Update clang and its llvm (#1086)

* Update clang and its llvm

This may be needed to build cleanly with GCC 13

* Tell clspv's CMakeLists.txt file where to find libclc

* Update to clang-13.0.1

DEPS

@@ -11,8 +11,8 @@ vars = {
   'swiftshader_git': 'https://swiftshader.googlesource.com',
   'martinus_git': 'https://github.com/martinus',
 
-  'clspv_llvm_revision': 'b70366c9c430e1eadd59d5a1dfbb9c4d84f83de5',
-  'clspv_revision': 'f99809bdab1710846633b4ec24f5448263e75da7',
+  'clspv_llvm_revision': '4a2ebd6661cf1c929c280e863e4299164800413e',
+  'clspv_revision': '05fe1edbafb8d98ce798e7d9feb4a219bea114ef',
   'cpplint_revision': 'fa12a0bbdafa15291276ddd2a2dcd2ac7a2ce4cb',
   'dxc_revision': '773b01272719e07ea369bc17f5ddfce248751c7a',
   'directx_headers_revision': '980971e835876dc0cde415e8f9bc646e64667bf7',

kokoro/linux-clang-debug/build.sh

@@ -17,5 +17,5 @@ set -e  # fail on error
 set -x  # display commands
 
 SCRIPT_DIR=`dirname "$BASH_SOURCE"`
-source $SCRIPT_DIR/../scripts/linux/build.sh DEBUG "clang-10.0.0" \
+source $SCRIPT_DIR/../scripts/linux/build.sh DEBUG "clang-13.0.1" \
     -DAMBER_ENABLE_SWIFTSHADER=TRUE

kokoro/linux-clang-release/build.sh

@@ -17,6 +17,6 @@ set -e  # fail on error
 set -x  # display commands
 
 SCRIPT_DIR=`dirname "$BASH_SOURCE"`
-source $SCRIPT_DIR/../scripts/linux/build.sh RELEASE "clang-10.0.0" \
+source $SCRIPT_DIR/../scripts/linux/build.sh RELEASE "clang-13.0.1" \
     -DAMBER_ENABLE_SWIFTSHADER=TRUE \
     -DAMBER_USE_DXC=TRUE

third_party/CMakeLists.txt

@@ -169,6 +169,7 @@ if (${AMBER_ENABLE_CLSPV})
 
   set(CLSPV_LLVM_SOURCE_DIR "${AMBER_CLSPV_LLVM_DIR}/llvm" CACHE STRING "")
   set(CLSPV_CLANG_SOURCE_DIR "${AMBER_CLSPV_LLVM_DIR}/clang" CACHE STRING "")
+  set(CLSPV_LIBCLC_SOURCE_DIR "${AMBER_CLSPV_LLVM_DIR}/libclc" CACHE STRING "")
   set(SPIRV_HEADERS_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/spirv-headers" CACHE STRING "")
   set(SPIRV_TOOLS_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/spirv-tools" CACHE STRING "")
   set(LINKER_SUPPORTS_COLOR_DIAGNOSTICS 0 CACHE INTERNAL 0 FORCE)