
+          "Newly created module should not have manglings");
+   NewBuilder->Manglings = std::move(Manglings);
+
+-  assert(WeakRefReferences.empty() && "Not all WeakRefRefs have been applied");
+   NewBuilder->WeakRefReferences = std::move(WeakRefReferences);
+
+   NewBuilder->TBAA = std::move(TBAA);
+diff --git a/clang/test/Interpreter/execute-weak.cpp b/clang/test/Interpreter/execute-weak.cpp
+index 5b343512c545..66f2214ab03c 100644
+--- a/clang/test/Interpreter/execute-weak.cpp
++++ b/clang/test/Interpreter/execute-weak.cpp
+@@ -2,11 +2,16 @@
+ // RUN: clang-repl "int i = 10;" 'extern "C" int printf(const char*,...);' \
+ // RUN:            'auto r1 = printf("i = %d\n", i);' | FileCheck --check-prefix=CHECK-DRIVER %s
+ // CHECK-DRIVER: i = 10
++//
+ // UNSUPPORTED: system-aix, system-windows
+ // RUN: cat %s | clang-repl | FileCheck %s
++
+ extern "C" int printf(const char *, ...);
+ int __attribute__((weak)) bar() { return 42; }
+ auto r4 = printf("bar() = %d\n", bar());
+ // CHECK: bar() = 42
+
++int a = 12;
++static __typeof(a) b __attribute__((__weakref__("a")));
++int c = b;
+ %quit