Possibility to align a split. - #9371

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mcourteaux wants to merge 38 commits into

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mcourteaux/aligned-split

Commits on Aug 25, 2026

WIP: shared BoundsTracker for BoundConstantExtentLoops/BoundSmallAllocations/AllocationBoundsInference

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claude
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5f684b3
Fix use-after-free in BoundConstantExtentLoops's aggressive extent lookup

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claude
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29f1275
Migrate LowerWarpShuffles onto BoundsTracker

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claude
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681d1f1
Gather Let/Assert context in SimplifyCorrelatedDifferences via BoundsTracker

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9b95241

Commits on Aug 26, 2026

Bound a min-clamped ceil-div minus its unclamped multiple
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4d7cd44
Use loop monotonicity to bound an unrollable tile exactly

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claude
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2137977
Move one simplification call in lowering.

mcourteaux
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abadams
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a5d88de
Move printing of the final simplification and call it 'after reaching conceptual stmt'
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cf3e022
PoC: Aligned split directive.
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d978880
Add enable backtraces to async_copy_chain as I have found it to be stalled/deadlocked several times but couldn't debug it.
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891e8e4
Restore likely_if_innermost for ShiftInwards.
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cc30125
Add Python binding

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claude
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c903c8c
Add serialization.

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fad568a
Fix the incorrectly assumed fast-path for this aligned splits.

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973eecb
Add three rfactor + aligned split tests.

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4c3dd97
Add test for nested aligned splits.

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6b38cff
Test varying tail strategies for nested aligned splits.

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41d3858
Documentation for the aligned split.

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7cece55
Fix ShiftInwardsAndBlend, RoundUpAndBlend. Claude rederived the masks those blend operations in case of aligned splits.

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c929d18
Add simplifier rules for broadcast() <= ramp() && ramp() <= broadcast().

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claude
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7bfc6f7
Test simple aligned split in an RVar.

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7d1867c
WIP checkpoint: aligned-split debug tracing, simplifier rules, 6x6 compute_at test
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bf05e6c
Reduce aligned-split compute_at mux test to 3x3 and fix its checks
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3823f18
Give producers a tile-aligned region inside an aligned split
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9d5a33f
Starting point.
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f0c047b
Fix bad merge.
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9ee4682
Add a test for an aligned split feeding loop partitioning
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514936e
Let can_prove predicates use the simplifier's known facts

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990ef0b
Make fact lookup aware of comparison direction and strictness

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482af79
Don't re-enter fact-driven rewrite rules from inside a can_prove

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caba268
Express the can_prove re-entry guard as a depth limit

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claude
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9ba560f

Commits on Aug 27, 2026

Add a non-recursive known_true predicate for rewrite rules

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55827b5
Merge branch 'mcourteaux/can-prove-facts' into mcourteaux/aligned-split
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7215b29
Fix parenthesis of Simplify_Div.
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a983f5a
Guard against can_prove recursion at its source

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claude
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fa4a807
Fall back to fact lookup at the can_prove depth cap

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claude
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52a5e87
Use a direct fact lookup at the can_prove depth cap, not a tree walk

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032f724
Merge branch 'mcourteaux/can-prove-facts' into mcourteaux/aligned-split
mcourteaux
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1df274a