[clang-sycl-linker][offload] Set TheImageKind based on IsAOTCompileNeeded flag (#180269)

Previously, TheImageKind was set to IMG_None and relied on a runtime
heuristic to determine the correct image type. This commit sets it
explicitly to IMG_Object for AOT-compiled images and IMG_SPIRV for
SPIR-V images based on the IsAOTCompileNeeded flag.

Also it adds test for this change, which required minor changes in
OffloadBinary and OffloadDump.

1 files changed, 2 insertions, 0 deletions

diff --git a/llvm/tools/llvm-objdump/OffloadDump.cpp b/llvm/tools/llvm-objdump/OffloadDump.cpp
index a77537dd90ee..cd2727069c2e 100644
--- a/llvm/tools/llvm-objdump/OffloadDump.cpp
+++ b/llvm/tools/llvm-objdump/OffloadDump.cpp
@@ -36,6 +36,8 @@ static StringRef getImageName(const OffloadBinary &OB) {
     return "fatbinary";
   case IMG_PTX:
     return "ptx";
+  case IMG_SPIRV:
+    return "spir-v";
   default:
     return "<none>";
   }