1. There was duplicate code between the integer range analysis's
handling of static dimension size information (ex. gpu.known_block_dim
attributes) and the handling during the lowering of those operations.
The code from integer range analysis was given a dialect-wide entry
point (and had its types fixed to be more accurate), which the lowering
templates now call.
2. The templated lowering for block/grid/cluster_dim now produces
precise ranges (indicating the constant value) where one is known, and
the lowerings in rocdl (including those for subgroup_id) have been fixed
appropriately.
3. While I was here, the gpu.dimension enum has been moved to GPUBase so
it lives next to the other enums.
4. The pattern that expands subgroup_id operations now adds any thread
dimension bounds it finds in context.
(Claude was used for an initial round of review, I did the main coding
myself.)
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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