CMake changes

Author: aelovikov-intel

sycl-jit/CMakeLists.txt

@@ -19,7 +19,6 @@ if (NOT WIN32 AND NOT CYGWIN)
   endif(SYCL_JIT_ENABLE_WERROR)
 endif()
 
-add_subdirectory(jit-compiler-resource)
 add_subdirectory(jit-compiler)
 add_subdirectory(passes)
 

sycl-jit/jit-compiler-resource/CMakeLists.txt

@@ -1,3 +1,26 @@
+get_host_tool_path( clang CLANG clang_exe clang_target )
+
+set(SYCL_JIT_RESOURCE_CPP "${CMAKE_CURRENT_BINARY_DIR}/resource.cpp")
+# NOTE: has to have a name different from the "default" object target:
+set(SYCL_JIT_RESOURCE_OBJ "${CMAKE_CURRENT_BINARY_DIR}/resource.cpp.custom.o")
+
+add_custom_command(
+  OUTPUT ${SYCL_JIT_RESOURCE_CPP}
+  COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/utils/generate.py --toolchain-dir ${CMAKE_BINARY_DIR} --output ${SYCL_JIT_RESOURCE_CPP} --prefix /sycl-jit-toolchain/
+  DEPENDS
+  sycl-headers
+  # TODO: libdevice
+  ${CMAKE_CURRENT_SOURCE_DIR}/utils/generate.py
+)
+
+# We use C23/C++26's `#embed` to implement this resource creation, and "current"
+# CMAKE_CXX_COMPILER might not have support for it. As such, use freshly built
+# `clang++` instead.
+add_custom_command(
+  OUTPUT ${SYCL_JIT_RESOURCE_OBJ}
+  COMMAND ${clang_exe} ${SYCL_JIT_RESOURCE_CPP} -c -o ${SYCL_JIT_RESOURCE_OBJ} -O2 -Wno-c23-extensions -fPIC
+  DEPENDS ${SYCL_JIT_RESOURCE_CPP}
+)
 
 add_llvm_library(sycl-jit
    lib/translation/JITContext.cpp
@@ -11,6 +34,8 @@ add_llvm_library(sycl-jit
    lib/helper/ConfigHelper.cpp
    lib/helper/ErrorHelper.cpp
 
+   ${SYCL_JIT_RESOURCE_OBJ}
+
    SHARED
 
    DEPENDS
@@ -45,7 +70,6 @@ add_llvm_library(sycl-jit
    clangCodeGen
    clangTooling
    clangSerialization
-   sycl-jit-resource
 )
 
 if(WIN32)