Upgrade LLVM to v15.

Author: mcserep

.github/scripts/ubuntu-20.04/setup_build.sh

@@ -1,6 +1,13 @@
 #!/bin/bash
 
+# Add official LLVM repositories
+wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+echo "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-15 main" | sudo tee /etc/apt/sources.list.d/llvm.list
+echo "deb-src http://apt.llvm.org/focal/ llvm-toolchain-focal-15 main" | sudo tee -a /etc/apt/sources.list.d/llvm.list
+sudo apt-get update
+
 # Install required packages for CodeCompass build
-sudo apt-get install -y git cmake make g++ libboost-all-dev llvm-11-dev clang-11 \
-  libclang-11-dev odb libodb-dev default-jdk libssl-dev \
+sudo apt-get install -y git cmake make g++ libboost-all-dev \
+  llvm-15-dev clang-15 libclang-15-dev odb \
+  libodb-dev default-jdk libssl-dev \
   libgraphviz-dev libmagic-dev libgit2-dev ctags doxygen libgtest-dev npm libldap2-dev

.github/scripts/ubuntu-22.04/setup_build.sh

@@ -2,7 +2,7 @@
 
 # Install required packages for CodeCompass build
 sudo apt install git cmake make g++ libboost-all-dev \
-  llvm-11-dev clang-11 libclang-11-dev \
+  llvm-15-dev clang-15 libclang-15-dev \
   gcc-11-plugin-dev thrift-compiler libthrift-dev \
   default-jdk libssl-dev libgraphviz-dev libmagic-dev libgit2-dev exuberant-ctags doxygen \
   libldap2-dev libgtest-dev

.github/workflows/ci.yml

@@ -137,8 +137,8 @@ jobs:
           -DCMAKE_INSTALL_PREFIX=$HOME/${{ matrix.os }}/${{ matrix.db }}/cc-install
           -DDATABASE=$DB_TYPE
           -DCMAKE_BUILD_TYPE=$BUILD_TYPE
-          -DLLVM_DIR=/usr/lib/llvm-11/cmake
-          -DClang_DIR=/usr/lib/cmake/clang-11
+          -DLLVM_DIR=/usr/lib/llvm-15/cmake
+          -DClang_DIR=/usr/lib/cmake/clang-15
           -DTEST_DB=$DB_CONNSTRING
 
       - name: Build

.gitlab/build-deps.sh

@@ -250,9 +250,9 @@ export PATH=$DEPS_INSTALL_RUNTIME_DIR/python-install/bin:$PATH
 
 if [ ! -f $DEPS_INSTALL_RUNTIME_DIR/llvm-install/bin/clang ]; then
   cd $PACKAGES_DIR
-  wget --no-verbose --no-clobber https://github.com/llvm/llvm-project/archive/llvmorg-11.1.0.tar.gz
-  tar -xf llvmorg-11.1.0.tar.gz
-  mv llvm-project-llvmorg-11.1.0 llvm-project
+  wget --no-verbose --no-clobber https://github.com/llvm/llvm-project/archive/llvmorg-15.0.7.tar.gz
+  tar -xf llvmorg-15.0.7.tar.gz
+  mv llvm-project-llvmorg-15.0.7 llvm-project
   mkdir llvm-project/build
   cd llvm-project/build
 
@@ -264,7 +264,7 @@ if [ ! -f $DEPS_INSTALL_RUNTIME_DIR/llvm-install/bin/clang ]; then
     -DLLVM_ENABLE_RTTI=ON
 
   make install --quiet --jobs $(nproc)
-  rm -f $PACKAGES_DIR/llvmorg-11.1.0.tar.gz
+  rm -f $PACKAGES_DIR/llvmorg-15.0.7.tar.gz
 else
   echo "Found LLVM/Clang in cache."
 fi

doc/deps.md

@@ -15,7 +15,7 @@ be installed from the official repository of the given Linux distribution.
   is required. (Alternatively, you can compile with Clang.)
 - **`gcc-X`, `gcc-X-plugin-dev`**: For building ODB.
 - **`libboost-all-dev`**: Boost can be used during the development.
-- **`llvm-11-dev`**, **`clang-11`**, **`libclang-11-dev`**: C++ parser uses
+- **`llvm-15-dev`**, **`clang-15`**, **`libclang-15-dev`**: C++ parser uses
   LLVM/Clang for parsing the source code.
 - **`odb`**, **`libodb-dev`**: For persistence ODB can be used which is an
   Object Relation Mapping (ORM) system.  
@@ -52,9 +52,18 @@ known issues.
 
 #### Ubuntu 20.04 ("Focal Fossa") LTS
 
+The standard Ubuntu Focal package repository contains only LLCM/Clang version 12,
+which is not sufficient for CodeCompass, as at least version 15 is required.
+Therefore LLVM and Clang should be installed from the official LLVM repositories:
+
 ```bash
+wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+echo "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-15 main" | sudo tee /etc/apt/sources.list.d/llvm.list
+echo "deb-src http://apt.llvm.org/focal/ llvm-toolchain-focal-15 main" | sudo -a tee /etc/apt/sources.list.d/llvm.list
+sudo apt-get update
+
 sudo apt install git cmake make g++ libboost-all-dev \
-  llvm-11-dev clang-11 libclang-11-dev \
+  llvm-15-dev clang-15 libclang-15-dev \
   odb libodb-dev \
   default-jdk libssl-dev libgraphviz-dev libmagic-dev libgit2-dev ctags doxygen \
   libldap2-dev libgtest-dev
@@ -64,7 +73,7 @@ sudo apt install git cmake make g++ libboost-all-dev \
 
 ```bash
 sudo apt install git cmake make g++ libboost-all-dev \
-  llvm-11-dev clang-11 libclang-11-dev \
+  llvm-15-dev clang-15 libclang-15-dev \
   gcc-11-plugin-dev thrift-compiler libthrift-dev \
   default-jdk libssl-dev libgraphviz-dev libmagic-dev libgit2-dev exuberant-ctags doxygen \
   libldap2-dev libgtest-dev
@@ -269,8 +278,8 @@ cmake .. \
   -DCMAKE_INSTALL_PREFIX=<CodeCompass_install_dir> \
   -DDATABASE=<database_type> \
   -DCMAKE_BUILD_TYPE=<build_type> \
-  -DLLVM_DIR=/usr/lib/llvm-11/cmake \
-  -DClang_DIR=/usr/lib/cmake/clang-11
+  -DLLVM_DIR=/usr/lib/llvm-15/cmake \
+  -DClang_DIR=/usr/lib/cmake/clang-15
 
 # To specify linker for building CodeCompass use
 #   -DCODECOMPASS_LINKER=<path_to_linker>

docker/dev/Dockerfile

@@ -26,7 +26,7 @@ RUN set -x && apt-get update -qq \
   libmagic-dev \
   libsqlite3-dev \
   libssl-dev \
-  llvm-11 clang-11 llvm-11-dev libclang-11-dev \
+  llvm-15 clang-15 llvm-15-dev libclang-15-dev \
   thrift-compiler libthrift-dev \
   postgresql-server-dev-14 \
   postgresql-14 && \
@@ -70,7 +70,7 @@ ENV DATABASE=sqlite \
     TEST_WORKSPACE=/CodeCompass/test_workspace \
     TEST_DB="sqlite:database=$TEST_WORKSPACE/cc_test.sqlite" \
     WITH_AUTH="plain;ldap" \
-    LLVM_DIR=/usr/lib/llvm-11/cmake \
-    Clang_DIR=/usr/lib/cmake/clang-11
+    LLVM_DIR=/usr/lib/llvm-15/cmake \
+    Clang_DIR=/usr/lib/cmake/clang-15
 
 ENV PATH="$INSTALL_DIR/bin:$PATH"

docker/runtime/Dockerfile

@@ -58,7 +58,7 @@ RUN set -x && apt-get update -qq && \
     apt-get install -qq --yes --no-install-recommends \
     curl ca-certificates gnupg \
     wget \
-    llvm-11 \
+    llvm-15 \
     libboost-filesystem-dev libboost-log-dev libboost-program-options-dev \
     default-jre \
     libgit2-dev \

docker/web/Dockerfile

@@ -20,7 +20,7 @@ COPY docker/dev/install_odb.sh /
 
 RUN set -x && apt-get update -qq \
   && apt-get install -qqy --no-install-recommends \
-    llvm-11 \
+    llvm-15 \
     libboost-filesystem-dev libboost-log-dev libboost-program-options-dev \
     libsqlite3-dev \
     postgresql-server-dev-14 \

plugins/cpp/parser/src/clangastvisitor.h

@@ -1726,7 +1726,7 @@ class ClangASTVisitor : public clang::RecursiveASTVisitor<ClangASTVisitor>
       clang::DynTypedNodeList parents
         = _astContext.getParents(*expr_);
 
-      const clang::ast_type_traits::DynTypedNode& parent = parents[0];
+      const clang::DynTypedNode& parent = parents[0];
 
       if (const clang::BinaryOperator* op = parent.get<clang::BinaryOperator>())
       {

plugins/cpp/parser/src/ppincludecallback.cpp

@@ -61,7 +61,7 @@ void PPIncludeCallback::InclusionDirective(
   clang::StringRef fileName_,
   bool,
   clang::CharSourceRange filenameRange_,
-  const clang::FileEntry*,
+  clang::Optional<clang::FileEntryRef>,
   clang::StringRef searchPath_,
   clang::StringRef,
   const clang::Module*,