Upgrade to llvm 10

Switching travis environment to Ubuntu 18.04 Bionic
Upgrade to C++14 standard

Signed-off-by: Alexey Sotkin <alexey.sotkin@intel.com>

.travis.yml

@@ -3,8 +3,8 @@ language: cpp
 os:
   - linux
 
-# Use Ubuntu 16.04 LTS (Xenial) as the Linux testing environment.
-dist: xenial
+# Use Ubuntu 18.04 LTS (Bionic) as the Linux testing environment.
+dist: bionic
 sudo: false
 
 git:
@@ -24,13 +24,14 @@ env:
 addons:
   apt:
     sources:
-      - sourceline: 'deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial main'
+      - sourceline: 'deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic main'
         key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
       - ubuntu-toolchain-r-test
     packages:
-      - llvm-9-tools
-      - llvm-9-dev
-      - libclang-9-dev
+      - llvm-10-tools
+      - llvm-10-dev
+      - libclang-10-dev
+      - lldb-10
 
 install:
   - wget https://github.com/KhronosGroup/SPIRV-LLVM-Translator/releases/download/dev-build/SPIRV-LLVM-Translator-dev-build-linux-Release.zip -O /tmp/SPIRV-LLVM-Translator-dev-build-linux-${BUILD_TYPE}.zip

CMakeLists.txt

@@ -20,7 +20,7 @@ if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
     add_definitions(-DUSE_PREBUILT_LLVM)
 
     if(NOT PREFERRED_LLVM_VERSION)
-        set(PREFERRED_LLVM_VERSION "9.0.0")
+        set(PREFERRED_LLVM_VERSION "10.0.0")
     endif(NOT PREFERRED_LLVM_VERSION)
     message(STATUS "Looking for LLVM version ${PREFERRED_LLVM_VERSION}")
     find_package(LLVM ${PREFERRED_LLVM_VERSION} REQUIRED)
@@ -32,7 +32,7 @@ if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
       ${CMAKE_MODULE_PATH}
       ${LLVM_CMAKE_DIR})
 
-    set(CMAKE_CXX_STANDARD 11)
+    set(CMAKE_CXX_STANDARD 14)
     set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
     option(LLVMSPIRV_INCLUDED_IN_LLVM

README.md

@@ -69,12 +69,12 @@ make all -j`nproc`
 
 ##### Preferred LLVM version
 
-By default, Common clang's cmake script is searching for LLVM 9.0.0. You can
+By default, Common clang's cmake script is searching for LLVM 10.0.0. You can
 override target version of LLVM by using `PREFERRED_LLVM_VERSION` cmake option:
 
 Example:
 ```
-cmake -DPREFERRED_LLVM_VERSION="9.0.0" ../opencl-clang
+cmake -DPREFERRED_LLVM_VERSION="10.0.0" ../opencl-clang
 ```
 
 ##### Custom LLVM installation