[Offload][SYCL] Refactor OffloadKind implementation (#135809)

Following are the changes:

1. Make OffloadKind enum values to be powers of two so we can use them
like a bitfield
2. Include OFK_SYCL enum value
3. Modify ActiveOffloadKinds support in clang-linker-wrapper to use
bitfields instead of a vector.

Thanks

---------

Signed-off-by: Arvind Sudarsanam <arvind.sudarsanam@intel.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/llvm/include/llvm/Object/OffloadBinary.h b/llvm/include/llvm/Object/OffloadBinary.h
index c02aec8..a3b78b8ec 100644
--- a/llvm/include/llvm/Object/OffloadBinary.h
+++ b/llvm/include/llvm/Object/OffloadBinary.h
@@ -32,10 +32,11 @@ namespace object {
 /// The producer of the associated offloading image.
 enum OffloadKind : uint16_t {
   OFK_None = 0,
-  OFK_OpenMP,
-  OFK_Cuda,
-  OFK_HIP,
-  OFK_LAST,
+  OFK_OpenMP = (1 << 0),
+  OFK_Cuda = (1 << 1),
+  OFK_HIP = (1 << 2),
+  OFK_SYCL = (1 << 3),
+  OFK_LAST = (1 << 4),
 };
 
 /// The type of contents the offloading image contains.