[libclc] [libclc] Set OpenCL C version for each target (PR #135733)

[Fraser Cormack via cfe-commits]

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@@ -387,21 +387,39 @@ foreach( t ${LIBCLC_TARGETS_TO_BUILD} )
 
     message( STATUS "  device: ${d} ( ${${d}_aliases} )" )
 
-    if ( ARCH STREQUAL spirv OR ARCH STREQUAL spirv64 )
+    # 1.2 is Clang's default OpenCL C language standard to compile for.
+    set( opencl_lang_std "CL1.2" )
+
+    if ( ${DARCH} STREQUAL spirv )
+      set( opencl_lang_std "CL3.0" )
       set( build_flags -O0 -finline-hint-functions -DCLC_SPIRV )
       set( opt_flags )
       set( spvflags --spirv-max-version=1.1 )
       set( MACRO_ARCH SPIRV32 )
       if( ARCH STREQUAL spirv64 )
         set( MACRO_ARCH SPIRV64 )
       endif()
-    elseif( ARCH STREQUAL clspv OR ARCH STREQUAL clspv64 )
+    elseif( ${DARCH} STREQUAL clspv )
+      # Refer to https://github.com/google/clspv for OpenCL version.
+      set( opencl_lang_std "CL3.0" )
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frasercrmck wrote:

Does this look okay, @rjodinchr?

https://github.com/llvm/llvm-project/pull/135733