GPU: GPUd --> GPUdii Force Inline, Code did not break and also no performance penalty

[vikasssinghal]

There is a TODO: - Inline me, once forceinline is fixed by HIP.
After Changing GPUd --> GPUdii. Code did not break. Also compared the GPU.dump, it is same as earlier. With no performance penalty.

[github-actions]

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[alibuild]

Error while checking build/O2/fullCI_slc9 for 6677270 at 2025-07-30 13:47:

++ cp /sw/slc9_x86-64/O2/14549-slc9_x86-64-local1/compile_commands.json .
+++ python3 -c 'import json, os; print(os.path.commonprefix([x["file"] for x in json.loads(open("compile_commands.json").read()) if "sw/BUILD" not in x["file"] and "G__" not in x["file"] and x["file"].endswith(".cxx")]))'
++ O2_SRC=/sw/SOURCES/O2/14549-slc9_x86-64/0/
++ [[ -e /sw/SOURCES/O2/14549-slc9_x86-64/0//CMakeLists.txt ]]

Full log here.