[Comgr][SPIRV] add check for LLVMSPIRVLib.h in cmake (llvm#291)

Disable SPIRV support in Comgr if LLVMSPIRVLib.h is not detected

Co-authored-by: Siu Chi Chan <[email protected]>

Author: lamb-j

amd/comgr/CMakeLists.txt

@@ -1,5 +1,7 @@
 cmake_minimum_required(VERSION 3.13.4)
 
+include(CheckIncludeFileCXX)
+
 file(READ "VERSION.txt" comgr_ver_file)
 
 string(REGEX MATCH "#COMGR_VERSION_MAJOR\n([0-9]*)" _ ${comgr_ver_file})
@@ -167,17 +169,29 @@ set(AMD_COMGR_PRIVATE_COMPILE_DEFINITIONS ${LLVM_DEFINITIONS})
 set(AMD_COMGR_PUBLIC_LINKER_OPTIONS)
 set(AMD_COMGR_PRIVATE_LINKER_OPTIONS)
 
-option(COMGR_DISABLE_SPIRV "To disable SPIRV in Comgr" OFF)
-if(${COMGR_DISABLE_SPIRV})
-    list(APPEND AMD_COMGR_PRIVATE_COMPILE_DEFINITIONS "COMGR_DISABLE_SPIRV")
-endif()
-
 list(APPEND AMD_COMGR_PRIVATE_COMPILE_DEFINITIONS "AMD_COMGR_GIT_COMMIT=${AMD_COMGR_GIT_COMMIT}")
 list(APPEND AMD_COMGR_PRIVATE_COMPILE_DEFINITIONS "AMD_COMGR_GIT_BRANCH=${AMD_COMGR_GIT_BRANCH}")
 message("----COMGR_GIT_COMMIT: ${AMD_COMGR_GIT_COMMIT}")
 message("----COMGR_GIT_BRANCH: ${AMD_COMGR_GIT_BRANCH}")
 message("")
 
+option(COMGR_DISABLE_SPIRV "To disable SPIRV in Comgr" OFF)
+
+if (NOT COMGR_DISABLE_SPIRV)
+  CHECK_INCLUDE_FILE_CXX(LLVMSPIRVLib/LLVMSPIRVLib.h HAVE_LLVMSPIRVLIB_H)
+  if (NOT HAVE_LLVMSPIRVLIB_H)
+    set(COMGR_DISABLE_SPIRV ON)
+  endif()
+endif()
+
+if(${COMGR_DISABLE_SPIRV})
+    list(APPEND AMD_COMGR_PRIVATE_COMPILE_DEFINITIONS "COMGR_DISABLE_SPIRV")
+  message("-- Comgr SPIRV Disabled")
+else()
+  message("-- Comgr SPIRV Enabled")
+endif()
+
+
 if (UNIX)
   list(APPEND AMD_COMGR_PRIVATE_COMPILE_OPTIONS
     -fno-rtti -Wall -Wno-attributes -fms-extensions -fvisibility=hidden)
@@ -390,11 +404,9 @@ set(LLD_LIBS
   lldCommon)
 
 if (${COMGR_DISABLE_SPIRV})
-  message("-- Comgr SPIRV Disabled")
   set(SPIRV_DYNAMIC_LIB "")
   set(SPIRV_STATIC_LIB "")
 else()
-  message("-- Comgr SPIRV Enabled")
   set(SPIRV_DYNAMIC_LIB "LLVMSPIRVAMDLib")
   set(SPIRV_STATIC_LIB "SPIRVAMDLib")
 endif()