[Clang][HIP][CUDA] Validate that variable type fits in address spaces (#178909) Currently, Clang only checks arrays and structures for size at a top-level view, that is it does not consider whether they will fit in the address space when applying the address space attribute. This can lead to situations where a variable is declared in an address space but its type is too large to fit in that address space, leading to potentially invalid modules. This patch proposes a fix for this by checking the size of the type against the maximum size that can be addressed in the given address space when applying the address space attribute. This does not currently handle instantiations of dependent variables, as the attributes are not re-processesd at that time. This is planned for further investigation and a follow-up patch. --------- Signed-off-by: Steffen Holst Larsen <HolstLarsen.Steffen@amd.com> Co-authored-by: Steffen Holst Larsen <HolstLarsen.Steffen@amd.com>
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