Support LLVM 16, GCC 11 and MSVC 2022 17.6 (#164)

Author: dpaoliello

CMakeLists.txt

@@ -5,13 +5,14 @@ if (NOT DEFINED LLVM_VERSION_MAJOR)
   find_package(LLVM REQUIRED CONFIG)
   message(STATUS "Found LLVM ${LLVM_PACKAGE_VERSION}")
   message(STATUS "Using LLVMConfig.cmake in: ${LLVM_DIR}")
+  message(STATUS "LLVM_INCLUDE_DIRS: ${LLVM_INCLUDE_DIRS}")
   include_directories(${LLVM_INCLUDE_DIRS})
   add_definitions(${LLVM_DEFINITIONS})
 
   list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_DIR}")
   include(AddLLVM)
 
-  set (CMAKE_CXX_STANDARD 14)
+  set (CMAKE_CXX_STANDARD 17)
 endif()
 
 if(LLVM_VERSION_MAJOR LESS 8)

README.md

@@ -6,7 +6,7 @@ This LLVM C backend has been resurrected by Julia Computing with various improve
 Installation instructions
 =========================
 
-This version of the LLVM C backend works with LLVM 10.0, and has preliminary support for LLVM 11.0.
+This version of the LLVM C backend works with LLVM 10.0 and 16.0, other version of LLVM may work but are untested.
 
 Step 1: Installing LLVM
 =======================