This commit updates the LLVM::decomposeValue and LLVM::composeValue
methods to handle aggregate types - LLVM arrays and structs, and to have
different behaviors on dealing with types like pointers that can't be
bitcast to fixed-size integers. This allows the "any type" on
gpu.subgroup_broadcast to be more comprehensive - you can broadcast a
memref to a subgroup by decomposing it, for example.
(This branched off of getting an LLM to implement
ValueuboundsOpInterface on subgroup_broadcast, having it add handling
for the dimensions of shaped types, and realizing that there's no
fundamental reason you can't broadcast a memref or the like)
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
852c6ef5ac