llvm: fix build with LLVM11

Ensure that we can build with both dunfell (LLVM10) and current master
(LLVM11) of meta-clang. Look for LLVMVERSION set by meta-clang and
include relevant patches based on the version.

There's no official release for SPIRV-LLVM-Translator yet for LLVM11 so
pick the latest.

Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>

dynamic-layers/clang-layer/recipes-devtools/clang/files/llvm11-skip-building-tests.patch

@@ -0,0 +1,51 @@
+From d362652617c5e840089273df0c6623a9745c92a2 Mon Sep 17 00:00:00 2001
+From: Naveen Saini <naveen.kumar.saini@intel.com>
+Date: Wed, 21 Aug 2019 14:35:31 +0800
+Subject: [PATCH] llvm-spirv: skip building tests
+
+Some of these need clang to be built and since we're building this in-tree,
+that leads to problems when compiling libcxx, compiler-rt which aren't built
+in-tree.
+
+Instead of using SPIRV_SKIP_CLANG_BUILD to skip clang build and adding this to
+all components, disable the building of tests altogether.
+
+Upstream-Status: Inappropriate
+
+Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
+Signed-off-by: Naveen Saini <naveen.kumar.saini@intel.com>
+---
+ CMakeLists.txt | 10 ----------
+ 1 file changed, 10 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index ecebb4cb..578ca602 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -25,13 +25,6 @@ if(LLVM_SPIRV_BUILD_EXTERNAL)
+   set(CMAKE_CXX_STANDARD 14)
+   set(CMAKE_CXX_STANDARD_REQUIRED ON)
+ 
+-  if(LLVM_SPIRV_INCLUDE_TESTS)
+-    set(LLVM_TEST_COMPONENTS
+-      llvm-as
+-      llvm-dis
+-    )
+-  endif(LLVM_SPIRV_INCLUDE_TESTS)
+-
+   find_package(LLVM ${BASE_LLVM_VERSION} REQUIRED
+     COMPONENTS
+       Analysis
+@@ -62,9 +55,6 @@ set(LLVM_SPIRV_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/include)
+ 
+ add_subdirectory(lib/SPIRV)
+ add_subdirectory(tools/llvm-spirv)
+-if(LLVM_SPIRV_INCLUDE_TESTS)
+-  add_subdirectory(test)
+-endif(LLVM_SPIRV_INCLUDE_TESTS)
+ 
+ install(
+   FILES
+-- 
+2.26.2
+

dynamic-layers/clang-layer/recipes-devtools/clang/llvm-project-source.bbappend

@@ -1,11 +1,27 @@
 FILESEXTRAPATHS_prepend_intel-x86-common := "${THISDIR}/files:"
 
+SPIRV_BRANCH = "${@bb.utils.contains('LLVMVERSION', '10.0.1', 'llvm_release_100', 'llvm_release_110', d)}"
+
+SPIRV10_SRCREV = "4d43f68a30a510b4e7607351caab3df8e7426a6b"
+SPIRV11_SRCREV = "61a10b27604bc4a9f6840f8fad82b779e708a279"
+
+SPIRV_SRCREV = "${@bb.utils.contains('LLVMVERSION', '10.0.1', '${SPIRV10_SRCREV}', '${SPIRV11_SRCREV}', d)}"
+
+SRC_URI_LLVM10 = " \
+                   file://llvm10-skip-building-tests.patch;patchdir=llvm/projects/llvm-spirv \
+                   file://fix-shared-libs.patch;patchdir=llvm/projects/llvm-spirv \
+                   file://BasicBlockUtils-Add-metadata-fixing-in-SplitBlockPre.patch;patchdir=llvm \
+                   file://IndVarSimplify-Do-not-use-SCEV-expander-for-IVCount-.patch;patchdir=llvm \
+                   "
+
+SRC_URI_LLVM11 = " \
+                   file://llvm11-skip-building-tests.patch;patchdir=llvm/projects/llvm-spirv \
+                   "
+
 SRC_URI_append_intel-x86-common = " \
-                                    git://github.com/KhronosGroup/SPIRV-LLVM-Translator.git;protocol=https;branch=llvm_release_100;destsuffix=git/llvm/projects/llvm-spirv;name=spirv \
-                                    file://llvm10-skip-building-tests.patch;patchdir=llvm/projects/llvm-spirv \
-                                    file://fix-shared-libs.patch;patchdir=llvm/projects/llvm-spirv \
-                                    file://BasicBlockUtils-Add-metadata-fixing-in-SplitBlockPre.patch;patchdir=llvm \
-                                    file://IndVarSimplify-Do-not-use-SCEV-expander-for-IVCount-.patch;patchdir=llvm \
+                                    git://github.com/KhronosGroup/SPIRV-LLVM-Translator.git;protocol=https;branch=${SPIRV_BRANCH};destsuffix=git/llvm/projects/llvm-spirv;name=spirv \
                                     "
 
-SRCREV_spirv = "4d43f68a30a510b4e7607351caab3df8e7426a6b"
+SRC_URI_append_intel-x86-common = "${@bb.utils.contains('LLVMVERSION', '10.0.1', '${SRC_URI_LLVM10}', '${SRC_URI_LLVM11}', d)}"
+
+SRCREV_spirv = "${SPIRV_SRCREV}"