* enable RANGEIFY=1 test_assign
* work
* rangeify=0 asserts this ast
* remove that
* beta test, it's correct though
* skip multi
* matches torch/np output
* memcopy without memcopy
* can remove this
* rangeify isn't silently wrong anymore
* diff cleanup
* use UOp toposort instead of global tags
* actual assert TestRangeifyAssign
* step
* work
* this isn't optimizing away now
* some todos
* test fusion schedule
* typo
* dedup idxs
* cleaner
* pre
* work
* diff
* ci
* extract mops
* work
* assert early
* port this?
* can realize shard
* allreduce passing
* notes
* better handling of shard
* err
* outerworld allreduce twice
* work
* don't tag movement ops
* don't tag movement ops
* delete old logic
* 19 failing + ram
* cleanup
* reset stuff
* simplest failing test
* diff
* test_ones
* allreduce work
* allreduce more work
* down to 22 failing tests
* port _device_num
* replace creates a new UOp here
* pour symbolic everywhere
* 7 failing
* focus on allreduce
* work
* cleanup
* more ci
* fix test_schedule_ring
* post index const shape
* much better
* diff cleanup
* remove check
* use fold_divmod_congruence instead of simplify
* adjust tests
* shorten line
* new algo
* add test
* cleanup
* update tests
* ALLOWED_GATED_READ_IMAGE from 16 -> 12
* only remove the call to simplify
* add option to simplify with factor_remainder
* Allowed readimage gates back to 16
* lowering invalid gate is part of lower_index_dtype
* update test
* remove import
* put that back
* reduce_collapse uses invalid
* fix that pattern to use invalid_pat
* valid creates the right dtype count
* seperate rule for lowering invalid gate
* dont unvectorize Invalid gate
* image_fixup uses Invalid
* update tests
* cleanup
* update split_load_store
* add .scalar() there
* RANGEIFY=1 test_jit
* don't do any of that
* disk
* simple disk tensor
* more work
* run more tests
* it also doesn't copy everytime
* skip tests that hang everything
