Update LLVM version from 15 to 16

Original commit:
KhronosGroup/SPIRV-LLVM-Translator@7aa1fd2

Author: svenvh

README.md

@@ -5,6 +5,8 @@ Intel LLVM-based projects:
 
 - [oneAPI DPC++ compiler](#oneapi-dpc-compiler)
 - [Late-outline OpenMP and OpenMP Offload](#late-outline-openmp-and-openmp-offload)
+sudo apt-get install llvm-16-dev llvm-16-tools clang-16 libclang-16-dev
+`-DLLVM_EXTERNAL_LIT="/usr/lib/llvm-16/build/utils/lit/lit.py"` is
 
 ## oneAPI DPC++ compiler
 

llvm-spirv/.github/workflows/check-code-style.yml

@@ -24,7 +24,7 @@ env:
   # We need compile command database in order to perform clang-tidy check. So,
   # in order to perform configure step we need to setup llvm-dev package. This
   # env variable used to specify desired version of it
-  LLVM_VERSION: 15
+  LLVM_VERSION: 16
 
 jobs:
   clang-format-and-tidy:

llvm-spirv/.github/workflows/check-in-tree-build.yml

@@ -32,7 +32,7 @@ on:
     - cron: 0 0 * * *
 
 env:
-  LLVM_VERSION: 15
+  LLVM_VERSION: 16
 
 jobs:
   build_and_test_linux:

llvm-spirv/.github/workflows/check-out-of-tree-build.yml

@@ -29,7 +29,7 @@ on:
     - cron: 0 0 * * *
 
 env:
-  LLVM_VERSION: 15
+  LLVM_VERSION: 16
 
 jobs:
   build_and_test:

llvm-spirv/.travis.yml

@@ -42,7 +42,7 @@ compiler:
 env:
   global:
     - MAKEFLAGS="-j2"
-    - LLVM_VERSION=15
+    - LLVM_VERSION=16
   matrix:
     - BUILD_TYPE=Release BUILD_EXTERNAL=1 SHARED_LIBS=ON  MAKE_TARGETS=""           MAKE_TEST_TARGET="test"
     - BUILD_TYPE=Debug   BUILD_EXTERNAL=1 SHARED_LIBS=ON  MAKE_TARGETS=""           MAKE_TEST_TARGET="test"

llvm-spirv/CMakeLists.txt

@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.13.4)
 
 if(NOT DEFINED BASE_LLVM_VERSION)
-  set (BASE_LLVM_VERSION 15.0.0)
+  set (BASE_LLVM_VERSION 16.0.0)
 endif(NOT DEFINED BASE_LLVM_VERSION)
 set(LLVM_SPIRV_VERSION ${BASE_LLVM_VERSION}.0)